4-channel
There are 4 repositories under 4-channel topic.
charkster/MCP4728
Python driver for MCP4728 4 Channel DAC with I2C interface
ykSneerG/TrafficLight
Control a traffic light via HTML using a Raspberry and a 4 channel relay.
eawlot3000/chanloader
a tool that help you download media(images&videos) of your fond channel on 4chan
cctweaker/ESPlights
Multi channel WiFi mains voltage controller software & hardware based on the ESP8266.