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semi-conductive ink – contained between two thin substrates
This multiple enablefunction allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four '138 ICsand one inverter
Two-wire serial interface
Include Camera OV2640 and can support OV7670 camera (not included)
Thisenables the use of current limiting resistors to interface inputs to voltages in excess of VCC
Hydrogen Sensor Module (MQ8) Digital Temperature Sensor semi-conductive ink – contained betweenIntroduction: This is a simple to use hydrogen sensor, suitable for sensing hydrogen concentrations in the air. The MQ 8 can detect hydrogen gas concentrations anywhere from 100 10000ppm. This sensor has a high sensitivity and fast response time. Detects Hydrogen(H2), poorly sensitive to LPG, alcohol, cooking steam, CO. Features : Main chip: LM393 Working voltage: DC5V Load resistance: 10K Dual signal output (TTL level output and Analog output) TTL