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This is a low cost digital compass with UART and IIC interface, it's easy to use with external controler like Arduino,IFLAT32.
| Measuring range | 0-360 ° |
| Resolution | 0.1 ° |
| Accuracy | 1 ° |
| Power supply | 3V-5V DC |
| Frequency response | 25Hz |
| Current | 5 V--15mA 3V--8 mA |
| Size | 25.6mm×25.6mm |
Features:
- Small size
- UART or IIC double output/control interface
- 3-5V Voltage compatible
Serial Communication Protocol:
Baud rate: 9600 bps Parity: N data bits: 8 Stop bit: 1
Commands:
- 0x31: the first angle measurement
- 0xC0: calibration of the magnetic field start
- 0xC1: the end of the calibration magnetic field
- 0xA0-0XAA-0XA5-0XC5: Restore default setting
- 0xA0-0XAA-0XA5-IIC_ADDR: IIC address of the module change
- 0x03 + 8bit: Setting the magnetic declination high 8 bit
- 0x04 + 8bit: Setting the magnetic declination low8 bit
Return Data:
- Byte0: 0x0D
- Byte1: 0x0A
- Byte2: 0x30 ~ 0x33 angle of one hundred (ASCII 0 ~ 3)
- Byte3: 0x30 ~ 0x39 angle of ten (ASCII 0 ~ 9)
- Byte4: 0x30 ~ 0x39 angle a bit (ASCII 0 ~ 9)
- Byte5: 0x2E (ASCII code decimal point)
- Byte6: 0x30 ~ 0x39 decimal point (ASCII 0 ~ 9)
- Byte7: 0x00 ~ 0xFF checksum (only lower 8bit)
You can use the Foca or any USBtoTLL module to connect your PC with this module.
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