in terms of hardware, the goal is to use out of the box modules. PCBs, dsicrete components (HMD, SMD,..) and soldering are not scope of this porject, even if costs could be decreased significantly.
The current "goto" platform for this is the "M5STACK", since this platform provides lots of on board I/Os and extension modules necessarry for the required inputs.
https://m5stack.com/collections/m5-core/products/fire-iot-development-kit
- WiFi
- BLE
- Microphone
- TF Card reader
- Battery
- Gyro / Accelerometer
- ...
see - https://docs.m5stack.com/#/en/core/m5go?id=specification
- Expansion HUB
- Light sensor
- RGB Color sensor
- GPS
| Item | Qty | Price / Qty | Shop |
|---|---|---|---|
| M5Stack PSRAM 2.0 FIRE IoT Kit | 1 Pc | 48,51 € | Banggood.com |
| M5Stack GPS Module | 1 Pc | 12,35 € | Banggood.com |
| M5Stack Light Sensor 3 Pc Kit | 2 Pc | 9,17 € | Banggood.com |
| M5Stack Light 1-6 Expansion | 1 Pc | 7,18 € | Banggood.com |
TOTAL costs aproximatly: 86,38 € w/o shipping