DFRobot Gravity Alcohol Sensor (0-5ppm) Showing error
Ankur.Kumar 2025-07-21 14:20:08 360 Views2 Replies While integrating the DFRobot Gravity Alcohol Sensor (0-5ppm) with Arduino from the sample code provided on the official website of DF-Robot the reading in serial monitor is showing “No Devices” even after preheating the sensor for almost more that 24 hours
In i2c mode it does not show any reading in serial monitor and in uart mode it shows " No Devices "
2025-07-21 14:27:21 
Ankur.Kumar
Ankur.Kumar Mr.Harry
wrote:
2025-07-21 19:12:56 1 Replies
Thanks for the details. If it's showing "No Devices" even after proper preheating, it could be a wiring issue, incorrect I2C address, or a baud rate mismatch in UART mode. Double-check connections, ensure the right library is installed, and try scanning I2C devices with an I2C scanner sketch.
