Hi Team Nordic,
According to the AM2302 (DHT22) datasheet, the data pin will be pulled to high state in idle state. But in my case, when i am reading the data pin before even sending any signal to the sensor, i am reading 0 on the data pin. I am using p0.07 (pin 9 ) as data pin. VCC -> 5V, GND -> GND.
Am i not reading the pin correctly or is it a communication protocol error that i have to figure out?
Please find attached the image with output.
arshdeep said: I am using p0.07 (pin 9 ) as data pin. VCC -> 5V, GND -> GND.
Trying to describe circuit connections in words is a waste of time. Please post a schematic (aka "circuit diagram").
You haven't said what Nordic part you're using, but the Absolute Maximum voltage at any IO pin on the nRF52832 is 3.9V - I expect others are similar ...
I am using nrf52832 DK .