Author: Devon

Server Upgrade | Initial Build Spec

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Hello! Long time no write!

Lemme jump right in, the server that hosts all of my content is dying. Right now, I get around 200 hits a day, and that’s only rising (thanks youtube dudes!) which is really taking a toll on the server. It’s an HP laptop that has been on for almost two years straight, in addition to being my only computer for 4 years before that.

The only reason this is worth writing about is because I intend on using this machine for a few things other than hosing a WordPress server (hopefully I’ll write a post about migrating a content rich blog across servers).

I also want to run a series of email servers on the machine as well! It would appear that a series of virtual machines would be the most efficient way to accomplish this.

Here is a list of the components that I have ordered: http://pcpartpicker.com/user/egg/saved/3deW

Accessing both SPI ports on the raspberry pi using python

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Turns out it’s not that hard at all! Here’s a video of the whole thing working:

This basically works around concepts I first explained here. It’s still really cool though! SPI is really fast and really easy to use, perfect for a novice like me.

Here are the physical representations and schematics of the setup seen on my desk:

Images generated by fritzing.

Here’s the code that makes it all work!

#first ADC setup on SPI port 0
import spidev
spi_0 = spidev.SpiDev()
spi_0.open(0, 0)

#this fucntion can be used to find out the ADC value on ADC 0
def readadc_0(adcnum_0):
    if adcnum_0 > 7 or adcnum_0 < 0:
        return -1
    r_0 = spi_0.xfer2([1, 8 + adcnum_0 << 4, 0])
    adcout_0 = ((r_0[1] & 3) << 8) + r_0[2]
    return adcout_0

#first ADC setup on SPI port 1
import spidev
spi_1 = spidev.SpiDev()
spi_1.open(0, 1)

#this fucntion can be used to find out the ADC value on ADC 1
def readadc_1(adcnum_1):
    if adcnum_1 > 7 or adcnum_1 < 0:
        return -1
    r_1 = spi_1.xfer2([1, 8 + adcnum_1 << 4, 0])
    adcout_1 = ((r_1[1] & 3) << 8) + r_1[2]
    return adcout_1

while 1:
	for x in range (0, 8):
		print 'Port ' + str(x) + ' | '  + 'adc_0: ' + str(readadc_0(x)).zfill(4) + ' | ' + 'adc_1: ' + str(readadc_1(x)).zfill(4)
	print '----------------------------------'

Here is some further reading:

http://www.megaleecher.net/sites/default/files/images/raspberry-pi-rev2-gpio-pinout.jpg

http://hertaville.com/2013/07/24/interfacing-an-spi-adc-mcp3008-chip-to-the-raspberry-pi-using-c/

http://tightdev.net/SpiDev_Doc.pdf

Thanks for reading!

Using a pair of Arduinos to mimic a keyboard

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Here’s a video:

So in my last post I showed you a way that I used a single arduino to talk to a Raspberry Pi (or any other computer) over HID. I’ve updated the project a bit and now I can input any number of things into the pi. Basically this is how it works.

Serial Console on computer -> Arduino Mega -> software serial port -> Arduino micro -> HID on other second computer (in this case the Pi)

There are two buttons that handle pressing the enter key and the delete key as those are hard to send over serial.

There are a few bits of relevant code, both for the arduino. Here’s the mega’s code:

int sent_led = 44;
int test_button = 30;

byte inread;

#include &lt;SoftwareSerial.h&gt;
SoftwareSerial SoftSerial(34, 36); // RX, TX

void setup(){
  pinMode(sent_led, OUTPUT);
  pinMode(test_button, INPUT);

  Serial.begin(9600);
  SoftSerial.begin(4800);

  SoftSerial.println("Hello, world?");

}

void loop(){
  if (Serial.available()&gt;0){
    digitalWrite(sent_led, HIGH);
    Serial.print("Sending: ");
    inread = Serial.read();
    Serial.write(inread);
    SoftSerial.write(inread);
    Serial.print(" , ");
    Serial.print(inread);
    Serial.println("");
    digitalWrite(sent_led, LOW);
  }

}

And here’s the side for the arduino micro, that writes as an HID.

int stat_led = 3;
int enter_led = 4;
int delete_led = 5;

int enter_button = 6;
int delete_button = 7;
int engage_switch = 8;

#include <SoftwareSerial.h>
SoftwareSerial SoftSerial(11, 10); // RX, TX

void setup(){
pinMode(enter_led, OUTPUT);
pinMode(delete_led, OUTPUT);
pinMode(stat_led, OUTPUT);

pinMode(enter_button, INPUT);
pinMode(delete_button, INPUT);
pinMode(engage_switch, INPUT);

Serial.begin(9600);
SoftSerial.begin(4800);

Keyboard.begin(); //

}

void loop(){
if (SoftSerial.available()){
digitalWrite(stat_led, HIGH);
Keyboard.write(SoftSerial.read());
digitalWrite(stat_led, LOW);
}

if (digitalRead(enter_button) == HIGH){
Keyboard.press(KEY_RETURN);
delay(100);
Keyboard.release(KEY_RETURN);
digitalWrite(enter_led, HIGH);
}
else if (digitalRead(enter_button) == LOW){
digitalWrite(enter_led, LOW);
}

if (digitalRead(delete_button) == HIGH){
digitalWrite(delete_led, HIGH);
Keyboard.press(KEY_BACKSPACE);
delay(100);
Keyboard.release(KEY_BACKSPACE);
}
else if (digitalRead(delete_button) == LOW){
digitalWrite(delete_led, LOW);
}

}

Using Arduino Micro as a USB keyboard for Raspberry Pi

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Greetings from WPI! Here’s a video:

Desperate times call for desperate measures. I recently found out that a club at my school is essentially a hackerspace equipped with 3D printers so I could finally print enclosures for the PiPlanter and the DSFU. But that means I would need to finial the designs for both of them. I needed to find a way to interface with this thing here. So being the idiot that I am, I forgot a USB keyboard, I forgot an analog video cable, I forgot a monitor for the pi and forgot to update the Pi to the latest Raspian build.

