This situation is driving me crazy.
I have an accelerometer which communicates with the arduino through I2C.
I put together some jumper wires in a total of 1.40m, and I had no problem at all in the I2C communication with the arduino.
However, if I use one single cable (with 4 wires), with approximately 1m, to connect the accelelometer to the arduino, there is no communication.
I have tried everything, replace the single cable, replace the headers, solder the cable directly to the accelelometer, check if the solder is done properly, etc.
What is wrong?