UniversalTransmitter

This is an open-source, Arduino-based handheld transmitter (See demo video here). This handheld transmitter can be used in any robotics application that requires user input (i.e., RC car, RC airplane, robotic arm, etc.) and includes the following features:

• Teensy 4.1 microcontroller
• 2.8" TFT touchscreen
• Lanyard clip
• 1 3.5mm buddy box signal jack
  • Only tested with a Flysky FS-i6X
• 2 RC joystick gimbals
• 8 4.3mm Joystick trim buttons
• 2 general analog knobs
• 5 toggle switches
• 1 tri-state switch
• 1 speaker
  • Can be controlled with a DFPlayerMini or I2S module
  • 1 volume knob
• 2 power supplies
  • Can use battery pack or external power via 5.5mm barrel jack
  • 1 power supply select switch
• 1 ESP8266 ESP-01S WiFi module
• 1 NRF24L01+ 2.4GHz RF module
• 1 BLE or classic BT module slot
• RS485 external interface via 2 RJ45 jacks
  • Can use this to communicate with external serial radios (i.e., RFD900+ modules)
• Channel mixing
• Channel expo
• Channel reversing

For software examples, there is a sketch for testing basic functionality of the various features found at .\examples\example. Additionally, there is a much more complex sketch with advanced software and configuration features found at .\examples\complex_example.

Also, the case is 3D printed (ABS or ASA filament preferred). The 3D parts can be found in the .\extras\print_files folder. If you want to easily remix any of the pieces, you can use a copy of the original Blend file found at .\extras\Universal_Transmitter.blend.

Lastly, the PCBs can be made using the gerber files found at .\extras\gerber_files.