Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Chip Model | ADXL345 |
| Communication Interface | I2C / SPI |
| Operating Voltage | 3.3V - 5V |
| Measurement Range | ±2g, ±4g, ±8g, ±16g |
| Resolution | 13-bit |
| Output Data Rate | 0.1 Hz to 3200 Hz |
| Power Consumption | 40uA in measurement mode |
| PCB Dimensions | 22mm x 17mm |
| Weight | 3.5 grams |
| Mounting Type | Through-hole with header pins |
Anonymous
Mar 30, 2026
Rating: 4/5
Good value, needs calibration
Solid build quality. Out of the box, it needed some offset calibration, but once tuned, it provides stable data for my DIY drone stabilization system.
Anonymous
Mar 29, 2026
Rating: 4/5
Compact and sensitive
Very small footprint which helped in my compact robot design. It is quite sensitive to vibration, so ensure you mount it securely to avoid noise in readings.
Anonymous
Mar 28, 2026
Rating: 5/5
Perfect for Arduino Projects
This sensor works flawlessly with my Arduino Uno. The I2C library is easy to use, and the tilt angle calculations are surprisingly accurate for the price point.
Anonymous
Mar 26, 2026
Rating: 5/5
Reliable batch purchase
Ordered ten units for our makerspace. All of them worked immediately. The voltage regulator on the board makes it safe to use with 5V logic levels.
Anonymous
Mar 20, 2026
Rating: 5/5
Excellent I2C implementation
The address selection pin works as expected, allowing multiple sensors on the same bus. Data consistency is high, and power draw is minimal.
Anonymous
Mar 17, 2026
Rating: 5/5
Great for learning embedded systems
Bought this for a university project on motion tracking. The documentation online is extensive, and the SPI interface speed is excellent for real-time data logging.
Q: Does this come with header pins soldered?
A: Yes, the module typically comes with the 2x4 pin header pre-soldered, ready for immediate use with breadboards or jumper wires.
Q: What is the maximum sampling rate achievable via SPI?
A: While the sensor supports up to 3200 Hz output data rate, the actual speed via SPI depends on your microcontroller's clock speed and code efficiency, but it can easily handle the max sensor rate.
Q: Is there a built-in voltage regulator?
A: Yes, the board includes an LDO regulator that allows you to power the module with anywhere from 3.3V to 5V without damaging the ADXL345 chip.
Q: Can this module be used directly with a Raspberry Pi?
A: Yes, the GY-291 operates at 3.3V logic levels which are compatible with Raspberry Pi GPIO pins. You can connect it via the I2C pins (SDA/SCL).
Q: Can I measure vibration frequencies with this?
A: Yes, by setting the output data rate high enough (e.g., 3200 Hz), you can capture vibration data. However, for very high-frequency industrial vibrations, a specialized piezo sensor might be more suitable.
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