Description
3-Axis Compass module, a member of twig family uses I²C based Honeywell HMC5883L digital compass. This ASIC is equipped with high resolution HMC118X magneto-resistive sensors and a 12-bit ADC. It provides compass heading accuracy up to 1° to 2°. Signal conditioning like amplification, automatic degaussing strap drivers and offset cancellation are inbuilt. This twig module also includes a MIC5205-3.3 for power supply requirement. Hence user can connect any 3.3V to 6V DC power supply.
Schematic
Board
Bill of Materials
| Designator | Value | Description |
|---|---|---|
| C1 | 10uF | |
| C2 | 4.7uF | |
| C3 | 0.22uF | CAPACITOR, American symbol |
| C4 | 10uF | |
| C5 | 100nF | |
| INT | ||
| J2 | TWIG_2.0DD'DD' | |
| Q1 | BSN20 | |
| Q2 | BSN20 | |
| R1 | 4.7k | |
| R2 | 4.7k | |
| R3 | 4.7k | |
| R4 | 4.7k | |
| TWIG2 | TWIG-U1 | |
| U$1 | TWIGLOGOTWIGLOGO_SMALL | |
| U1 | ||
| U2 | MIC5205_2.5 |
[JSON]
Files
| .solderpad/ | |
| I2C 3-axis Compass.brd | 29.2 KB |
| I2C 3-axis Compass.sch | 103.3 KB |
This project is published under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported licence.