Altimeter for Flight Simulator

thingiverse

Several options are available with left or right knob featuring one or two windows for Kosslman and a barber pole indication below 10K feet or 16K feet. I utilize several M3 screws and nuts, as well as smaller ones for the knob, encoder, and reinforcement. A 3mm axis and two brass tubes, one measuring 4 mm and the other 5 mm, support the needles' axis. A 2mm axis also accommodates auxiliary gears. Personally, I drill holes in larger gears for optical sensors after mounting everything. The sensor's emitter and receiver are secured with hot glue. The optical sensor components originate from an old mouse - a diode and photo-diode combination. A 24BJY motor is employed, which is smaller than the 28BJY but shares identical connections, offering 0.25 rpm and 4096 half-steps per revolution at a comparable cost to the 28BJY. The motor can be connected to FS X via FS2Link, and the source code for the Arduino is available on this link: https://github.com/alvaroalea/flightsimulator/tree/master/altimetro_v0.2