Will this read reversed colour QR codes (White on black background)?
JaneYu 2023-08-09 15:02:39 144 Views3 Replies Will this read reversed colour QR codes (White on black background)?
I tried to hook this up to LattePanda delta, Arduino DUE, ESP32 and it doesn't work with the sample code, tried with and without the I/O Expansion shield as well as both the UART and I2C mode. Any suggestion? I can only get null from gm60.detection(), only able to see the sensor changing color when it's powered-on and connected
JaneYu Please use the ESP32 to use this sensor and set the baud rate of the serial monitor to 9600.
If it still doesn't work, please send your test video to our technical support e-mail. So that we can check if there is a hardware problem.
I hooked this as described to an ESP32 Pin (21 and 22 for I2C) and no response. I ordered two of these an neither one will respond in your demo code. I get null from gm60.detection() so not sure if these work at all. Any suggestions? BTW, I also tried UART and same result...no response from gm60.detection().
JaneYu 
