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to provide power supply during power down
TIP41 (NPN)
symmetrical output characteristics
Security: Authentication and encryption
The 8x8 Dot Matrix Display module consists of the 8x8 LED matrix display and the MAX7219 driver IC connected to it
MQ-7 Gas Sensor Module for Carbon Monoxide M20 to provide power supply duringMQ7 Gas sensor is another one of Metal Oxide Semiconductor (MOS) type Gas Sensor of MQ Gas Sensors family involving MQ 2, MQ 4, MQ 3, MQ 8, MQ 135, etc. It is mainly used to detect Carbon Monoxide. This sensor contains a sensing element, mainly aluminum oxide based ceramic, coated with Tin dioxide (SnO2), enclosed in a stainless steel mesh. Whenever CO gas comes into contact with the sensing element, the resistivity of the element changes. The change
