I know these two radios work, because when I skip the Arduino and connect both of them to different computers, they send and receive data without a problem. I’ve tried swapping the RX and TX connections to the Arduino, but to no avail. When it receives data, the red LED is also supposed to flash, right? And the Arduino board is still reading values of -1 from the receiver radio.

However, every time I send data from my computer, the receiver radio doesn’t seem to have any response. You can then read values from those pins.

In the software code, I am using the SoftwareSerial library, which takes two pins on the Arduino and emulates them as a Serial port. Both radios have the solid green light, so I know they are connected.įor the Arduino, I am using the RX and TX pins and connecting them with the same pins on the radio. However, I still cannot get any response from the receiver radio connected to the Arduino. I know the transmitter radio is sending the string data, because every time I hit enter, the red LED lights up briefly.

Finally, the Arduino would perform certain actions depending on the string received. And the receiver radio connected to the Arduino would receive these strings. I have been using the terminal in Mission Planner as well as CoolTerm to send strings via the transmitter radio. I use my computer to send a string via the transmitter radio plugged into the USB port to a receiver radio connected to another Arduino board. Basically, this setup would be a remote control using a pair of 915MHz radios. I have this question for my university project.

Coolterm for windows 10