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TroubleshootingFirebeetle ESP32/8266

not read

userHead Intekai 2023-05-19 23:51:42 481 Views7 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?

2023-05-23 15:16:50

Hello,

please help me

 userHeadPic Intekai
2023-05-22 17:22:50

I use arduino uno rev. 3 with this configuration

 

Gravity：Ring 2D QR Code Scanner

i have this danger in monitor

and this in serial monitor

 

 userHeadPic Intekai
2023-05-22 10:22:30

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

 

 

 

 

 

 

 

 userHeadPic jenna
Intekai wrote:

I have changed it but not work

 2023-05-22 12:04:43 1 Replies
2023-05-20 22:34:24

i have used this instruction with Arduino UNO

https://wiki.dfrobot.com/SKU_SEN0486_Gravity_Ring_2D_QR_Code_Scanner

 

but not read

 userHeadPic Intekai
2023-05-20 22:33:46

https://www.dfrobot.com/product-2485.html

 

 

 userHeadPic Intekai
2023-05-20 00:50:34

Hello, it's not clear which product you're actually using. 

 

 userHeadPic bidrohini.bidrohini
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p.name Gravity: Ring 2D QR Code Scanner SEN0486