Board

AirLeak Pro is a two-processor design. One processor is the brain, it runs Bluetooth and all the app logic, and it manages GPS, storage and power. A second, dedicated processor is a pure Wi-Fi radio, covering both the 2.4 GHz and 5 GHz bands. The two work in parallel so neither has to wait on the other. For why the design is split this way, see Why two processors.

Antennas#

Each radio module carries its own external antenna connection, one for the Bluetooth and main-processor radio, one for the dual-band Wi-Fi radio. Keeping them separate is part of what lets both radios run at full strength at once.

Status light and switch#

A single colour status light shows power, activity and charge state. A slide switch cuts power fully when you are done, there is no soft standby to drain the cell.

USB-C#

The USB-C port charges the cell and, when needed, reaches both processors for a factory flash. Day to day you never need it for control, everything runs over Bluetooth from the app.

Programming & debug headers#

Each processor has its own 6-pin programming header (2×03, 2.54 mm) with an auto-reset circuit, so a USB-serial adapter can flash it in one click. You only need these for firmware recovery or development — normal use is entirely over the app.

MCU-select switch (older batches)#

Older AirLeak Pro batches carried a small 2-way DIP switch to choose which processor is active. Set both actuators the same way: