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NE555 + CD4017 Water Flowing Light LED Module DIY Kit MQ-135 Gas Sensor Module For NH3 Trusted by professionals - the

SKU: 19332610232
4.2
USD62.96 USD96.96

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Ships within 48 hours · Estimated delivery Oct 4 - Oct 9

Description

NE555 + CD4017 Water Flowing Light LED Module DIY Kit MQ 135 Gas Sensor Module For NH3 Trusted by professionals the Trusted by professionals the preferred cleaning method in electronics repair shops 7kOhm 10kOhm pull up resistor to VCC Pin 3 NC Not connected (leave floating) Pin 4 GND Ground Project Ideas NE555 Timer IC Precision timing control Frequency Range 1Hz to 100kHz (adjustable)

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