This is a project of a slack bot, to automate your office/room/lab using some Raspberry Pi GPIO pins.

Usage: Youtube

Go to https://slack.com/ . First you'll need to create a new slack workspace to use in this project(or just get the API token from a existing bot in the workspace). Then, go to https://my.slack.com/services/new/bot and choose a username for your bot.

After submit, we now have an API key. Copy this somewhere we'll need later.

Now, on your Pi you'll need to install some dependencies:

• Python3
• pip3
• python3-rpi.gpio

sudo apt-get install  python3 python3-pip python3-dev python3-rpi.gpio -y

And then some packages:

• slackclient
• psutil

pip3 install slackclient

pip3 install psutil

And download the repository:

git clone https://github.com/vitor-veras/slackbot_iot.git

After downloading slackbot_iot.py file there's some things you'll need to adapt to your bot, like your API token that we generated earlier.

slack_client = SlackClient("your-api-token-here")

In this next step, we fetch our bot User ID. We will use this later to know when somebody is talking to our bot. We keep it in slack_user_id.

user_list = slack_client.api_call("users.list")  
for user in user_list.get('members'):  
    if user.get('name') == "your-bot-name":
        slack_user_id = user.get('id')
        break

Now you can personalize your bot with some GPIO pins(any doubts about GPIO pins go to RPI.GPIO Documentation):

from slackclient import SlackClient
#GPIO SETUP
GPIO.setmode(GPIO.BOARD)
GPIO.setwarnings(False)
GPIO.setup(8,GPIO.OUT)

And some methods:

def lightOn():
    GPIO.output(8, 1)
    print ("light on!")
def lightOff():
    GPIO.output(8, 0)
    print ("light off!")

And then link the methods you've created to the bot's matching text part.

if re.match(r'.*(light off).*', message_text, re.IGNORECASE):
//words you want your bot to recognize
	lightOff() //the gpio method to execute
	slack_client.api_call(
	"chat.postMessage",
	channel=message['channel'],
	text="Light off!", //bot response
	as_user=True)

python3 slackbot_iot.py

This is an example configuration, of how you can use the GPIO pins to turn on a Led.

I'm using a Raspberry Pi B+ model 1 and the GPIO pins 6(Ground) and 8(GPIO). All the pins of this Raspberry that i'm using can be found in this picture:

Now a picture of the physical setup:

Raspberry Pi + relay board with a Led

Some useful links :)

Credits to : http://blog.benjie.me/building-a-slack-bot-to-talk-with-a-raspberry-pi/

https://www.raspberrypi.org/documentation/usage/gpio-plus-and-raspi2/

https://www.digitalocean.com/community/tutorials/how-to-use-rsync-to-sync-local-and-remote-directories-on-a-vps

https://www.raspberrypi.org/documentation/remote-access/ssh/

• Vitor Veras de Moura - GitHub - Email: [email protected]