Step 1 of 6
Connect your board
Power on your Beaver Board — the OLED will show a PIN code. Click Connect in the toolbar, choose Connect via Bluetooth, and select your board. If it's your first time, enter the PIN shown on the screen.
The HC-SR04 ultrasonic sensor is already wired to GP16 (TRIG) and GP17 (ECHO) — no extra connections needed.