I have set up serial communication between my Arduino and a sensor stamp.
The sensor stamp in question is Atlas Scientific EC stamp.
The communication uses
RT232 RS232 serial protocol.
The replies I get are often garbled, and after some transmissions the Arduino then falls out of sync, while the sensor board continues transmitting data.
Some people have recommended installing a bypass capacitor.
What is the right position and size for a bypass capacitor in my setup?
The board and Arduino have common 5V and GND, while TX and RX pins are crossed.