HM-10 by Huamao Technology; BT Version: V4.0 BLE bluetooth; Firmware: V540; Flash:256Kb
USB Protocol: USB V2.0; Working frequency:2.4GHz ISM band; Modulation method: GFSK(Gaussian Frequency Shift Keying)
RF Power:≤4dBm, Class 2; Sensitivity:≤-84dBm at 0.1% BER; Transmission Rate: Asynchronous: 6 kbps; Synchronous: 6 kbps; Security:
EYE BLINKING SENSOR
This Eye Blink sensor sense the eyeblink using is infrared . The Variation Across the eye will vary as per eye blink . If the eye is closed the output is high otherwise output is low.
This is an Analog Sound Sensor Microphone Module for Arduino. Some Applications like interactive voice switch and loudness level indicator is very suited for this module.
Detectable sound signal size
Built-in filter-rectifier circuit, DC signal output
Good sensitivity, built-in amplifier circuit, adjustable gain