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Add Radiomaster Bandit, Radiomaster Bandit Nano support #1506

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@gjelsoe gjelsoe commented Jan 28, 2026

This PR adds support for Radiomaster Bandit and Bandit Nano.
It also includes UI Helper for the Joystick that both versions have.

Shared Hardware

  • ESP32-D0WDQ6 + SX1276 LoRa (900MHz)
  • Skyworks SKY66122 PA (100mW-1000mW, DAC-controlled)
  • Analog 5-way joystick

Power Amplifier Control

  • Linear interpolation between calibration points for smooth 20-30 dBm output
  • Automatic calculation of SX1278 power + DAC voltage for target output
  • 4-point manufacturer calibration table

Radiomaster Bandit only

  • SH1115 OLED display (Custom Adafruit_SH110x fork)
  • 6x Neopixels (Data PIN 15)
  • 2x Free buttons with backlight (Neopixel index 0 & 1)
  • User-definable TX LED color (RGB hex format) (-DTX_LED_COLOR=0x009600)
  • User-definable message notification color (RGB hex format) (-DNEW_MSG_LED=0x0000FF)

gjelsoe added 13 commits January 22, 2026 12:50
@gjelsoe
Radiomaster WIP
704ed3c 
Radiomaster Bandit and Bandit Nano WIP
@gjelsoe
Misc. changes
b4b9368 
Rewrote Power output functions
Added support for the 5-Way analog joystick.
@gjelsoe
Small changes
15e17fd 
Moved Serial.printf() to MESH_DEBUG_PRINT() for setting output power errors.
MomentaryButton is removed, not used any longer.
@gjelsoe
KEY_NEXT and KEY_PREV fix
ac7b8da
@gjelsoe
SH1115 Display
d075727
@gjelsoe
Misc changes
77c6e07 
SH1115 Display driver
Basic Neopixel support for TX. (needs more work)
@gjelsoe
Update platformio.ini
51fc45c
@gjelsoe
Update to AnalogJoystick
913df64 
KEY_SELECT wasn't always detected.
@gjelsoe
Update target.cpp
921fac7 
New AnalogJoystick
@gjelsoe
Update BanditNanoBoard.h
1ea6254 
Simplify fake battery report.
@gjelsoe
Updates.
308c1cc 
Simplify fake battery report.
Configurable TX and New MSG color.
Added notes on how to use the color defines for TX and New MSG. (claude.ai)
Moved some defines from BanditBoard.h to platformio.ini and visa versa.
@gjelsoe
Update platformio.ini
993c667 
Added some notes and removed unused stuff.
@gjelsoe
Update UITask.cpp
229f735
@gjelsoe gjelsoe changed the title Radiomaster Bandit, Radiomaster Bandit Nano support Add Radiomaster Bandit, Radiomaster Bandit Nano support Jan 29, 2026
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@gjelsoe