My new Remote Control box for the F7, Tender, NB1, and Mikado (in Push mode).
Wired versions have a 4-wire full-duplex UART interface operating at 9600 baud.
Note: Some switches are dual function. So 8 switches provide 12 inputs.
Internally there is a stack of two circuit boards. The switch/LED board,
and a cheap CPLD board that provides the logic functions.
Radio versions include an RFM69 radio module missing from this board as well as
The switch/radio board simply plugs onto the CPLD board.
The Apply/Release and the Forward/Reverse switches are momentary center-off.
LEDs are left-to-right, Red, Orange, Yellow, Green, Blue, and Violet, and indicate
Note: The ribbon wire seen here is only conveying 4 lines: +3.3v, GND, RX, and TX.
The CPLD board can be purchased from places like Amazon. The other board is custom