ماژول فرستنده و گیرنده مادون قرمز FC-51

Specifications: 

• Working voltage: DC 3.3V-5V
• Working current: ≥ 20mA
• Operating temperature: -10℃~+50℃
• detection distance :2-40mm
• IO Interface: 4-wire interfaces (-/+/S/EN)
• Output signal: TTL level (low level there is an obstacle, no obstacle high