What I did bring was an Easy Cap Capture Card in addition to my standard idea-kit which among other things consists of an Arduino Micro, some buttons, some resistors, and wire.

Essentially all I needed to do was connect the Pi to the EasyCap, and be able to send 4 different phrases to it over the keyboard. I needed to be able to send ‘pi’,’password’ (not my actual password), ‘ifconfig’ and enter. I realized that I could easily send this data to the Pi via the Micro as it has the Keyboard. functions built in.

As you can see in the video it worked! And I’m kind of stunned that it did. I can now SSH into the Pi.

Here’s the code for the Arduino:

int uname = 3;
int pass = 4;
int command = 5;
int enter = 6;

int green = 7;
int red = 8;

void setup(){
  pinMode(3, INPUT);
  pinMode(4, INPUT);
  pinMode(5, INPUT);
  pinMode(6, INPUT);

  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);

  Serial.begin(9600);

  Keyboard.begin();
}

void loop(){
  if (digitalRead(uname) == HIGH){
    Serial.print("1");
    Keyboard.print("pi");
    digitalWrite(green, HIGH);
    digitalWrite(red, LOW);
    delay(1000);
  }
  else {
    Serial.print("0");
    digitalWrite(green, LOW);
    digitalWrite(red, HIGH);
  }

  Serial.print(",");

  if (digitalRead(pass) == HIGH){
    Serial.print("1");
    Keyboard.print("password");
    digitalWrite(green, HIGH);
    digitalWrite(red, LOW);
    delay(1000);
  }
  else {
    Serial.print("0");
    digitalWrite(green, LOW);
    digitalWrite(red, HIGH);
  }

  Serial.print(",");

  if (digitalRead(command) == HIGH){
    Serial.print("1");
    Keyboard.print("ifconfig");
    digitalWrite(green, HIGH);
    digitalWrite(red, LOW);
    delay(1000);
  }
  else {
    Serial.print("0");
    digitalWrite(green, LOW);
    digitalWrite(red, HIGH);
  }

  Serial.print(",");

  if (digitalRead(enter) == HIGH){
    Serial.print("1");
    Keyboard.press(KEY_RETURN);
    delay(10);
    Keyboard.releaseAll();
    digitalWrite(green, HIGH);
    digitalWrite(red, LOW);
    delay(1000);
  }
  else {
    Serial.print("0");
    digitalWrite(green, LOW);
    digitalWrite(red, HIGH);
  }

  Serial.println("");
  delay(10);
}

Thanks for Reading!

PiPlanter | Goals and changes

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So I am 151 miles away from the PiPlanter. But thanks to the internet, modern day routers, and wifi dongles I can pretty much control everything about it from here.

That being said, there are a few things I would like to change about the project. First of all, the program itself needs to be more modular. Reason being is that the core program should never stop running, even if changes need to be made. I should be able to screen the main program once, and then never have to stop it ever. This would be advantageous in a few ways but the main example is that the plants will require more water as they get larger, and then less once they start yielding fruit. I could script this, but I think that it would be best to be able to edit the ‘ontime’ value from the program without having to stop the whole process.

I’ll keep y’all posted as I try to implement this.

Me Update

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Hi guys!

So here’s the deal. I left for college about a week ago. I’m here now, and I don’t think I’m going to be able to continue doing this kind of stuff at the rate I’ve been doing it lately.

There will defiantly still be content on this website, I plan on continuing this thing until I physically can’t so no worries there.

I’ll keep you posted, thanks for reading.

DSFU – Adding Email Functionality, Better User Experience, Stable Set Adding

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Big post for this project, here’s a video:

This version of the code implements a few really cool features.

First things first I added 10 LEDs that display the percent uploaded of the batch. For example if 13 / 100 photos have been uploaded, the first LED will light up. If 56 / 100 the first 5 LEDs will light up. Eventually the 10 junk LEDs will be replaced with a bar graph which will be mounted externally on the front panel of the enclosure.

I am using every single available output on my Pi now, but I was able to get away with adding 1 more LED that I should be able to use by using a transistor array explained here:

On the code side of things, I updated the way photos are added to the set. It uses the same principal as described in the previous post (using APscheduler to do the adding on an interval). All of these changes can be seen below, it’s still very poorly commented however.

