AUX-Pwr 65¶
Overview¶
The Auxspace e.V. AUX-Pwr 65 PCB is the power management board of the AUX-Stack, a modular avionics stack made up of interconnected PCBs. It has no MCU of its own: it plugs onto a “brain board” (e.g. AUX-Core) via an AUX-Stack data connector and is driven over I2C, as a Zephyr shield.
Warning
AUX-Pwr is still under active hardware bring-up.
Hardware¶
TI TCA9534 8-bit I2C GPIO expander
TI INA219 current/power monitor
Connections and IOs¶
AUX-Pwr attaches to the aux_data_i2c bus alias exposed by its brain
board’s AUX-Stack data connector. It therefore only works on boards that
define that alias — currently AUX-Core (core65).
Device |
I2C address |
Node |
|---|---|---|
TCA9534 GPIO expander |
|
|
INA219 current/power monitor |
|
|
Usage¶
As a shield, AUX-Pwr is not a west build -b target on its own. Instead it
is layered on top of a brain board build with --shield pwr65, e.g. for the core65 board:
west build -p -b core65/esp32s3/procpu --shield pwr65 --sysbuild sensor_board