GPIO Waver is a low-cost STM32F042 (48 MHz) board focused on expansion: it exposes two GPIO headers and little else. It’s ideal for prototyping new EMWaver add-on hardware, and it’s also the base board for modules like RFID Waver. It communicates over USB (no BLE) for Android (USB OTG) and the desktop EMWaver app. Bonus: the native USB stack also enables USB device emulation.
GPIOSTM32F042USB
MCU
STM32F042
Design date
2024-08-24
Reproduction cost
$48 / 5 units
Build files
Open the build resources for this device on GitHub. Exact file links can download directly from the hardware repo; otherwise the buttons open the repo or the relevant build folder there.
Device preview
Historical enclosure and device imagery kept with this hardware entry.