#GPIO setup
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BOARD)

in_flickr = 11
GPIO.setup(in_flickr, GPIO.IN)
in_hdd = 13
GPIO.setup(in_hdd, GPIO.IN)
button = 15
GPIO.setup(button, GPIO.IN)

flickr_LED = 3
GPIO.setup(flickr_LED, GPIO.OUT)
both_LED = 5
GPIO.setup(both_LED, GPIO.OUT)
hdd_LED = 7
GPIO.setup(hdd_LED, GPIO.OUT)

stat_LED = 26
GPIO.setup(stat_LED, GPIO.OUT)

LED_bar_1 = 18
GPIO.setup(LED_bar_1, GPIO.OUT)
LED_bar_2 = 16
GPIO.setup(LED_bar_2, GPIO.OUT)
LED_bar_3 = 23
GPIO.setup(LED_bar_3, GPIO.OUT)
LED_bar_4 = 21
GPIO.setup(LED_bar_4, GPIO.OUT)
LED_bar_5 = 19
GPIO.setup(LED_bar_5, GPIO.OUT)
LED_bar_6 = 12
GPIO.setup(LED_bar_6, GPIO.OUT)
LED_bar_7 = 10
GPIO.setup(LED_bar_7, GPIO.OUT)
LED_bar_8 = 8
GPIO.setup(LED_bar_8, GPIO.OUT)
LED_bar_9 = 24
GPIO.setup(LED_bar_9, GPIO.OUT)
LED_bar_10 = 22
GPIO.setup(LED_bar_10, GPIO.OUT)

global led_bar
led_bar = []

led_bar.insert(0,18)
led_bar.insert(1,16)
led_bar.insert(2,23)
led_bar.insert(3,21)
led_bar.insert(4,19)
led_bar.insert(5,12)
led_bar.insert(6,10)
led_bar.insert(7,8)
led_bar.insert(8,24)
led_bar.insert(9,22)

for x in xrange(10):
			GPIO.output(led_bar[x],False)

import os

from apscheduler.scheduler import Scheduler
import logging
logging.basicConfig()
import time

#Flickr Setup
import flickrapi

api_key = ''
api_secret = ''

flickr = flickrapi.FlickrAPI(api_key, api_secret, format='json', cache=True)

(token, frob) = flickr.get_token_part_one(perms='write')
if not token: raw_input("Press ENTER after you authorized this program")
flickr.get_token_part_two((token, frob))

#email setup
import smtplib

import math

def sd_walk():

	global file_list
	global file_number
	global filename
	global file_current

	global file_size
	global file_size_total

	print '-Starting File Index'

	for path, subdirs, files in os.walk(image_dir):
		for filename in files:
				if os.path.splitext(filename)[1].lower() in ('.jpg','jpeg'):

					listfiles = os.path.join(path, filename)

					file_list.insert(file_number,listfiles)
					print '--File: ' + str(file_number+1) + ' - ' + 'Size: ' + str(round(float(os.path.getsize(listfiles))/(1024),2)) + ' KB ' + ' Added To List: ' + str(listfiles)
					file_size_total = file_size_total + os.path.getsize(listfiles)
					file_number = file_number + 1

	print '-Indexing Completed ' + 'Total Files: ' + str(file_number) + ' - Total Size: ' + str(round(float(file_size_total)/(1024*1024*1024),2)) + ' GB' + '\n'
	print '---Starting Upload'

def upload_file():

	global file_list
	global file_number
	global filename
	global listfiles
	global file_current

	global file_size
	global file_size_total

	global led_bar

	if file_current == int(len(file_list)):
		print '\n----All Files Dealt With...Terminating \n'
		global scheduler
		scheduler.shutdown(shutdown_threadpool=False)
	else:

		percent = round((float(file_current+1) / float(len(file_list)))*100,0)
		led = round((float(file_current+1) / float(len(file_list)))*10,0)

		file_size = file_size + float(os.path.getsize(file_list[file_current]))/(1024)

		print '----File: ' +  str(file_current+1) + ' / ' + str(len(file_list)) + ' - ' + str(round(file_size,2)) + ' KB' + ' / ' + str(round(float(file_size_total)/(1024*1024*1024),2)) + ' GB' + ' - ' + str(percent) + '% Done' + ' - ' + 'LEDs: ' + '1-' + str(led) + ' Lit'
		print '------File For Upload: ' + file_list[file_current]

		for x in xrange(int(led)):
			GPIO.output(led_bar[x],True)

		upload_response = flickr.upload(filename = file_list[file_current], format='etree')
		upload_ID = upload_response.find('photoid').text
		print '------Uploaded - Photo ID: ' + upload_ID

		id_list.insert(file_current,upload_ID)

		file_current = file_current + 1

def flickr_upload():

	global id_list
	id_list = []

	global file_list
	file_list = []

	global file_current
	file_current = 0

	global file_number
	file_number = 0

	global file_size
	file_size = 0

	global file_size_total
	file_size_total = 0

	sd_walk()

	global scheduler
	scheduler = Scheduler(standalone=True)
	scheduler.add_interval_job(upload_file,seconds=20)
	scheduler.start()

	print '--Uploading completed - Adding Files To Set'

	set_name = 'Uploaded At ' + time.strftime('%m-%d-%y_%H-%M-%S')
	print '\n---Creating Set: ' + set_name
	print '---Primary Photo: ' + id_list[0]
	json_string = flickr.photosets_create(title=set_name, primary_photo_id=id_list[0])
	global set_id
	set_id = json_string.split('"')[5]
	print '---Set Created: ' + set_id
	print '---Adding Files To list'

	global flickr_setno
	flickr_setno = 0

	global scheduler
	scheduler = Scheduler(standalone=True)
	scheduler.add_interval_job(flickr_addset,seconds=1)
	scheduler.start()

	print '--All Photos Added, Flickr Process Complete \n'

	flickr_email(set_id,file_current,set_name)

def flickr_addset():

