Arduino firmware for WSPR-RX Hardware Version 1
Version 0.41 includes bandpass adjust assist mode but can only be run on Pro Minis with ATMega328 MCUs.
The Version 0.43 dont include the assist nor will future versions. Version 0.43 and upp can be run on both ATMega328 and ATMega168
The I2C scanner is only for troublesshooting. dont use as it will disable reception on your receiver.
//Harry