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Humidity sensors make use of high-precision capacitive faster chip which has the advantage of high accuracy to reflect
The MPR121 12-Channel Capacitive Touch Sensor Controller Module is a capacitive touch sensor controller driven by an I2C interface
the sturdy stand ensures reliable protection against electromagnetic interference
and the 16MB of flash memory is off-chip to give you extra storage
The SIM800L V2 5V Wireless GSM GPRS module provides power supply compatibility with 5V and can be easily connected to a computer for debugging via USB to TTL serial port
74HC11 Triple 3-Input AND Gate IC (7411 IC) DIP-14 Package (325) DHT22 Humidity sensors make use of74HC11 Triple 3 Input AND Gate IC The 74HC11 is a digital integrated circuit (IC) with three separate 3 input AND gates. It belongs to the 74HC family of integrated circuits, which are high speed CMOS (Complementary Metal Oxide Semiconductor) devices with quick switching rates and low power consumption. The 74HC Series 74HC11 has three inputs and one output for each AND gate. Only if all of the inputs are high is the output (logic 1) high (logic 1).
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