50 lines
2.7 KiB
Markdown
50 lines
2.7 KiB
Markdown
|
|
## Microcontroller: STM32G071RB
|
|
|
|
[Source](https://www.st.com/resource/en/datasheet/stm32g071rb.pdf)
|
|
|
|
- 32-bit ARM Cortex-M0+
|
|
- 64 MHz
|
|
- 128 KB of Flash memory
|
|
- 36KB of SRAM
|
|
- I2C, SPI, and UART,
|
|
- Hella low power
|
|
- $3.64
|
|
- 10.51 for a devboard (it has a built-in st-link)
|
|
|
|
## Telemetry: HopeRF RFM98W LoRa Module
|
|
|
|
|
|
- Low-power
|
|
- 0.3 kbps to 37.5 kbps and
|
|
- -148 dBm
|
|
- 10$
|
|
|
|
## Custom Flexible PCB
|
|
Why? Mostly because we can, but it also minimizes the weight and makes the whole thing more rigid and not susceptible to fall damage.
|
|
|
|
|
|
## Sensors
|
|
|
|
|
|
|
|
- BME280 - 5.50
|
|
- Pressure, Humidity, Temperature, Altitude
|
|
- 
|
|
- Accelerometer and Gyroscope: MPU6050 6-axis IMU - €3,75
|
|
- 
|
|
|
|
|
|
|
|
### Estimated** Costs
|
|
|
|
| Description | Quantity | Unit Price (EUR) | Source |
|
|
| ------------------------------------- | -------- | ---------------- | ------------------------------------------------------------------------------------------------------------------------------------- |
|
|
| STM32G071RB | 1 | €3.64 | [STMicroelectronics](https://www.st.com/resource/en/datasheet/stm32g071rb.pdf) |
|
|
| 433 MHz Wireless Transceiver (RFM98W) | 1 | €10 | [TinyTronics](https://www.tinytronics.nl/en/communication-and-signals/wireless/lora/modules/hoperf-rfm98w-lora-module-433mhz) |
|
|
| Custom Flexible PCB (5 pcs) | 1 set | €30 (?) | [JLCPCB](https://jlcpcb.com/resources/flexible-pcb) |
|
|
| BME280 Sensor | 1 | €5.50 | [TinyTronics](https://www.tinytronics.nl/en/sensors/air/pressure/bme280-digital-barometer-pressure-and-humidity-sensor-module) |
|
|
| 6-axis IMU (MPU6050) | 1 | €8.50 | [TinyTronics](https://www.tinytronics.nl/en/sensors/acceleration-rotation/mpu-6050-accelerometer-and-gyroscope-3-axis-module-3.3v-5v) |
|
|
| Standard 9V Alkaline Battery | 1 | €2.00 | [Amazon](https://www.amazon.com/) |
|
|
| | | **€57.64** | |
|