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Support both locked-antiphase and sign-magnitude PWM operation
The RS-232 to TTL converter has an automatic transmission and reception conversion with no delay
The MODULE allows you to achieve this via any of the three methods: Short Message Service
Operating Temperature Range: -40 C to +125 C
allowing the system designer to optimize power consumption versus processing speed
Sound Sensor Module corner Support both locked-antiphase and sign-magnitudeThis sound sensor can identify the presence of sound. The sensor sensitivity can be adjusted by potentiometer. The sound sensor module work like that: when the intensity of the sound can not reach set threshold, the OUT pin will output high level 5 volt ( open ). When the intensity of the sound reach more than the set threshold, the OUT pin will output low level (2. 5 volt). supply voltage range: 3. 3V 5. 3V Comparator IC: LM393 Mic type : capacitive