Tetra hardware

The tetra hardware is based on the Broadcom BCM23550 (referred to as java in the device tree) chipset.

Front of tetra main board

Front of tetra main board NFC antenna removed

Back of tetra main board

Back LCD of tetra

Back cover of tetra

Front

The front of the PCB is covered by a flexible PCB antenna used for NFC. This is connected to the PCB via a U.FL connector.

Removing the NFC antenna reveals the Broadcom SoC and on its left a shield on top of the memory.

The shield with a QR code is covering the BCM43341 Bluetooth/WiFi chip.

Back

The back of the PCB has testpoints, pogo pins and space for an unpopulated connector.