DanielGeA
DanielGeA
Does it works if you plug the genuine sensor after the receiver boots?
Check that SDA and SCL are not twisted to the rp2040.
> I am attaching the data of the I2 signal of the genuine Hitec temperature sensor. Since the 2nd and 8th bytes of the 8 bytes of the oscilloscope data...
This is what I get fron arduino mega when rp2040 is not connected:  I expect to see the same from the hitec receiver when nothing is connected to the...
Once we get this request from the receiver, we can continue. Otherwise is difficult. You are using two pull ups one for SDA, other SCL line, aren't you?
It could be that the pullups values are too low and the receiver can't drive low the lines. Use a bigger pullup resistor, 10k.
> When I set your Arduino Mega as a virtual receiver, if I turn on the RP2040 first and then the Arduino Mega, the LED inside the RP2040 will blink....
Connected rp2040 to receiver: If you disable all sensors in msrc, can you still read the byte request from the receiver with the oscilloscope?
> > This is what I get fron arduino mega when rp2040 is not connected: > >  > > I expect to see the same from the hitec receiver...
See this [article](https://techoverflow.net/2021/12/06/diagnosing-i2c-issues-using-an-oscilloscope-slow-rising-edge-fast-falling-edge/) Try with different pullups to check for a better signal quality. This seems to be the issue.