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dudanov / iot-uni-dongle

An project of universal minimalistic Wi-Fi dongle for various IOT appliances controlled via UART.
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How to know which RX/TX pins to solder? #8

Open optimusprimespace opened 2 years ago

optimusprimespace commented 2 years ago

You have to guess which on is it or there are some recommendations to consider? Because it is hard to desolder these little pins if you've got it wrong.

rrelande commented 1 year ago

I assume you are referrring to USB pins. They are numbered 1,2,3,4. pins 2 and 3 are the TX/RX, 1and 4 are Vcc and GND

depending on the model of the airco, you will need to solder according to model 1 or 2 for Midea midea

For Haier and similar: haier

i hope this helps proceed