The original prototype of the radio panel backplane PCB used almost all pins of an Arduino Mega. To get more inputs and outputs available, the authors of SimVim introduced the use of multiplexers for inputs and 7-segment display driver clocks and updated their software so that multiple LED drivers can be daisy-chained for up to … More MCP, EFIS, MIP, SimVim, knobs and the throttle quadrant
In a Boeing 737 NG cockpit a number of concentric shaft rotary encoder / band switch combinations are found, e.g. the Heading / Bank Angle selection combination in the MCP and the MINS and BARO combinations in the EFIS panel. One way to build this combination is to drill a hole completely through the shaft … More Concentric rotary encoder – band switch
After approximately a month the solenoid has arrived (a small drawback to the extremely low prices on aliexpress). But as a cockpit builder there are always other things you can continue with, so I used the time to optimize my drawing in Inkscape and to continue with the throttle quadrant. Similar to the method I … More MCP – autothrottle switch, part 2
The first attempt to convert a simple € 2 toggle switch into a solenoid driven autothrottle switch looks promising. A pocket was milled in an 18mm MDF spoilerboard for stable fixation of the switch housing during CNC milling. Two slots of 1.2 mm were milled at each side of the switch and a small 1 … More MCP – autothrottle switch, part 1
