M5Stack GPS/BDS Unit v1.1 (AT6668)
Multi-constellation GNSS positioning unit (GPS, BeiDou, and others) based on the AT6668/ATGM336H family with ceramic patch antenna. Connects to M5Stack Grove PORT.C via UART.
Pinout
- GND1
Ground
Type · Ground - 5V2
5 V supply
Type · Power - UART_RX3
UART receive
Type · Unknown - UART_TX4
UART transmit
Type · Unknown
| Pin | Position | Type | Function |
|---|---|---|---|
| GND | 1 | Ground | Ground |
| 5V | 2 | Power | 5 V supply |
| UART_RX | 3 | Unknown | UART receive |
| UART_TX | 4 | Unknown | UART transmit |
Pin details
4 connections- GND1
Ground
Ground - 5V2
5 V supply
Power - UART_RX3
UART receive
Unknown - UART_TX4
UART transmit
Unknown
Start wiring
UART · I2C · USB · 3.3 – 5 V · Breakout
Verify supply voltage and logic levels before powering up.
Module pins: 5V, GND. Schematik maps them to your board in the app.
GNSS & GPS
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