DFRobot 10 DOF
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The DFRobot 10 DOF sensor module contains 4 different I²C sensors:
- Adxl345 accelerometer
- ITG3200 gyro
- HMC5883L Compass
- BMP085 pressure sensor
Each of these sensors will be handled on a separate page but a general overview follows on this page.
Schematics
DFRobot provides schematics for most of their product. The schematic for the 10 DOF board is this:
As can be seen, all four sensors are wired up to the same I²C bus. It's a pity the individual interrupt lines are not wired out to the header as that would have made the board a LOT more usable.
I²C bus
The four sensors show up on the I²C bus like this:
Scan i2c2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1e -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 53 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 77 -- -- -- -- -- -- -- --
| ID | Device |
|---|---|
| 0x1e | HMC5883L Compass |
| 0x53 | ADXL345 Accelerometer |
| 0x68 | ITG3200 Gyro |
| 0x77 | BMP085 Pressure/Temperature Sensor |