DFR0972 with M5Stack Basic
Tortoise 2023-08-09 16:15:19 256 Views2 Replies Hello
I try to use DFR0972 I2C Digital to Analog 4-20mA Converter with M5Stack Basic. However, sample code of "setCurrent.ino" results Error Code 2: Device not found. I have also tried to change pin No to 22 and 21, which M5stack uses for I2C connection, but it does not work.
Could anyone helps me to tell description how I can fix it up. Any help would be appriciated.
Thanks.
I'm not too familiar with the M5Stack, but I think this is the ESP32 based board after I Google it.
Could you be sure that the
GPIO22 to SCL, and GPIO21 to SDA?
And did you power the module with 18-24V DC.
Because I have noticed that the onboard chip--GP8302 is powered by the VIN pin.
Which is here:
If your wire connection is good, please upload the I2C scanner for the ESP32 to see if there is an I2C address.
Here is the I2C scanner I found on the ESP forum:
https://www.esp32.com/viewtopic.php?t=4742
Yeez_B Thank you for your advise.
I could fix my wire connection; Accordingly, It start working.
Appliciate your comment. Thanks.
