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This is a very common MOSFET with very low on-resistance and a control voltage (gate threshold voltage) that is compatible with any 5V microcontroller or mechanical switch
You can use it to control both DC and AC lines and it also has LED indicators to indicate the state of operation of the module
1pcs Normally Closed Vibration Sensor Alarm Module
the TSL12561 contains two integrating analog-to-digital converters (ADC) that integrate currents from two photodiodes
Infrared Barrier Sensor Module (Obstacle Avoidance) alarm clock This is a very commonThe sensor module light is adaptable to the environment, it has a pair of infrared transmitting and receiving tube, tube infrared emit a certain frequency, when detecting direction meet with obstacles (reflecting surface), reflected infrared receiving tube, after the comparator circuit processing, green indicator will light up, at the same time signal output interface to output digital signal (a low level signal), can be through the potentiometer knob
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