Description 1. The Sound Detector is based on a microphone and a power amplifier. It can be used for detecting the sound strength of the environment. 2. This sound sensor gets signal by both digital and analog output. 3. "AO" outputs real-time voltage...

This shield (an Expansion Board without XBee module) is a compliant solution designed to meet low-cost, low-power wireless sensor networks with special needs. The Xbee module is widely used in the United States, Canada, Australia, Israel and Europe...

A passive buzzer emits a tone when a voltage is applied across it. It also requires a specific signal to generate a variety of tones. Specifications Rated Voltage: DC 5V; Working Voltage: 6-24VDC Resonance Frequency: 2.8 +/- 0.5KHz; Sound Pressure:...

Continuous beep - Breadboard friendly!

Diameter:5mm Model: 5549 Light Resistance 45-140KO Dark resistance 10MO

They come in 5 meter reels with a 3-pin JST SM connector on each end and separated power/ground wires and different color wires than show in the image. These strips are sold by the meter! If you buy 5 meters at a time, you'll get full reels with two...

These Simple RF receivers are the easiest way possible to add wireless control, painlessly! There's no programming, configuring or addressing - simply power the receiver with 5-10VDC and press the buttons on the matching RF keyfob remote. When the A...

This 4-button keyfob remote goes with Adafruit's basic 315MHz RF receiver modules. It will work with all of them, sending out one of four commands that match up with the four outputs. Its small and light weight and will work up to 25 feet away depending...

  One Terminal Strip, Tie-point 25. Material: ABS plastic Completely reusable. Accepts a variety of wire sizes (29-20 AWG). Red,green,blue,yellow ,white,and black are available for...

Various flame, fire detection, relay output, which can be accessed 220V high current electrical equipment Module Features: 1, can detect the flame or the wavelength at 760 nm to 1100 nm range of the light source, the test flame lighters distance of...

Operating Voltage : 5V(DC) Static Current: Less than 2mA. Output Signal: Electric frequency signal, high level 5V, low level 0V. Sensor Angle: Not more than 15 degrees Detection Distance: 2cm-450cm High Precision: Up to 0.3cm Input Trigger Signal: 10us...

Please note: you won't be able to use this kit as a TV tuner! The DVB-T standard is not used in North America. This products is used for various communication projects with RTL-SDR. More information here: rtl-sdr.com - About...

The "poor man's" accelerometer/motion sensor! These spring-vibration switches are high sensitivity non-directional vibration induced trigger switches. Inside is a very soft spring coiled around a long metal pin. When the switch is moved, the spring...

Make your own little LED strip arrangement with this stick of NeoPixel LEDs. Adafruit crammed 8 of the tiny 5050 (5mm x 5mm) smart RGB LEDs onto a PCB with mounting holes and a chainable design. Use only one microcontroller pin to control as many as you...

This is hot! Literally! Apply 5-12VDC and the stainless steel fibers in this heating fabric will warm up, creating a little heating pad. On one hand, it's just a gigantic resistor. On the other hand, it's flexible, light, and can be wrapped around a...

Transistors are powerful little electronic switches, and we really like these NPN transistors whenever we need to control medium-power electronics such as small motors, solenoids, or IR LEDs. We find them so handy, they come in a pack of 10! Each...