Little Bird
Gyroscope and accelerometer in one
This compact MPU-6050 module combines a MEMS accelerometer and MEMS gyroscope in a single chip for detecting movement, tilt and rotation across the X, Y and ...
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This compact MPU-6050 module combines a MEMS accelerometer and MEMS gyroscope in a single chip for detecting movement, tilt and rotation across the X, Y and Z axes.
Each channel is captured with 16-bit analogue-to-digital conversion, allowing the module to read the accelerometer and gyro axes at the same time. It communicates using the standard IIC protocol and has 2.54mm pin spacing for straightforward connection in maker projects.
Specifications:
- Sensor type: MPU-6050 module (three-axis gyroscope + triaxial accelerometer)
- Pin spacing: 2.54mm
- ADC: 16bit AD converter-chip, 16-bit data output
- Chip: MPU-6050
- Power supply: 3-5v (internal low dropout regulator)
- Communication: IIC communication protocol standard
- Gyro range: ± 250 500 1000 2000 ° / s
- Acceleration range: ± 2 ± 4 ± 8 ± 16g
- PCB finish: Using Immersion Gold PCB, welding machines to ensure quality
- Size: 2 x 1.6 x 0.1mm
Typical applications include motion sensing games, augmented reality, electronic image stabilisation (EIS), optical image stabilisation (OIS), zero-touch gesture user interfaces, pedestrian navigation and gesture shortcuts.
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- Gyroscope
- A gyroscope measures rotation, such as how fast a board is turning around its X, Y, and Z axes. This matters for projects like gesture controls, balancing robots, and motion tracking where tilt or rotation changes need to be detected.
- low dropout regulator
- A voltage regulator (LDO) that maintains a steady output even when the input voltage is only slightly above the output. When a board includes an LDO, it can often run from a wider or lower supply range, such as 3-5 V, without needing a separate external regulator.
- MEMS accelerometer
- A tiny motion sensor made using micro-electromechanical systems technology that measures acceleration and tilt. In a compass module, it helps correct the heading when the board is not perfectly flat.
- MEMS gyroscope
- A MEMS gyroscope is a tiny motion sensor made using micro-scale mechanical parts on a chip. It lets a small, low-power module measure rotation without needing a large mechanical gyro, which is useful for compact electronics projects.
- MPU
- MPU can refer to a few different things in electronics: a microprocessor unit (a processor powerful enough to run a full operating system such as Linux, with external memory and storage), a motion-processing unit like the MPU-6050 or MPU-9250 inertial sensor modules, or a memory protection unit built into some microcontrollers. The intended meaning depends on the surrounding context.
- MPU-6050
- A combined motion-sensing chip that includes a 3-axis accelerometer and a 3-axis gyroscope. The exact chip name matters because it determines the available ranges, data format, and example code or libraries you can use.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
Find this product in
Sensors & Input
Code Examples
Sample code to get started with this product
Read all six axes over I2C with the Wire library (defaults: +/-2 g, +/-250 deg/s) and print to the Serial Monitor.
#include <Wire.h>
const int MPU = 0x68; // MPU-6050 I2C address (AD0 tied low)
void setup() {
Serial.begin(115200);
Wire.begin();
Wire.beginTransmission(MPU);
Wire.write(0x6B); // PWR_MGMT_1 register
Wire.write(0); // wake the sensor (clear the sleep bit)
Wire.endTransmission(true);
}
void loop() {
Wire.beginTransmission(MPU);
Wire.write(0x3B); // start at ACCEL_XOUT_H
Wire.endTransmission(false);
Wire.requestFrom(MPU, 14, true); // 6 accel + 2 temp + 6 gyro bytes
int16_t ax = Wire.read() << 8 | Wire.read();
int16_t ay = Wire.read() << 8 | Wire.read();
int16_t az = Wire.read() << 8 | Wire.read();
Wire.read(); Wire.read(); // skip temperature
int16_t gx = Wire.read() << 8 | Wire.read();
int16_t gy = Wire.read() << 8 | Wire.read();
int16_t gz = Wire.read() << 8 | Wire.read();
// Defaults: accel +/-2 g (16384 LSB/g), gyro +/-250 deg/s (131 LSB/(deg/s))
Serial.print("accel g: ");
Serial.print(ax / 16384.0); Serial.print(", ");
Serial.print(ay / 16384.0); Serial.print(", ");
Serial.println(az / 16384.0);
Serial.print("gyro deg/s: ");
Serial.print(gx / 131.0); Serial.print(", ");
Serial.print(gy / 131.0); Serial.print(", ");
Serial.println(gz / 131.0);
delay(500);
}
Read the MPU-6050 over I2C using machine.I2C, with signed 16-bit conversion.
from machine import I2C, Pin
import time
MPU = 0x68 # I2C address (AD0 tied low)
i2c = I2C(0, scl=Pin(5), sda=Pin(4), freq=400000)
# Wake the MPU-6050: clear the sleep bit in PWR_MGMT_1 (0x6B)
i2c.writeto_mem(MPU, 0x6B, b"\x00")
def read_word(reg):
hi, lo = i2c.readfrom_mem(MPU, reg, 2)
val = (hi << 8) | lo
return val - 65536 if val > 32767 else val # signed 16-bit
while True:
ax = read_word(0x3B) / 16384.0
ay = read_word(0x3D) / 16384.0
az = read_word(0x3F) / 16384.0
gx = read_word(0x43) / 131.0
gy = read_word(0x45) / 131.0
gz = read_word(0x47) / 131.0
print("accel g:", ax, ay, az)
print("gyro deg/s:", gx, gy, gz)
time.sleep(0.5)
Read the MPU-6050 over the Pi's I2C bus (enable I2C via raspi-config) using smbus2.
import smbus2
import time
MPU = 0x68 # I2C address (AD0 tied low)
bus = smbus2.SMBus(1) # I2C bus 1 on the 40-pin header
# Wake the MPU-6050: clear the sleep bit in PWR_MGMT_1 (0x6B)
bus.write_byte_data(MPU, 0x6B, 0)
def read_word(reg):
hi = bus.read_byte_data(MPU, reg)
lo = bus.read_byte_data(MPU, reg + 1)
val = (hi << 8) | lo
return val - 65536 if val > 32767 else val # signed 16-bit
while True:
ax = read_word(0x3B) / 16384.0
ay = read_word(0x3D) / 16384.0
az = read_word(0x3F) / 16384.0
gx = read_word(0x43) / 131.0
gy = read_word(0x45) / 131.0
gz = read_word(0x47) / 131.0
print("accel g: %.2f, %.2f, %.2f" % (ax, ay, az))
print("gyro deg/s: %.2f, %.2f, %.2f" % (gx, gy, gz))
time.sleep(0.5)
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