A small project to emulate a PPM using AtMega8 controlling a MAX7219 and driving LED segment displays. The peak LED decays at about the same velocity as a moving coil meter version
The picture is of the code being tested on a stripboard using an UNO prior to burning it to the Mega8. The stripboard design is slightly different to the schematic as I ditched the resistor bias of the AC signal in favour of diode bias/protection on the final design.
PPM_v5.ino (7.43 KB)
PPM v1.pdf (35.2 KB)