Code for the DIY smart stick for blind people
| Name | Pin Number | Description |
|---|---|---|
| TRIGGER_PIN | 4 | Ultrasonic sensor trigger |
| ECHO_PIN | 5 | Ultrasonic sensor echo |
| DHT_PIN | 15 | DHT11 temperature/humidity |
| MOISTURE_PIN | 13 | Soil/moisture sensor |
| TX0 | 1 | Serial transmit to micro:bit Pin 0 |
| RX0 | 3 | Serial receive from micro:bit Pin 1 |
Refer to sensorreader.ino for usage details.
- connect esp32 and microbit via serial pins
- read from sensors connected to esp32
- make a processing app that can read from esp32 via bluetooth
- make a graph of speed
- make an emergency signal in case of a fall