Temp sensor stop working when Fan is running

Products & Technology Grove
#1

Hello everyone,

I have the Azure Grove Kit with RaspberryPi 3. I have the Temp&Humi Sensor on port D2 and Mini I2C Motor Driver with 1 Fan on port I2C2 (like https://github.com/Seeed-Studio/AzureGroveKit)

Temp&Humi sensor is working fine with output send to Azure IoT Hub. Though when the fan is started, the Temp&Humi sensor stops working. At the same time on the GrovePi หมวกกันน็อค board the red led marked with RST (next to the green PWR led) starts flickering. When the fan is stopped, the flickering of the RST led stops and the Temp&Humi sensor starts working again. Maybe it’s because of too low power, though I’m using the default RaspberryPi adapter with 2.5A. Any suggestions?



Thanks,.

#2

Hi There

I laboring under the belief that your view is true because raspberry3’s PWR led flashing means that do not have enough power. And you should provide additional power for Mini I2C Motor Driver. :smiley: