This board is based on latest TDK IMU ICM20948 and BOSCH precision pressure sensors BMP581 and uses SPI interface accommodating a sampling rate exceeding 1000 samples per second.
| Item | Quantity at Purchase | Costs | Source | Cost per Brick |
|---|---|---|---|---|
| Microcontroller | 1 | $17.5 | Adafruit | $17.5 |
| Display | 5 | $13 | Amazon | $3 |
| Button | 25 | $9 | Amazon | $0.5 |
| Battery | 1 | $10 | Adafruit | $10 |
| PCB | 5 | $45.20 | PCBWay | $9 |
| Parts and Assembly | 2 | $51.87* | PCBWay | $26 |
| Assorted Wires | 8m | $15 | Amazon | $1 |
| Assorted Screws and Nuts | 100 | $7 | Amazon | $0.05 |
| Assorted 3D printed parts | $3 | |||
| Total | $70 |
*Electronic components are $11 per board.
Test software is located in the Arduino folder.
| Folder | Description |
|---|---|
| MediBrick_IMU_ICM20948_DMP_Test | IMU with onboard attitude calculation. |
| MediBrick_IMU_P_BMP581_Interrupt | Pressure sensor with interrupt. |
Not finalized yet
The following files are needed for PCB manufacturing and assembly.
The Bill of Materials is formatted so that its compatible with PCBWay submissions.
These are the links to the OnShape Design files, which you can edit and modify if you have an OnShape account (OnShape has free academic accounts).
- Medi Brick