	global id_list
	global set_id
	global flickr_setno

	if flickr_setno == int(len(id_list)):
		print '\n---All IDs Dealt With...Terminating \n'
		global scheduler
		scheduler.shutdown(shutdown_threadpool=False)

	else:
		flickr.photosets_addPhoto(photoset_id=set_id, photo_id=id_list[flickr_setno])
		print '----Photo: ' + str(flickr_setno+1) + ' Of ' + str(len(id_list)) + ' Added To Set: ' + str(set_id) + ' ID: ' + str(id_list[flickr_setno])
		flickr_setno = flickr_setno + 1

def flickr_email(idd,total_files,name):

	global file_size_total

	fromaddr = ''
	toaddrs = ''
	username = ''
	password = ''
	server = smtplib.SMTP('smtp.gmail.com:587')
	server.ehlo()
	server.starttls()
	server.ehlo()
	server.login(username,password)

	print 'Sending Email'

	SUBJECT = 'Your Photos Have Been Uploaded!'

	TEXT = (

		'Hello! \n\n'
		'You Uploaded a total of: ' + str(total_files) + ' Files' '\n'
		'Which Was: ' + str(float(file_size_total)/(1024*1024*1024)) + ' GB' + '\n\n'

		'Your Set is Named: "' + str(name) + '" \n\n'
		'You can View These Photos Here: \n'

		'http://www.flickr.com/photos/99154806@N04/sets/' + str(idd)

		)

	msg = 'Subject: %s\n\n%s' % (SUBJECT, TEXT)
	server.sendmail(fromaddr, toaddrs, msg)
	time.sleep(10)
	server.quit
	print 'Email Sent \n'

while 1:

	global led_bar

	GPIO.output(stat_LED, False)

	if GPIO.input(in_flickr):
		#print "left"
		GPIO.output(flickr_LED, True)
		GPIO.output(both_LED, False)
		GPIO.output(hdd_LED, False)

	elif GPIO.input(in_hdd):
		#print "right"
		GPIO.output(flickr_LED, False)
		GPIO.output(both_LED, False)
		GPIO.output(hdd_LED, True)

	else:
		#print "mid"
		GPIO.output(flickr_LED, False)
		GPIO.output(both_LED, True)
		GPIO.output(hdd_LED, False)

	if GPIO.input(button):
		GPIO.output(stat_LED, True)

		print '\n======Start=====\n'

		print 'Mounting SD'
		time.sleep(10)
		global image_dir

		image_dir = '/mnt/SD/'
		os.system('hdparm -z /dev/sda1/')
		os.system('mount -t vfat /dev/sda1/ ' + image_dir)
		print 'SD Mounted \n'

		if GPIO.input(in_flickr):

			flickr_upload()

			print 'SD Unmouting'
			time.sleep(10)
			os.system('umount -t vfat /dev/sda1/ ' + image_dir)
			print 'SD Unounted'
			print '======End======'
			GPIO.output(stat_LED, False)

			for x in xrange(10):
				GPIO.output(led_bar[x],False)

		elif GPIO.input(in_hdd):

			hdd_upload()

			print 'SD Unmouting'
			time.sleep(10)
			os.system('umount -t vfat /dev/sda1/ ' + image_dir)
			print 'SD Unounted'
			print '======End======'
			GPIO.output(stat_LED, False)

			for x in xrange(10):
				GPIO.output(led_bar[x],False)

		else:

			both_upload()

			print 'SD Unmouting'
			time.sleep(10)
			os.system('umount -t vfat /dev/sda1/ ' + image_dir)
			print 'SD Unounted'
			print '======End======'
			GPIO.output(stat_LED, False)

			for x in xrange(10):
				GPIO.output(led_bar[x],False)

Thanks for reading!

Multiple Project Update

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Hi guys

So I’ve been eeking out all that I can of my last few days of summer, and there hasn’t been much rain or bad weather at all. As a result, I’m not posting much at all.

Doesn’t mean I’m not working though, I’ve been doing a couple things.

First thing’s first my speaker is done. I just need to get a bunch of video edited, and a big post written.

Secondly I’m still working really hard on my dead simple flickr uploader (dsfu). The cool thing about this project is that it has the potential to be very useful to quite a number of people, so I’m trying to make sure that it is very stable, and very easy to duplicate. This means for the most part I’ve been doing a series of 4000+ photo uploads trying to break my script. It’s happened a lot, and you can check my twitter feed to see my brain melt as I try and figure out the problem. This project won’t necessarily be “complete” until I have a 3D printer at my disposal to create the enclosure I want.

As for the PiPlanter, it’s still a work in progress. The update I did with my last post was a start to something really complete it is in no way finished. I still need to move the camera, and the plants.

Thanks for reading!

Pi Uploader | Reliable Batch Uploads to Flickr

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Here’s a video:

So basically the program indexes every single file on the SD card and then starts a scheduled interval process to upload them every single upload to flickr every 20 seconds. From there, it creates a set and indexes all of the upload responses and then walks though that list and adds each photo to that list. Then it emails the set URL with some other data.

I had a lot of problems with the flickr API timing out, and solved this problem by using APscheduler (easily my favorite package). You can see a more in depth chronicling my struggle on my twitter account.

I really want this project to be polished so I probably won’t be done with it for a while. I want to like 3D print a really nice looking enclosure and use a lot of panel mount components.

