This project is a barologger device for stratospheric balloons.
- MCU: STM32F103CBTx; BTE14-07 development board is used (clone of LeafLab Maple Mini)
- Sensor: MS5534
- PC communication: USB (Mass Storage Device emulation)
- Sampling rate: 1 sec
- Pressure range: 10-1100 mBar
- Storage capacity: ~9 hr
- Power up the device without connecting USB.
- After 3 seconds the device starts acquiring data.
- Power off the device
- Connect USB
- The device is detected as a flash drive containing text data log.
- Press a user button (not reset!) for 3 seconds.
- Onboard LED will blink rapidly for several seconds.
- Device is empty
| MCU/BRD Pin | MCU Function | Sensor Function | Sensor Pin |
|---|---|---|---|
| 10/11 | PA0 | SCK | 2 |
| 11/10 | PA1 | DOUT | 3 |
| 12/9 | PA2 | DIN | 4 |
| 13/8 | PA3 | MCLK | 5 |
| GND | 1 | ||
| VDD | 6 |