Search results for: 'alarm'

A common and insanely versatile timer/oscillator from TI - blink an LED, generate tones, triggers and thousands of other uses.

This is an Emergency stop switch(Mushroom switch, push button switch). This is a great looking button for any project where you need a "Big Red Button".

These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog...

This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the 'alarm' pin will go low.

This is a common 555 timer/oscillator from TI. A classic for all of those first year circuits projects where you need to blink an LED, generate tone, and thousands...

This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the ‘alarm’ pin will go low.

The Adafruit S-35710 Wake Up Timer is a low power 'watchdog timer' chip that can be programmed to alert with a digitally-configurable alarm from 1...

Based on a new generation ARM Cortex M7, the Qwiic Tsunami extends polyphony to 25 mono or 13 stereo simultaneous uncompressed 44.1kHz, 16-bit tracks...

The light sensor Bit can turn your circuit on and off by detecting the brightness or darkness of the environment they are in. control your circuit's with light! The amount of light shining on the sensor will change how your circuit behaves. It's a great way to activate your circuit, and is perfect for alarms!

The oscillator is the main sound source in the Synth Kit and is capable of creating audio tones that will be used in almost every sound experiment you create. It features a "pitch" knob to adjust its output tone and a "tune" dial for adjusting the tuning when using with the keyboard. It also features a mode switch that selects between "square" and "saw" waveforms. The "square" waveform has a rich, powerful character, and the "saw" waveform has a more mellow, rounder character. [You'll often use it after the Keyboard or Micro Sequencer Bits modules, but you can have lots of fun by just twisting the pitch knob and "sweeping" through all the frequencies from high to low pitches.]

The motion trigger is similar to the sensor on an automatic door: when someone is moving nearby, it sends an ON signal to the following Bits. It's very sensitive, so don't breathe unless you want to be detected! Try it with some LEDs to create a security light!

Get this vibration sensor to build a burglar alarm system to protect your property! This cost-effective vibration sensor, characterized by high sensitivity, fast...

The factory-calibrated hydrogen sulfide sensor has a variety of signal output methods to meet various communication needs...

This is a pre-wired and waterproofed version of the DS18B20 sensor made with a PTFE wire cable. Handy for when you need to measure something far away, or in wet...

Learn electronics with the Elenco 200-In-One Electronic Project Lab! This kit includes everything you need to get started building your own electronic circuits. Components such as resistors, capacitors, LEDs, ICs and more are securely attached to the electronic lab so you can spend less time searching for components and more time learning how to build that next circuit! This kit requires six AA batteries (not included).

This laser range sensor can be used to detect objects in 4~400cm with ±2cm accuracy, UART output, appliable to various detection scenarios like, security...