not read
Intekai 2023-05-20 07:51:42 1485 Views8 Replies Hello
i tried the device in both UART and I2C on arduino uno and esp32 the light flashes and changes colour and always gives me null as a value what can i do?
Hello,
please help me
Intekai Hi
I am having exactly the same issue. I get null each time when I scan QR.
Did you manage to resolve this and if yes I would be grateful if you advise me how to get round this? Thanks in advance.
I use arduino uno rev. 3 with this configuration
i have this danger in monitor
and this in serial monitor
Intekai Turn the DIP switch of the adapter board to UART, and the setting will take effect after powering on again.
Code System:- 1D: EAN13, EAN8, UPCA, UPCE0, UPCE1, Code128, Code39, Code93, CodeBar, Interleaved 2 of 5- 2D: QR code, Data Matrix, PDF417
jenna I have changed it but not work
i have used this instruction with Arduino UNO
https://wiki.dfrobot.com/SKU_SEN0486_Gravity_Ring_2D_QR_Code_Scanner
but not read
Intekai 
