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VCC For 5v if use with 5v level system Such as ( Arduino UNO
You need to train the module first before recognizing any voice command
Light dependent resistor (LDR) or cadmium sulfide (CdS) whose resistance is inversely dependent on the amount of light falling on it is known by many names including the photo resistor
SparkFun 16 Output I/O Expander Breakout - SX1509 can also act as a level shifter to connect a microcontroller running at one voltage level to a component running at a different voltage level
When the other enable input is LOW the addressed output will followthe state of the applied data
Temperature Sensor Module (LM35DZ) 74164 VCC For 5v if useIntroduction : The LM35 series are precision integrated circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM35 thus has an advantage over linear temperature sensors calibrated in Kelvin, as the user is not required to subtract a large constant voltage from its output to obtain convenient Centigrade scaling. The LM35 does not require any external calibration or trimming to provide
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