This is the firmware for the Rc receiver based on the SX1280 chipset. The hardware design can be found here: Rc Receiver

Project goals

• Handle both receiver and transmitter in one codeline
• FHSS (Frequency Hopping Spread Spectrum) system
• FCC and ETSI EN compliance
• 80 channels (on normal ISM band: 2400 Mhz - 2483.5 Mhz), with 1MHz channel separation
• 100 Hz hopping frequency
• Fixed hopping sequence
• Simple acquisition and tracking between the transmitter and receiver
• No binding process the transmitter and receiver hard-bound together
• Fixed packet length
• Transmitter sends basic control functions
• At least 16; 12 bit channels
• Receiver can also send telemetry data back
  • RSSI (Received Signal Strength Indicator)
  • Receiver battery voltage
  • Built in GPS support
  • Extensible via UART port(s)
• OTA (Over the Air) firmware update

Current status (April 13, 2019)

• The firmware is using both RF modules
• FHSS works
• Acquisition and tracking works
• Communication is only one way at the moment
• (Code is a bit messy, just made it work)