Extend physical cockpit with a functional COM radio panel and Push-To-Talk button.
Hardware (reference build):
7-segment display for active/standby frequency
Dual rotary encoders — coarse/fine frequency tuning (1 MHz / 25 kHz steps)
PTT button integrated in flightstick (5-way joystick, thumb)
ESP32 — frequency state + PTT as HID button
Software:
OpenSim receives active COM frequency
PTT triggers simulated ATC / ATIS audio
Frequency range: 118.000 – 136.975 MHz
Swap active/standby toggle button
Why:
Radiotelephony is a core PPL(A) requirement. Practicing frequency management and PTT discipline on physical hardware builds real muscle memory.
Context:
PTT lives on the flightstick thumb — exactly as in a real Cessna 172.
Extend physical cockpit with a functional COM radio panel and Push-To-Talk button.
Hardware (reference build):
7-segment display for active/standby frequency
Dual rotary encoders — coarse/fine frequency tuning (1 MHz / 25 kHz steps)
PTT button integrated in flightstick (5-way joystick, thumb)
ESP32 — frequency state + PTT as HID button
Software:
OpenSim receives active COM frequency
PTT triggers simulated ATC / ATIS audio
Frequency range: 118.000 – 136.975 MHz
Swap active/standby toggle button
Why:
Radiotelephony is a core PPL(A) requirement. Practicing frequency management and PTT discipline on physical hardware builds real muscle memory.
Context:
PTT lives on the flightstick thumb — exactly as in a real Cessna 172.