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Arduino Ultrasonic Combination Switch Connection

Ultrasonic Combination Switch using an Arduino

Time for a follow-up to the Single Button Combination Lock by creating another oddball type of switch/lock. To activate this switch we make use of a Parallax Ping))) Ultrasonic sensor, an Arduino-style board and some other hardware – to make a device that receives a four-number code which is made up of the distance between a hand

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Sound Activated Switch

Sound Activated Switch

Description Clap switch/Sound-activated switch designed around op-amp, flip-flop and popular 555 IC. Switch avoids false triggering by using 2-clap sound. Clapping sound is received by a microphone, the microphone changes the sound wave to electrical wave which is further amplified by op-amp. 555 timer IC acts as mono-stable multi-vibrator then flip-flop changes the state of

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5 NODE RASPBERRY PI 3 COM CARRIER BOARD WITH GBE SWITCH

5 NODE RASPBERRY PI 3 COM CARRIER BOARD WITH GBE SWITCH

MiniNodes has launched a $259 carrier board for developers seeking to build a mini Arm Cluster. The board supports up to 5x Raspberry Pi Compute Modules 3 modules. The 5 Node Raspberry Pi 3 CoM Carrier Board offers a switched Gigabit Ethernet port to enable networking accessibility to each of the modules. A DC jack for power is also available.

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DIY Tilt Switch.

DIY Tilt Switch

In this instructable I’ll show you how to make a simple tilt switch, this tilt switch works best with microcontrollers that can debounce the signal and overcome interferences produced by vibrations. There are many ways to make a tilt switch, this one is a cheap and easy way to do one. Pros: -Tiny. -Easy to

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