=== Waveshare Relay Board ===
Link to original site wiki [[https://www.waveshare.com/wiki/RPi_Relay_Board#Python_program]]

== Default pinout ==

Mode: GPIO.BCM
Relay 1 Port 26
Relay 2 Port 20
Relay 3 Port 21

== Install python libraries ==
<code>
sudo apt-get install python-serial python-imaging

pip install RPI.GPIO
pip install spidev

</code>