Moisesbr/raspberry_exp_board

API examples for Expansion Board

Raspberry_exp_board

This project provides REST, JSON, interface to relays, digital and analog inputs. using simple bottle python web framework.

It also uses some other python libraries that are not installed on Raspbian by default:

• Bottle
• raspberry-gpio-python

Installing dependences

sudo apt-get update

sudo apt-get upgrade

sudo apt-get install python-rpi.gpio python3-rpi.gpio

sudo apt-get install python-pip

sudo pip install bottle

sudo apt-get install python-smbus

sudo apt-get install python-dev

Enable I2C

On terminal execute sudo raspi-config

Advanced options > Enable i2C

after Reboot system

Running application

sudo python api_digital_inputs.py

sudo python api_relay.py

#Examples request set high Transistor

Simple example

curl -X POST -F "token=2e52d3ebf207e71f59" -F "relayname=relay9" -F "state=high" "http://192.168.1.108:9000/relay/on_off"

api_relay.py

curl -X POST -F "token=2e52d3eb834e09f30509fcf4837478f207e71f59" -F "transistorname=transistor2" -F "state=low" "http://192.168.0.103:9000/relay/transistor_on_off"

Possibilities:

transistorname = transistor1 ... transistor3
state= low or high

Example return:

{"200": "transistor2"}

#Example request toogle relay api_relay.py

curl -X POST -F "token=2e52d3eb834e09f30509fcf4837478f207e71f59" -F "relayname=relay1" "http://192.168.0.103:9000/relay/toogle_relay"

Possibilities:

relayname = relay1 ... relay10

Return Example:

{"200": "relay1"}

#Example request set relay high api_relay.py

curl -X POST -F "token=2e52d3eb834e09f30509fcf4837478f207e71f59" -F "relayname=relay10" -F "state=high"     "http://192.168.0.103:9000/relay/on_off"

Possibilities:

relayname = relay1 ... relay10
state= low or high

Example return:

 {"200": "relay10"}

Exemple request retur relay status:

api_relay.py

curl -X POST -F "token=2e52d3eb834e09f30509fcf4837478f207e71f59" "http://192.168.0.103:9000/relay/status"

Example return:

   {
       "relay_status": {
           "return_relays": [
               0, 
               0, 
               0, 
               0, 
               0, 
               0, 
               0, 
               0, 
               0, 
               1
           ]
       }, 
       "status_transistor": {
           "return_transistor": [
               1, 
               0, 
               1
           ]
       }
   }

Example request read all digital inputs:

api_digital_inputs.py

curl -X POST  -F "token=2e52d3eb834e09f30509fcf4837478f207e71f59" "http://192.168.0.103:9001/input/state"

Example return:

{
"inputs": {
    "input_state": [
        0, 
        0, 
        0, 
        0, 
        0, 
        1, 
        0, 
        0
    ]
}
}

Set up postman: