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Sonic-Amiga / ESP8266-Faikin

Opensource replacement for Daikin BRP module to control Daikin aircon units
GNU General Public License v3.0
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Problem with Daichi dw22-b #10

Open zKeepers opened 8 months ago

zKeepers commented 8 months ago

HI. I have the same device - Daichi dw22-b ver-03 and i have a problem with connect it to computer. When connect it i get an error:

sudo dmesg
[ 2940.865999] usb 1-2-port2: Cannot enable. Maybe the USB cable is bad?
[ 2941.837116] usb 1-2-port2: Cannot enable. Maybe the USB cable is bad?
[ 2941.837587] usb 1-2-port2: attempt power cycle
[ 2943.126045] usb 1-2-port2: Cannot enable. Maybe the USB cable is bad?
[ 2944.098011] usb 1-2-port2: Cannot enable. Maybe the USB cable is bad?
[ 2944.099111] usb 1-2-port2: unable to enumerate USB device

So i can't get a COM port for flashing this device. Tried different positions of "UART" switch. Does i need another device to connect dw22-b to computer? When connected to a computer or air conditioner, dw22-b receives power, connects to Wi-Fi and works correctly with the cloud application.

Sonic-Amiga commented 1 week ago

Hello! You're probably plugging a USB cable directly into the controller; and no; that's not how it works. That USB connector is not a real USB; it's a 5V TTL serial. You need an adapter like this one https://www.waveshare.com/pl2303-usb-uart-board-micro.htm .

You can see Daichi pinout from the schematic i provided.