Programme RFM69 to listen to HCS301

Create some code in C or C++ to run on a microprocessor of your choice (if you don't have a preference then use the ESP32) that will enable it to interface with an RFM69HCW module over SPI in order to receive and decode RF signals sent from an HCS301 chip using 868MHz FSK. Success criteria: A setup where a console attached to the microprocessor can show messages differentiating which of two buttons attached to different inputs on the HCS301 has been pressed with only a RF connection between the HCS301 circuit and the RFM69/microprocessor circuit. Alternatively LEDs attached to the microprocessor can be used to differentiate the buttons. Partial success criteria: None - the project will not be accepted unless the full success criteria are met. Resources available: * Datasheets for the RFM69 and HCS301 are attached. * We can provide a C++ wrapper of the ESP32 SPI master API described here ([login to view URL]) to the successful bidder. * C++ code to decrypt the received data can be provided once you have shown that you can correctly receive the encoded data bits. * If you cannot create the HCS301 circuit yourself then we can provide it fully assembled for a £50 deposit, refundable when we receive it back, but postage in both directions will come out of your fee unless you come and pick it up from our addresses in the UK or France.