
Three-axis digital output gyroscope breakout using the L3G4200D angular rate sensor with I2C and SPI interface.

I2C header supply rail shown as 3.3V on the Waveshare L3G4200D Board schematic connector P2 pin 1.
Ground reference on the Waveshare L3G4200D Board schematic connector P2 pin 2.
I2C serial data line on the Waveshare L3G4200D Board schematic connector P2 pin 3, tied to the L3G4200D SDA/SDI net.
I2C serial clock line on the Waveshare L3G4200D Board schematic connector P2 pin 4, tied to the L3G4200D SCL net.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| 3.3V | 1 | Power | I2C header supply rail shown as 3.3V on the Waveshare L3G4200D Board schematic connector P2 pin 1. | 3.3 V |
| GND | 2 | Ground | Ground reference on the Waveshare L3G4200D Board schematic connector P2 pin 2. | 0 V |
| SDA | 3 | I2C | I2C serial data line on the Waveshare L3G4200D Board schematic connector P2 pin 3, tied to the L3G4200D SDA/SDI net. | 3.3 V logic |
| SCL | 4 | I2C | I2C serial clock line on the Waveshare L3G4200D Board schematic connector P2 pin 4, tied to the L3G4200D SCL net. | 3.3 V logic |
I2C header supply rail shown as 3.3V on the Waveshare L3G4200D Board schematic connector P2 pin 1.
Ground reference on the Waveshare L3G4200D Board schematic connector P2 pin 2.
I2C serial data line on the Waveshare L3G4200D Board schematic connector P2 pin 3, tied to the L3G4200D SDA/SDI net.
I2C serial clock line on the Waveshare L3G4200D Board schematic connector P2 pin 4, tied to the L3G4200D SCL net.
I2C · SPI · Analog · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: 3.3V, GND, SDA, SCL. Schematik maps them to your board in the app.
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