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MQ135 Air Quality Sensor module can be easily interfaced with Microcontrollers
to prevent cardboard
Product Name: Inductive Proximity Switch
Shaft Type: Knurled
the switch is a button which you may use with a digital input pin of your Micro Controller eg
Current Sensor ACS712 (30A) Non-invasive MQ135 Air Quality Sensor moduleWith this current meter, it is easy to measure the consumption of something, for example, to protect something from too high a current. Connections: 5V GND (earth min ground) Out (analog output voltage) By reading the voltage you can measure the current. This is approximately 66mV A. This version is suitable for currents from 30A to 30A, so the current can be read on both sides from 0 to 30A. There is an LED on the module that indicates whether the
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