Quick Start

1. Install Arduino IDE 2.x
2. Select Board: Arduino UNO R4 Minima
3. Upload Blink

Pin references

• Servo D9 • Fan D10 • HC‑SR04 TRIG D4 / ECHO D7 • DHT11 D8 • NeoPixel D5 • LDR A0 • Pot A1 • Buzzer D11 • Button D12 • Switch A3 • LED D3