Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Chip Model | ADXL345 |
| Operating Voltage | 3.3V - 5V |
| Communication Interface | I2C / SPI |
| Measurement Range | ±2g, ±4g, ±8g, ±16g |
| Resolution | 13-bit |
| Output Data Rate | 0.1 Hz to 3200 Hz |
| Power Consumption | 40 µA in standby mode |
| PCB Dimensions | 22mm x 17mm x 3mm |
| Mounting Holes | 4 x 3mm diameter |
| Weight | 2.5 grams |
Anonymous
Mar 27, 2026
Rating: 5/5
Perfect for Arduino projects
This sensor module works flawlessly with my Arduino Uno. The I2C connection was easy to set up, and the library support is excellent. Great value for the price.
Anonymous
Mar 20, 2026
Rating: 4/5
Solid build quality
The PCB looks well-made with clear labeling for pins. Only giving 4 stars because the included header pins were slightly bent upon arrival, but easily straightened.
Anonymous
Mar 19, 2026
Rating: 5/5
Compact and reliable
Small form factor makes it easy to integrate into tight spaces. I used it for a self-balancing robot prototype, and it performed consistently over several hours of testing.
Anonymous
Mar 19, 2026
Rating: 5/5
Exceeded expectations
Very responsive to movement changes. The ability to switch between different g-ranges via software is a huge plus for versatile applications.
Anonymous
Mar 17, 2026
Rating: 4/5
Good accuracy, slight noise
The tilt angle readings are quite accurate after calibration. I noticed a little bit of noise in the raw data, but a simple moving average filter fixed it right up.
Anonymous
Mar 05, 2026
Rating: 5/5
Great for learning embedded systems
Bought this for my university project on motion sensing. The documentation online is plentiful, and the SPI mode offers faster data retrieval when needed.
Q: Does this module come with header pins soldered?
A: No, the module is shipped without header pins soldered to allow for flexible mounting options. You will need to solder them yourself if required.
Q: Does it support interrupt outputs for freefall detection?
A: Yes, the ADXL345 chip supports programmable interrupts for events like freefall, activity, and inactivity. These are accessible via the INT1 and INT2 pins on the module.
Q: Is there a built-in regulator on the board?
A: Yes, the GY-291 module includes an onboard voltage regulator, allowing you to safely power it with anywhere from 3.3V to 5V.
Q: What is the default I2C address?
A: The default I2C address for the ADXL345 on this module is usually 0x53. However, some variations allow changing this via the CS pin configuration.
Q: Can I use this directly with a 5V Raspberry Pi GPIO?
A: While the module supports 5V input voltage, the logic level for I2C/SPI is typically 3.3V. We recommend using a logic level converter when connecting to a 5V system to ensure safe communication.
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