On temporary hiatus
compactPi is a project to develop a compact Raspberry Pi Compute Module carrier suitable for ArduPilot applications. It's primarily targeted at marine applications (ArduSub/ArduRover).
Given that this is a side project for me, I am being very conservative with these milestones. You may also note that it is a pretty long board assembly turn time to keep costs maneagble. Macrofab is the current turnkey vendor planned for use, although the design will target JLPCB & similar low-cost vendors in terms of complexity.
| # | Description | Estimated Time Frame | Status |
|---|---|---|---|
| 1 | Feature freeze | Mid-Feb | On Track |
| 2 | Schematic/layout draft ready for review | Early march | In Work |
| 3 | Gerbers ready for review | End of march | TBD |
| 4 | PCB Tape Out | Mid April | TBD |
| 5 | Board Fab & Build | June/July (assuming 30 day turn for initial prototypes to keep costs maneagable) | TBD |
| 6 | Validation/Verification Complete | TBD | TBD |
| 7 | V1.0 Design File Release | TBD (dependent on how well the first rev does) | TBD |
| # | Description | Value/Units | Notes |
|---|---|---|---|
| 1 | Input Voltage range | 6-25V | 2 independent inputs + USB-C PD option |
| 2 | Mainboard power dissipation | 25W | |
| 3 | Dimensions | 45mm x 105mm | Evaluating options for shrinking length without over-crowding connectors |
| # | Description | Part Number |
|---|---|---|
| 1 | 6 Axis IMU | ICM-20602 |
| 2 | 3 Axis Magnetometer | MMC5983 |
| 3 | 3 Axis Compass | AK09915 |
| 4 | Barometer | BMP280 |
| 5 | ADC | TBD |
| # | Description | Form Factor | Qty | Notes |
|---|---|---|---|---|
| 1 | UART | JST-GH BM06B | 2 | |
| 2 | I2C | JST-GH BM04B | 2 | |
| 3 | SBUS | TBD | 1 | |
| 4 | 5V PWM Quad Out | JST-GH BM06B | 4 | 4 PWM channels per connector, 16 total per carrier |
| 5 | Leak Sensor | JST-GH BM02B | 1 | |
| 6 | ADC | TBD | TBD | |
| 7 | HDMI | HDMI-C | 1 | |
| 8 | Ethernet 10/100 | JST-GH BM04B | 1 | |
| 9 | USB | 1x JST-GH BM04B/ 1x USB-C OTG | 2 | |
| 10 | SD | micro-SD | 1 | |
| 11 | Power | TBD | 2 | |
| 12 | CAN Bus | JST-GH BM04B | 2 |