httprelay

Minimal python HTTP server with CORS support to control RaspberryPi GPIOs, for example to control relays.

You can control up to 24 GPIO.

setup

• download the project
• run pip install -r requirements.txt
• defines the GPIOs pins to control in server.py

Run with python server.py

HTTP API

• /gpio/7 : get pin 7 current status
• /gpio/7/output/0 : set pin 7 output to GPIO.LOW
• /gpio/7/output/1 : set pin 7 output to GPIO.HIGH

Sample test UI : http://jsbin.com/mahexo

API returns:

{
  "pin": 7,
  "value" : true
}

Available GPIOs

Use the physical port to address the API

Physical port	GPIO#
7	7
8	15
10	16
11	0
12	1
13	2
15	3
16	4
18	5
19	12
21	13
22	6
23	14
24	10
26	11
29	21
31	22
32	26
33	23
35	24
36	27
37	25
38	28
40	29

Autostart

• add /home/pi/httprelay/start.sh & to your /etc/rc.local
• the sample start.sh script shows how to start the process in a screen session