- IR transmitter for "LEGO" Powerfunctions and trains as well as for "MECCANO" motors
- 2.4GHz radio transmitter for RC cars, helicopters etc.
- 4 analog axes, 2 mode switches (joystick buttons)
- 1 potentiometer for adjustments like the MRSC stability control
- 4 push buttons for transmission mode and vehicle selection as well as menu navigation
- 10 seletcable vehicle addresses, so you can use it for more than one vehicle
- 3.3V, 8MHz Pro Mini (a Pro Micro is not supported anymore due to additional functionality)
- STM32 ARM version see: https://github.com/TheDIYGuy999/RC_Transmitter_STM32
- 2.4GHz NRF24L01 radio module
- Support for 0.96" I2C OLED
- Configuration menu for: Channel direction reversing, servo travel adjustment (independent for each vehicle)
- Configuration values are stored in EEPROM
- NRF24L01+PA+LNA SMA radio modules with power amplifier are supported from board version 1.1
- very compact
- Eagle PCB included
- PONG Game included
New in V 1.3:
- Infrared codes for "MECCANO" IR controlled motors. Separate library required: https://github.com/TheDIYGuy999/MeccanoIr
- Multichannel transmission
New in V 1.4:
- 10 vehicle addresses instead of 5
- The "BACK" button can now be used (if the menu screen is not displayed on the OLED) as a momentary button, for example for a horn on the vehicle. It is sent as "data.momentary1"
- The "A6" potentiometer connector is now integrated in the code and is sent to the vehicle as "data.pot1"
- SimpleTimer library replaced with my own code, which uses significantly less memory
- EEPROM reset function added: press "Select" and "Back" during power on
New in V 1.41:
- Transmitter battery voltage now monitored correctly on 16MHz / 5V systems
New in V 1.42:
- Vehicle battery state change OLED bug fixed
New in V 1.43:
- Radio module sleep mode active while IR mode is in use
New in V 1.5:
- MECCANO IR support enhanced. Requires MECCANO library update to V 1.1
New in V 1.6:
- Buttons locked, if not required in selected transmission mode. This ensures, that no variables can be changed "in background"
- Automatic joystick zero point calibration after transmitter was switched on. This ensures, that you always have precise zero points, even if your potentiometers are not exacltly linear.
New in V 1.7:
- Support for 2 channel car style transmitters with steering wheel
- The transmitter type can be seletced in the new "transmitterConfig.h" file
- The potentiometers in some transmitters hit the mechanical endstop before the end of the electrical range is reached. This can now be compensated with the "range" variable
New in V 1.8:
- In most car style transmitters, the reverse range of the throttle potentiometer is smaller than the forward range.
- The reverse range is now multiplied by 4, to solve this problem
New in V 1.9:
- The "RC_Tester" functionality (https://github.com/TheDIYGuy999/RC_Tester) is now intergrated
- Useful, if you have more than one transmitter. Allows to visualize all 5 analog channels of your transmitter. The radio connection can be easily tested this way.
- Press "Select" during power on. The splash screen shows "Micro RC Tester" instead of "Micro RC Transmitter" and then a graphical screen, which visualizes all analog channels
- Works fo all 10 vehicle addresses
New in V 2.0:
- You have crashed your RC car? Then just play a little PONG session on your transmitter!
- Press "Back" during power on. The transittter is then activating the game mode :-)
- Press the "Back" button again to restart the game after "Game Over" is displayed
New in V 2.01:
- A serious bug in the mapJoystick() function was found during tests with the upcomming STM32 version
- The inverse and scale functionality did not work anymore since V2.0
- The bug is now solved and you can use the adjustments menu again
New in V 2.1:
- 3CH configuration for "car style" transmitter with additional 3 position switch added
- Used for 3 speed gearbox operation, using a single pole, double throw switch, connected to pin A0. Two resistors from A0 to GND and VCC allow 3 servo positions
New in V 2.2:
- 3CH configuration for WLtoys A959 etc. based 3+1CH transmitter (CONFIG_WLTOYS) See pictures below.
- Support for 3 position double throw switches (for gearbox switching etc.) added. Use two identical resistors (ca. 20k) from GND to center pin to VCC across the switch. Define a "CH1Switch" etc. variable., if a switch instead a potentiometer is connected
- New potentiometer calibration variable "reverseEndpoint" allows to adjust the throttle reverse range. Use the "Micro RC Tester" mode on a 2nd transmitter and then adjust the "range" variable as well, until the entire range of all channels is used on the graphical display.
- New "ledInversed" variable allows to use the stock WLtoys LED, which has a red and a green LED in one housing. The common pin is connected to VCC
New in V 2.3:
- 2+2CH configurarion for WLtoys transmitter added (CONFIG_WLTOYS)
- Allows to connect 3 buttons on CH4
- More than 3 buttons would be possible as well, but I ran out of space for more buttons
- Wiring see picture
See pictures
3 buttons wired to CH4
3 position rocker switch wired to CH2 (for 3 speed transmission)
(c) 2016-2020 TheDIYGuy999
