We have a Simultaneous RFID Tag Reader from SparkFun, however it doesn’t output anything to the serial monitor when mounted on an Arduino UNO and running the Example 1_Constant_Read. The only thing it outputs is at the start of the code running ‘a.⸮pxez⸮’ or just ‘a.⸮’. It is simply sitting on a normal Arduino UNO, and we know that the UNO works fine as we have tested it on two separate Arduino UNOs, both confirmed to work with other sensors and programs. Are we missing something? We have the correct Arduino Libraries installed.
This looks like a wrong speed setting in the serial monitor. The example1 sets the speed to 115200, make sure your serial monitor is set that as well (bottom right). Also make sure that the switch on-top is set to SW-UART and the Nano soldering is NOT touching the USB housing of the Nano.