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L3GD20 3-Axis Gyro BOB with Voltage Regulator

JS-1008

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This sensor is a carrier/breakout board for the ST L3GD20 three-axis gyroscope, which measures the angular rates of rotation about the pitch (x), roll (y), and yaw (z) axes. Angular velocity measurements with a configurable range of ±250°/s, ±500°/s, or ±2000°/s can be read through a digital I²C or SPI interface.

Availability: In stock

$24.95
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$24.95 (10+) $22.45 (25+) $21.21 (100+) $19.96
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Description:
The L3GD20 is a great IC, but its small, leadless, LGA package makes it difficult for the typical student or hobbyist to use. It also operates at voltages below 3.6 V, which can make interfacing difficult for microcontrollers operating at 5 V. This breakout board addresses these issues by incorporating additional electronics, including a 3.3 V voltage regulator and level-shifting circuits, while keeping the overall size as compact as possible. The board ships fully populated with its SMD components, including the L3GD20, as shown in the product picture.

 

Compared to the L3G4200D, the L3GD20 uses a higher resonant frequency that makes it more resistant to audio noise and vibrations. This board remains pin-compatible with the original L3G4200D carrier, although changes in I²C addresses and configuration registers mean that code written to interface with an L3G4200D might need to be modified to work with an L3GD20.

 

The L3GD20 has many configurable options, including three selectable angular rate sensitivities, a choice of output data rates, an embedded FIFO for buffering output data, and a programmable external interrupt signal. The three angular velocity readings are available through a digital interface, which can be configured to operate in either I²C or SPI mode.

 

The board includes a low-dropout linear voltage regulator that provides the 3.3 V required by the L3GD20, which allows the sensor to be powered from a 2.5-5.5 V supply. The regulator output is available on the VDD pin and can supply almost 150 mA to external devices. The breakout board also includes a circuit that shifts the I²C/SPI clock and data in lines to the same logic voltage level as the supplied VIN, making it simple to interface the board with 5 V systems, and the board’s 0.1″ pin spacing makes it easy to use with standard solderless breadboards and 0.1″ perfboards.

 

Arduino Library for the L3GD20 can be found here.

 

Features:

  • Dimensions: 0.5″ × 0.9″ × 0.1″ (13 × 23 × 3 mm)
  • Weight without header pins: 0.7 g (0.03 oz)
  • Operating voltage: 2.5 to 5.5 V
  • Supply current: 7 mA
  • Output format (I²C/SPI): one 16-bit reading per axis
  • Sensitivity range (configurable): ±250°/s, ±500°/s, or ±2000°/s

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