zzh Stick
Available from the Electrolama ShopBuy zzh
zzh—short for zig-a-zig-ah!—is a compact USB radio development board built around the Texas Instruments CC2652R wireless microcontroller. It combines the radio, a CH340 USB-to-serial bridge, a removable antenna connection and access to the device's bootloader and debug interface.
Hardware
- Texas Instruments CC2652R wireless microcontroller
- CH340 USB-to-serial bridge
- External antenna connection
- Active-low BSL button on
DIO_13 - Five-pin cJTAG/debug connector
- User-visible test/status LED
The USB-to-serial bridge presents the CC2652R UART to the host. This makes the board suitable for TI ZNP coordinator firmware, stand-alone router firmware and general CC2652R development.
Bootloader and debug access
The ROM serial bootloader is entered by holding the BSL button while applying power. The compact debug connector exposes the cJTAG signals; the adapter design in the project repository converts it to a standard 10-pin Cortex connector.