Here’s the python script:

#GPIO setup
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BOARD)

in_flickr = 11
GPIO.setup(in_flickr, GPIO.IN)
in_hdd = 13
GPIO.setup(in_hdd, GPIO.IN)
button = 16
GPIO.setup(button, GPIO.IN)

flickr_LED = 3
GPIO.setup(flickr_LED, GPIO.OUT)
both_LED = 5
GPIO.setup(both_LED, GPIO.OUT)
hdd_LED = 7
GPIO.setup(hdd_LED, GPIO.OUT)
uploading_LED = 26
GPIO.setup(uploading_LED, GPIO.OUT)
ready_LED = 24
GPIO.setup(ready_LED, GPIO.OUT)
stat_LED = 22
GPIO.setup(stat_LED, GPIO.OUT)

import os

from apscheduler.scheduler import Scheduler
import logging
logging.basicConfig()
import time

#Flickr Setup
import flickrapi

api_key = ''
api_secret = ''

flickr = flickrapi.FlickrAPI(api_key, api_secret, format='json', cache=True)

(token, frob) = flickr.get_token_part_one(perms='write')
if not token: raw_input("Press ENTER after you authorized this program")
flickr.get_token_part_two((token, frob))

#email setup
import smtplib

def sd_walk():

	global file_list
	global file_number
	global filename
	global file_current

	print '-Starting File Index'

	for path, subdirs, files in os.walk(image_dir):
		for filename in files:
				if os.path.splitext(filename)[1].lower() in ('.jpg','jpeg'):

					listfiles = os.path.join(path, filename)

					file_list.insert(file_number,listfiles)
					print '--File: ' + str(file_number+1) + ' Added To List: ' + str(listfiles)
					file_number = file_number + 1

	print '-Indexing Completed \n'
	print '---Starting Upload'

def upload_file():

	global file_list
	global file_number
	global filename
	global listfiles
	global file_current

	if file_current == int(len(file_list)):
		print '\n----All Files Dealt With...Terminating \n'
		global scheduler
		scheduler.shutdown(shutdown_threadpool=False)
	else:
		print '----Uploaing File: ' +  str(file_current+1) + ' Of: ' + str(len(file_list)) + ' : ' + file_list[file_current]

		upload_response = flickr.upload(filename = file_list[file_current], format='etree')
		upload_ID = upload_response.find('photoid').text
		print '------Uploaded - Photo ID: ' + upload_ID

		id_list.insert(file_current,upload_ID)

		file_current = file_current + 1

def flickr_upload():

	global id_list
	id_list = []

	global file_list
	file_list = []

	global file_current
	file_current = 0

	global file_number
	file_number = 0

	sd_walk()

	global scheduler
	scheduler = Scheduler(standalone=True)
	scheduler.add_interval_job(upload_file,seconds=20)
	scheduler.start()

	print '---Uploading completed - Adding Files To Set'

	set_name = 'Uploaded At ' + time.strftime('%m-%d-%y_%H-%M-%S')
	print '\n----Creating Set: ' + set_name
	print '----Primary Photo: ' + id_list[0]
	json_string = flickr.photosets_create(title=set_name, primary_photo_id=id_list[0])
	global set_id
	set_id = json_string.split('"')[5]
	print '----Set Created: ' + set_id
	print '----Adding Files To list'

	global flickr_setno
	flickr_setno = 0

	global scheduler
	scheduler = Scheduler(standalone=True)
	scheduler.add_interval_job(flickr_addset,seconds=1)
	scheduler.start()

	print '---All Photos Added, Flickr Process Complete \n'

	flickr_email(set_id,file_current,set_name)

def flickr_addset():

	global id_list
	global set_id
	global flickr_setno

	if flickr_setno == int(len(id_list)):
		print '\n----All IDs Dealt With...Terminating \n'
		global scheduler
		scheduler.shutdown(shutdown_threadpool=False)

	else:

		flickr.photosets_addPhoto(photoset_id=set_id, photo_id=id_list[flickr_setno])
		print '-----Photo: ' + str(flickr_setno+1) + ' Of ' + str(len(id_list)) + ' Added To Set: ' + str(set_id) + ' ID: ' + str(id_list[flickr_setno])
		flickr_setno = flickr_setno + 1

def flickr_email(idd,total_files,name):

	fromaddr = ''
	toaddrs = ''
	username = ''
	password = ''
	server = smtplib.SMTP('smtp.gmail.com:587')
	server.ehlo()
	server.starttls()
	server.ehlo()
	server.login(username,password)

	print 'Sending Email'
	SUBJECT = 'Your Photos Have Been Uploaded!'
	TEXT = 'Hello!\n\nYou Uploaded a total of: ' + str(total_files) + '\nYour Set is Named: "' + str(name) + '" \nYou can View These Photos Here: \n\n http://www.flickr.com/photos/99154806@N04/sets/' + str(idd)
	msg = 'Subject: %s\n\n%s' % (SUBJECT, TEXT)
	server.sendmail(fromaddr, toaddrs, msg)
	time.sleep(10)
	server.quit
	print 'Email Sent \n'

while 1:

