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So this LED illustrates the relay status by activating the relay & coil through a signal pin
long-press about 3s the start the humidity flashing
Features of Thermal Resistor Temperature Sensor:
Battery includes and lasts for years and only uses power when you erase plus that means that if your battery dies you will not lose your notes
Ir Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module Rpm Sensor 10uf So this LED illustrates theIR Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module. This is a photo Interrupter Sensor for robot speed measuring module which used as motor speed detection and pulse counter. Specification Power: 3. 3V to 5V Dimension: 26. 8mm x 15mm x 18. 7mm Mounting holes size: 3mm Gap width: 6mm In the case of working with a MCU: VCC: 3. 3V to 5V GND: GND DOUT: MCU. IO (digital output) Package included: 1 x Speed Measuring Sensor IR
US$ 824.50
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