Original GroundStudio Product

GroundStudio products are built using high-quality components and are designed and assembled in Romania.

Product Description:

Module based on the ICM-20948 IC, suitable for motion detection using a 3-axis gyroscope, a 3-axis accelerometer, and a 3-axis compass. It allows easy I2C connection via the I2C_3V3 connectors.

Technical Specifications:

Supply voltage: 1.8 V or 3.3 V

3-axis gyroscope, programmable range: ±250 dps, ±500 dps, ±1000 dps, and ±2000 dps

3-axis accelerometer, programmable range: ±2 g, ±4 g, ±8 g, and ±16 g

3-axis magnetometer: ±4900 µT

Dimensions: 24.6 × 26.4 mm

Interface: I2C

*The datasheet for the ICM-20948 component is available as a PDF in the DOWNLOADS section.

Connection Example Arduino IDE:

To follow this example, you will need:

1× GroundStudio Marble Pico development board || Reference RLJDMV_GS

1× ICM-20948 9-DOF module GroundStudio || Reference LNGSZO_GS

1× SH-4P I2C 3V3 cable compatible with QWIIC/STEMMA

Step 1 – Download the Arduino IDE.

Arduino IDE

Before connecting the board, download Arduino IDE 1.8.x from the link above, according to your preferences and operating system.

Step 2 – Connect the Marble Pico board to the computer.

Make sure the board is in Boot (programming) mode by following these steps:

1. Press and hold the button labeled "B" on the development board.
2. Press and release the RESET button (labeled "R" on the board). At this moment, in Device Manager under "Ports," a new device will appear: "USB Serial Device" followed by a COM number. The microcontroller is now in programming mode.
3. Release the button labeled "B".

After entering Boot mode, an up-to-date version of Windows will automatically detect and install the required driver.

In Device Manager it will appear as RP2 Boot, as shown below:

Step 3 – Make the required settings in the Arduino IDE.

To install the RP2040 boards package, copy the following link into the "Additional Boards Manager URLs" field in the File → Preferences menu:

https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json

Click OK, then in Tools → Board → Boards Manager... search for and install the latest version of "Raspberry Pi Pico/RP2040 by Earle F. Philhower, III".

To select the board, go to "Tools", then click Board → Raspberry Pi RP2040 Boards and make sure Raspberry Pi Pico is selected.

Next, tell the Arduino IDE which serial port your development board is connected to. Go again to "Tools", then hover over Port and select the Marble Pico board’s UF2 port.

WARNING: the development board must be in Boot mode (Step 2) to be detected as a UF2 device.

Step 4 – Install the library

From the Tools menu select Manage Libraries... and in the window that appears search for and install the SparkFun ICM-20948 Arduino Library.

Step 5 – Program the development board.

Go to File → Examples → SparkFun 9DoF IMU Breakout – ICM 20948 – Arduino Library → Arduino → Example1_Basics.

After uploading the code and connecting the sensor to the development board through the I2C_3V3 ports, the values sent by the sensor will be displayed in the Serial Monitor.

Package Contents:

1× ICM-20948 9-DOF module GroundStudio

1× 1×4 male pin header, vertical

1× 1×9 male pin header, vertical

WARNING: The included pin headers are not soldered, and we do not provide soldering services for them.