	GPIO.output(ready_LED, True)
	GPIO.output(uploading_LED, False)
	GPIO.output(stat_LED, False)

	if GPIO.input(in_flickr):
		#print "left"
		GPIO.output(flickr_LED, True)
		GPIO.output(both_LED, False)
		GPIO.output(hdd_LED, False)

	elif GPIO.input(in_hdd):
		#print "right"
		GPIO.output(flickr_LED, False)
		GPIO.output(both_LED, False)
		GPIO.output(hdd_LED, True)

	else:
		#print "mid"
		GPIO.output(flickr_LED, False)
		GPIO.output(both_LED, True)
		GPIO.output(hdd_LED, False)

	if GPIO.input(button):
		GPIO.output(uploading_LED, True)
		GPIO.output(ready_LED, False)

		print '======Start====='

		print 'Mounting SD'
		time.sleep(1)
		global image_dir

		image_dir = '/mnt/SD/'
		os.system('mount -t vfat /dev/sda1/ ' + image_dir)
		print 'SD Mounted'

		if GPIO.input(in_flickr):

			flickr_upload()

			print 'SD Unmouting'
			time.sleep(10)
			os.system('umount -t vfat /dev/sda1/ ' + image_dir)
			print 'SD Unounted'
			print '======End======'
			GPIO.output(uploading_LED, False)
			GPIO.output(ready_LED, True)

		elif GPIO.input(in_hdd):

			hdd_upload()

			print 'SD Unmouting'
			time.sleep(10)
			os.system('umount -t vfat /dev/sda1/ ' + image_dir)
			print 'SD Unounted'
			print '======End======'
			GPIO.output(uploading_LED, False)
			GPIO.output(ready_LED, True)

		else:

			both_upload()

			print 'SD Unmouting'
			time.sleep(10)
			os.system('umount -t vfat /dev/sda1/ ' + image_dir)
			print 'SD Unounted'
			print '======End======'
			GPIO.output(uploading_LED, False)
			GPIO.output(ready_LED, True)

Thanks for reading!

PiPlanter | Big Overhaul Update

/ Leave a comment

Okay! So I leave for college in less than 30 days, but I’d like to make sure my tomatoes to continue to grow once I leave so I’ve taken some steps to make sure that my departure goes smoothly.

Here’s a video of my revised setup:

There are a few key differences between this setup and my previous one:

The main one is that the watering system has been 100% re-vamped. The water distribution happens via a hose with holes in it instead of using the tray at the bottom of the plant grid in the previous video.

It also takes, uploads and tweets a picture of itself using a raspberry pi camera module.

It also creates a new mysql table every two weeks, and in turn, renders a new kind of graph. The renderscript.php file receives an argument from the python script which is the table code.

Here’s the python script:

#Timing setup
from datetime import datetime
from apscheduler.scheduler import Scheduler
import time
import datetime
import sys
import os




now =datetime.datetime.now()




#import logging #if you start getting logging errors, uncomment these two lines
#logging.basicConfig()




#GPIO setup
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BOARD)
GPIO.cleanup()
pin = 26 #pin for the adc
GPIO.setup(pin, GPIO.OUT)
NPNtrans = 3 #the pin for the npn transistor
GPIO.setup(NPNtrans, GPIO.OUT)
sampleLED = 5 #the indicator LED
GPIO.setup(sampleLED, GPIO.OUT)
pump = 7 #pin for the pump
GPIO.setup(pump, GPIO.OUT)
GPIO.output(pump, False)




#the adc's SPI setup
import spidev
spi = spidev.SpiDev()
spi.open(0, 0)




#sets up the program's ability to write to a mysql database
import MySQLdb
con = MySQLdb.connect('localhost','piplanter_user','piplanter_pass','piplanter');
cursor = con.cursor()




#tweepy setup, you must use the keys given to you when you create your app
import tweepy
consumer_key=""
consumer_secret=""
access_token=""
access_token_secret=""
#"logs in" to twitter, 
auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
auth.set_access_token(access_token, access_token_secret)
api = tweepy.API(auth)




#Flickr Setup
import flickrapi
api_key = ''
api_secret = ''
flickr = flickrapi.FlickrAPI(api_key, api_secret, format='json')
(token, frob) = flickr.get_token_part_one(perms='write')
if not token: raw_input("Press ENTER after you authorized this program")
flickr.get_token_part_two((token, frob))




#Variable Setup
ontime = 60




global table_number
table_number = 0




#fuction that can read the adc
def readadc(adcnum): 
# read SPI data from MCP3008 chip, 8 possible adc's (0 thru 7)
    if adcnum > 7 or adcnum < 0:
        return -1
    r = spi.xfer2([1, 8 + adcnum << 4, 0])
    adcout = ((r[1] & 3) << 8) + r[2]
    return adcout
     	
def water():
	
	print "===== Starting Watering Process ====="
	
	GPIO.output(NPNtrans, True)
	GPIO.output(sampleLED, True)
	
	time.sleep(1)
	
	sensor1_before = readadc(0)
	sensor2_before = readadc(1)
	sensor3_before = readadc(2)
	sensor4_before = readadc(3)
	
	before = "WATERING START / Moisture Before - " + "Sensor 1:" + str(sensor1_before) + " Sensor 2:" + str(sensor2_before) + " Sensor 3:" + str(sensor3_before) + " Sensor 4:" + str(sensor4_before) + " - Average:" + str((float(sensor1_before+sensor2_before+sensor3_before+sensor4_before)/4)) 
	api.update_status(before) 
	print before
	
