Chigo air conditioner manual

Guide for After Service - GUANGDONG CHO AIR

Anyone who has tried controlling an Air Conditioner unit using an Arduino, USB IR Toy, RPi or any MCU will know how difficult it can be to record the longer infrared snals they use.

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Typical TV systems use IR snals circa 32 bits long, while this Cho AC unit uses a snal with 197 marks & spaces (or 97 data bits).

IOM Cho 1.0- EMI RetroAire

CHO Service mannal Room airconditioner Split

This was helped by installing the free ‘Samsung IR – Universal Remote‘ app onto his phone via Google Play.


The image on the left above shows the main user interface on the smart phone.

Chigo air conditioner manual:

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