US$ 34.95
typically ranging from 0
5mm) Emitter Infrared LED (950nm wavelength) Detector Phototransistor Sensitivity Adjustment Onboard potentiometer (10KOhm trimmer) Digital Output TTL level (HIGH/LOW) with threshold adjustment Comparator IC LM393 Dual Comparator Indicator LEDs Power LED (Red) + Signal LED (Green) Current Consumption ~20mA at 5V PCB Dimensions ~32mm x 14mm Mounting M3 mounting hole Connector 4-pin header (VCC
Coding and electronics skills
and server endpoints for your target IoT platform
Sonoff DW1 433mhz Door Magnetic Sensor for Sonoff RF Bridge (Without Battery) High Speed Micro USB OTG Cable - 33 cm typically ranging from 0Sonoff DW1 433mhz Door Magnetic Sensor for Sonoff RF Bridge (Without Battery)
US$ 34.95
US$ 22.00
US$ 34.95
US$ 52.00