	GPIO.output(pump, True)
	time.sleep(ontime)
	GPIO.output(pump, False)
	
	time.sleep(60) #gives the water time to penetrate the soil
	
	sensor1_after = readadc(0)
	sensor2_after = readadc(1)
	sensor3_after = readadc(2)
	sensor4_after = readadc(3)
	
	after = "WATERING COMPLETED / Moisture After - " + "Sensor 1:" + str(sensor1_after) + " Sensor 2:" + str(sensor2_after) + " Sensor 3:" + str(sensor3_after) + " Sensor 4:" + str(sensor4_after) + " - Average: " + str((float(sensor1_after+sensor2_after+sensor3_after+sensor4_after)/4)) 
	api.update_status(after) 
	print after
	
	GPIO.output(NPNtrans, False)
	GPIO.output(sampleLED, False)
	
	print "====== Watering Process Complete ====="    	
    	
def hourlyUpdate():
	GPIO.output(pump, False)
	print "----------start----------\n"
	
	GPIO.output(NPNtrans, True)
	GPIO.output(sampleLED, True)
	
	time.sleep(1)
	
	sampleTime = time.ctime()
	
	mst1 = 1024-readadc(0)
	mst2 = 1024-readadc(1)
	mst3 = 1024-readadc(2)
	mst4 = 1024-readadc(3)
	
	pot1 = readadc(4)
	
	ldr1 = readadc(5)
	
	millivolts = readadc(6)*(3300.0/1024.0)
	temp_c = ((millivolts - 100.0)/10)-40.0
	tmp1 = (temp_c * 9.0 / 5.0) + 32
	
	print 'Polling Probes \n'
	
	#prints debug info to console
	print sampleTime,"|","MST1:",mst1,"MST2:",mst2,"MST3:",mst3,"MST4:",mst4,"Pot1:",pot1,"LDR1:",ldr1,"TMP1:",tmp1 #prints the debug info
	
	global table_number
	print 'Adding Data To Table: ' + str(table_number)




	#adds the data to the mysql table
	global table_number
	cursor.execute('INSERT INTO piplanter_table_'+ table_code +'(Time,mst1_V,mst2_V,mst3_V,mst4_V,pot1_V,ldr1_V,tmp1_F) VALUES(%s,%s,%s,%s,%s,%s,%s,%s)',(sampleTime,mst1,mst2,mst3,mst4,pot1,ldr1,tmp1))
	con.commit() #this is important for live updating
	GPIO.output(NPNtrans, False) #turns the probes off
	print 'Data Collected, Disengaging Probes \n'
	
	
	#takes a picture of the plants
	print 'Taking Picture with Raspberry Pi Camera Board'
	picture_dir = '/home/pi/documents/piplanter/images/'
	os.system('raspistill -o ' + picture_dir + str(time.strftime('%m-%d-%y_%H-%M-%S')) + '.jpg')
	print 'Capture Successfull: ' + picture_dir + str(time.strftime('%m-%d-%y_%H-%M-%S')) + '.jpg'
		
	#finds the newest image in the directory
	print '\nUploading Picture To Flickr'
	picture_allfiles = sorted(os.listdir(picture_dir), key=lambda p: os.path.getctime(os.path.join(picture_dir, p)))
	picture_newest = picture_dir+picture_allfiles[-1]
	print 'File for upload: ' + picture_newest #prints location and file to console
	
	#uploads the picture of the plants to flickr
	picture_title = 'Picture @ ' + str(sampleTime)
	picture_response = flickr.upload(filename=picture_newest, title=picture_title, format='etree') #uploads the file to flickr
	picture_photoID = picture_response.find('photoid').text #gets the id of the photo for constructing a url
	print 'Picture Upload Successful, Photo ID: ' + picture_photoID + '\n' #more debug info
	
	time.sleep(10)
	
	#renders the image of the graph
	print "Graph Render Start"
	global table_code
	os.system('php /opt/bitnami/wordpress/piplanter/renderScript.php ' + table_code ) #renders the .png file
	print "Graph Render Complete \n"
	
	#finds the newest image in the directory
	print 'Uploading Graph To Flickr'
	graph_allfiles = sorted(os.listdir('/opt/bitnami/wordpress/piplanter/renders/'), key=lambda p: os.path.getctime(os.path.join('/opt/bitnami/wordpress/piplanter/renders/', p)))
	graph_newest = '/opt/bitnami/wordpress/piplanter/renders/'+graph_allfiles[-1]
	print 'File for upload: ' + graph_newest #prints location and file to console
	
	graph_title = 'Graph @ ' + str(sampleTime)
	graph_response = flickr.upload(filename=graph_newest, title=graph_title, format='etree') #uploads the file to flickr
	graph_photoID = graph_response.find('photoid').text #gets the id of the photo for constructing a url
	print 'Graph Upload Successful, Photo ID: ' + graph_photoID + '\n' #more debug info
	
	#tweets the images and data
	send = 'Brghtnss: ' + str(format((((float(ldr1)/1024)*100)),'.0f')) + '% / ' + 'Tmprtr: ' + str(format(tmp1,'.0f')) + ' Dg F' + ' / Avg Plnt Moisture: '+  str(format(float((float((mst1+mst2+mst3+mst4)/4)/1024)*100),'.0f')) + '%' + ' Graph: ' + 'http://www.flickr.com/photos/97350286@N08/'+ str(graph_photoID) + ' Pic: ' + 'http://www.flickr.com/photos/97350286@N08/' + str(picture_photoID) #builds the text of the tweet
	print "Tweeting:" , send  #for debug purposes
	api.update_status(send) #tweets the tweet
		
	time.sleep(.1)
	GPIO.output(sampleLED, False)
	
	print "\n-----------end-----------"
	
