Surface 2 channel RC transmitter

Hardware includes nRF24L01+ transceiver and ATmega328P processor with an OLED screen.

Telemetry monitors receiver voltage and "fake" RSSI (the nRF24L01+ transceiver does not contain real RSSI and is only a rough counting of lost packets).

This RC transmitter works with RC receiver from my repository RX_nRF24_Stanek.

The code is Arduino.

The firmware includes

• Two proportional channels 1000us -> 2000us
• Adjustable left and right endpoints 0 -> 100% (+-500us)
• Adjustable sub-trims +-100us
• Adjustable exponential curves in steps 1 -> 9
• Channel reverse
• Calibration of potentiometers
• Memory for 10 models
• Five character model name
• RX voltage telemetry
• Deleting all saved data (out of calibration)

Arduino pins

A0 - joystick 1
A1 - joystick 2

D2 - button Up/Prev
D3 - button Down/Next
D4 - button Menu/Select
D5 - button Exit

A7 - input TX battery

OLED I2C:
A4 - SDA
A5 - SCL

nRF24L01+:
D9  - CE
D10 - CSN
D11 - MOSI
D12 - MISO
D13 - SCK