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  drivers
  
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  switch
  
  buzzer
  
  relays
  
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  power supply
  rail and rack
  
  pully idler and belt
  
  fan
  
  motors
  
  drivers circuit
  
  road
  
  rail and rack
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  - capacitors
  - crystals_osillators
  - pots-7-trimmers
  - opto-coupler
  - LED
  - diodes
  - transistors
  - SCR
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  displays
  
  mosfet
  
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  OP-AMPR
  
  voltage-regulators
  
  amplifier-ic-development-boards
  
  clock-and-timer-ic
  
  data-converter-ic
  
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  driver-circuit-ic
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HomeSENSORSSOUND, VIBRATION AND VOICE SENSORS

SOUND, VIBRATION AND VOICE SENSORS

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Audio Amplifier PAM8302

Output Power: 2.5W at 4, 10% THD, 1.5W at 8, 10% THD, with 5.5V Supply

50dB PSRR at 1KHz

Filterless design, with ferrite bead + capacitors on output.

Fixed 24dB gain, onboard trim potentiometer for adjusting input volume.

Thermal and short-circuit/over-current

Low current draw: 4mA quiescent and 1uA in shutdown mode

450.00Br
450.00Br Add to cart
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MAX9814 Microphone Amplifier

MAX9814 Microphone Amplifier AGC Auto Gain Control

Supply Voltage: 2.7v-5.5v @ 3mA current

Output: 2Vpp on 1.25V bias

Frequency Response: 20Hz – 20 KHz

Programmable Attack and Release Ratio

Automatic gain, selectable max from 40dB, 50dB or 60dB

Low Input-Referred Noise Density of 30nV/

Low THD: 0.04% (typ)

1,250.00Br
1,250.00Br Add to cart
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MP3 Decoder Board

This TF card MP3 decoder board utilises the GPD2856A MP3 decoder IC

It has an on-board 2-watt L/R mixed mono audio amplifier IC (8002).

This module is the updated version of the earlier GPD2846A TF card MP3 decoder board, and in this latest version, there is a TF card slot for a micro-SD memory card, and an LED power indicator.

The board measures 35-mm × 22-mm, and requires only a power supply, direct speaker connection, and switches.

Working Voltage: 3.7V Lithium Battery 600mA or 5V USB Power Supply

Supports MP3 format playback

Supports USB audio mode

PCB Size(LxWxH)mm :35 x 23 x 1

With 2W Mixed Mono

Does not support infrared remote control.

Does not support USB device mode.

400.00Br
400.00Br Add to cart
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MT8870 DTMF Decoder Module

Power Input: 5V Nominal (4.5V – 5.5V)

Onboard 3.5mm jack input Facility

MT8870 Based Frequency Decoder

5 Channel Interface

Detects 0-9, A-D, *, #

LED notifier for Output state

2.54” Pin pitch

Board Dimension: 37 x 25 x 12 mm (l x w x h)

550.00Br
550.00Br Add to cart
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ISD1820 Voice Record and Playback Module

Operating Voltage: Wide power supply ranges from 2.4V to 5.5V DC

With the internal audio amplifier, this board can drive 8 Ohm 0.5W speakers directly.

An on-board microphone.

Dual operating modes

Standalone mode

Microcontroller Driven mode

Push‐button interface, playback can be edge or level activated

Record up to 20 seconds of audio

Automatic power-down mode (standby mode)

Audio recording control mode: the key to control or microcontroller, IO has drawn the line of control;

REC button: record button, you can press and hold the recording, release the button to stop recording;

RLAYE key: trigger mode playback, press will play this whole speech;

PLAYL key: jog mode playback, press and hold until playback, release to stop playback;

RPL Jumper: loop mode control, loop playback;

FT Jumper: direct control, microphone voice through the speaker can playback;

650.00Br
650.00Br Add to cart
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Ceramic Vibration Sensor

Working Voltage: 3.3V or 5V.

Working Current: <1mA.

Operating Temperature Range: -10 ~ 70 Celsius.

Interface Type: Analog Output.

Item Size: 30mm x 23mm.

Item Weight: 5g.

Analog piezoelectric ceramic vibration sensor based on piezoelectric ceramic chip analog vibration makes use of the anti-transformation process of piezoelectric ceramic making the electric signals vibrate. When piezoelectric ceramic chip is vibrating, the sensor signal terminal will generate electrical signals. The sensor can be used with Arduino dedicated sensor shield, and Arduino analog port can perceive weak vibration signals, so that it can work out the interactive works related to vibration, such as electronic drum interactive work. Please connect analog voltage ceramic vibration sensor to the Arduino UNO controller’s analog port A0 in accordance with the procedure, then observe the output value of serial port when the vibration degree is different, it can realize interactive works related to the vibration.

600.00Br
600.00Br Read more
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Voice Recognition Module V3.1

Voice Recognition Module V3.1

Speak (Voice) Recognition Module V3.1 compatible with Arduino is a compact and easy-control speaking recognition board.

Supply Voltage: 4.5 – 5.5 V.

Current : <40 mA.

Digital Interface : 5V TTL level for UART interface and GPIO.

Support maximum 80 voice commands, with each voice 1500ms (one or two words speaking).

Maximum 7 voice commands effective at same time.

Arduino library is supplied.

User-control General Pin Output.

4,500.00Br
4,500.00Br Add to cart
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Sound Sensor

Operating Voltage: 3.3V to 5V DC

LM393 comparator with threshold preset

PCB Size: 3.4cm * 1.6cm

Induction distance: 0.5 Meter

Operating current: 4~5 mA

Microphone Sensitivity (1kHz): 52 to 48 dB

Easy to use with Microcontrollers or even with normal Digital/Analog IC

450.00Br
450.00Br Add to cart
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Vibration Sensor

Operating Voltage: 3.3V to 5V DC

Operating Current: 15mA

Using SW-420 normally closed type vibration sensor

LEDs indicating output and power

LM393 based design

Easy to use with Microcontrollers or even with normal Digital/Analog IC

With bolt holes for easy installation

450.00Br
450.00Br Add to cart
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Tilt Sensor

SW-520D – Tilt Sensor Module

Supply voltage: 3.3 V to 5V

Output can directly connected to controller

TTL level output

Maximum output current : 15mA

Can work on low voltages

Maximum operating temperature: 0°C to 80°C

Easy interface

450.00Br
450.00Br Add to cart

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