def table_update():
	
	global table_number
	table_number = table_number + 1
	
	global table_code
	table_code = str(time.strftime('%m_%d_%y_%H_%M_%S')) + '__' + str(table_number)
	print 'Creating Table: ' + table_code
	cursor.execute('USE piplanter')
	con.commit()
	cursor.execute('CREATE TABLE piplanter_table_'+ table_code +'(Sample_Number INT NOT NULL AUTO_INCREMENT PRIMARY KEY, Time VARCHAR(100), mst1_V VARCHAR(100), mst2_V VARCHAR(100), mst3_V VARCHAR(100), mst4_V VARCHAR(100), pot1_V VARCHAR(100), ldr1_V VARCHAR(100), tmp1_F VARCHAR(100) );')
	con.commit()




table_update()
hourlyUpdate()
	
scheduler = Scheduler(standalone=True)




scheduler.add_interval_job(hourlyUpdate, hours=1)
scheduler.add_interval_job(water, days=1)
scheduler.add_interval_job(table_update, weeks=2)




scheduler.start() #runs the program indefianately once every hour

Here’s the .php script:

<?php

/* Include all the classes */ 
include("/srv/www/lib/pChart/class/pData.class.php");
include("/srv/www/lib/pChart/class/pDraw.class.php");
include("/srv/www/lib/pChart/class/pImage.class.php");

$myData = new pData(); /* Create your dataset object */ 

$db = mysql_connect("localhost", "piplanter_user", "piplanter_pass"); //location of server, db username, db pass
mysql_select_db("piplanter", $db);

$Requete = "SELECT * FROM `piplanter_table_" . $argv[1] . "`"; //table name
$Result = mysql_query($Requete, $db);

/*This fetches the data from the mysql database, and adds it to pchart as points*/
while($row = mysql_fetch_array($Result))
{	
	$Time = $row["Time"];
	$myData->addPoints($Time,"Time");
	
	$mst1_V = $row["mst1_V"];
	$myData->addPoints($mst1_V,"mst1_V");
	$mst2_V = $row["mst2_V"];
	$myData->addPoints($mst2_V,"mst2_V");
	$mst3_V = $row["mst3_V"];
	$myData->addPoints($mst3_V,"mst3_V");
	$mst4_V = $row["mst4_V"];
	$myData->addPoints($mst4_V,"mst4_V");
	
	$ldr1_V = $row["ldr1_V"];
	$myData->addPoints($ldr1_V,"ldr1_V");
	
	$tmp1_F = $row["tmp1_F"];
	$myData->addPoints($tmp1_F,"tmp1_F");
}

$myData-> setSerieOnAxis("tmp1_F", 0); //assigns the data to the frist axis
$myData-> setAxisName(0, "Degrees F"); //adds the label to the first axis

$myData-> setSerieOnAxis("ldr1_V", 1);
$myData-> setAxisName(1, "LDR");

$myData-> setSerieOnAxis("mst1_V", 2);
$myData-> setSerieWeight("mst1_V",2);
$myData-> setSerieOnAxis("mst2_V", 2);
$myData-> setSerieOnAxis("mst3_V", 2);
$myData-> setSerieOnAxis("mst4_V", 2);
$myData-> setAxisName(2, "Relative Moisture");

$myData->setAbscissa("Time"); //sets the time data set as the x axis label

$myData-> setSerieWeight("mst1_V",1); //draws the line tickness
$myData->setPalette("mst1_V",array("R"=>58,"G"=>95,"B"=>205,"Alpha"=>80)); //sets the line color
$myData-> setSerieWeight("mst2_V",1);
$myData->setPalette("mst2_V",array("R"=>39,"G"=>64,"B"=>139,"Alpha"=>80));
$myData-> setSerieWeight("mst3_V",1);
$myData->setPalette("mst3_V",array("R"=>0,"G"=>34,"B"=>102,"Alpha"=>80));
$myData-> setSerieWeight("mst4_V",1);
$myData->setPalette("mst4_V",array("R"=>67,"G"=>110,"B"=>238,"Alpha"=>80));

$myData-> setSerieWeight("ldr1_V",2);
$myData-> setSerieTicks("ldr1_V", 4);

$myData-> setSerieWeight("tmp1_F",2);
$myData-> setSerieTicks("tmp1_F", 4);

$myPicture = new pImage(4000,500,$myData); /* Create a pChart object and associate your dataset */ 
$myPicture->setFontProperties(array("FontName"=>"/srv/www/lib/pChart/fonts/pf_arma_five.ttf","FontSize"=>6)); /* Choose a nice font */
$myPicture->setGraphArea(130,40,3900,300); /* Define the boundaries of the graph area */
$myPicture->drawScale(array("LabelRotation"=>320)); /* Draw the scale, keep everything automatic */ 

$Settings = array("R"=>250, "G"=>250, "B"=>250, "Dash"=>1, "DashR"=>0, "DashG"=>0, "DashB"=>0);

/*The combination makes a cool looking graph*/
$myPicture->drawPlotChart(array("DisplayValues"=>TRUE));
$myPicture->drawLineChart();
$myPicture->drawLegend(30,320); //adds the legend

//$date-> date("d-M-Y:H:i:s");

//$myPicture->autoOutput(); /* Build the PNG file and send it to the web browser */ 

$myPicture->render("/opt/bitnami/wordpress/piplanter/renders/".date("d-M-Y_H:i:s").".png");

?>

Thank you for reading!