Expansion Version Notes
Overview
The GNSS function of T-Display SF32 is located on the keyboard expansion module. It is not a standalone GNSS function integrated on the T-Display SF32 main board. To use the L76K multi-constellation GNSS function, make sure the corresponding keyboard expansion module is installed.
Keyboard Expansion Module
The keyboard expansion module adds physical keyboard and positioning-related functions to T-Display SF32. It is suitable for handheld input, location logging, IoT nodes, outdoor communication, and portable data collection.
Key Features
- L76K multi-constellation GNSS, supporting GPS, GLONASS, BeiDou, and QZSS
- 8×8 matrix keyboard interface
- TCA8418 keyboard controller
- AW21009 keyboard backlight LED driver
Function Location
| Function | Location |
|---|---|
| SF32LB52X main controller | T-Display SF32 main board |
| 2.16-inch AMOLED display | T-Display SF32 main board |
| SX1262 LoRa | T-Display SF32 main board |
| BHI260AP 9-axis IMU | T-Display SF32 main board |
| BME280 temperature/humidity sensor | T-Display SF32 main board |
| L76K GNSS | Keyboard expansion module |
| TCA8418 keyboard controller | Keyboard expansion module |
| AW21009 keyboard backlight driver | Keyboard expansion module |