circuit

Adafruit’s Circuit Playground As a Robot Controller With Bluetooth

A friend gave me one of Adafruit’s circuit playgrounds (developer edition) to use, and I wanted to see would it make a good robot controller. The circuit playground is packed full of features like sensors, neo-pixels and even an accelerometer. I wanted to add a L9110 motor controller and create a small bot I could …

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ALTIUM’S PCB DESIGN SHARING & VISUALIZATION TOOL HELPS TO VIEW POPULAR CAD FORMATS IN YOUR BROWSER

Altium has launched a new, cloud-based application – the A365 Viewer –   that redefines the way that printed circuit board designs are shared between designers, part suppliers, and manufacturers. Adding the Altium 365 Viewer has significantly enhanced the user experience when navigating the product documentation on our website. Now Arduino users can freely browse schematics, …

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IoT Set-up to Operate/control 220-240 Volt AC Bulb/Device; NodeMCU Amica + 5V Relay + MQTT + Arduino IDE + Web Browser (HTML + JavaScript/jQuery)

What are we messing with? IoT (Internet of things) set-up to operate/control 220-240 Volt AC Bulb/Device NodeMCU Amica + 5V Relay + MQTT + Arduino IDE + Web Browser (HTML + JavaScript/jQuery) WARNING!! – THIS PROJECT INVOLVES WORKING WITH HIGH VOLTAGES THAT CAN CAUSE SERIOUS INJURY, DEATH, AND/OR SET YOUR HOUSE ON FIRE. PLEASE PROCEED …

IoT Set-up to Operate/control 220-240 Volt AC Bulb/Device; NodeMCU Amica + 5V Relay + MQTT + Arduino IDE + Web Browser (HTML + JavaScript/jQuery) Read More »

Temperature and Humidity Monitor Using DHT22 & MAX7219

We always need to see the temperature and humidity when we sitting in our house to know whether we need to turn on/off AC, heater,cooler,etc. So here we have build this circuit to display temperature and humidity on the 7-segment displays, and we have used DHT22 to bring out the temperatures and humidity and a …

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WIN SOURCE – A GOOD PLACE TO BUY COST-EFFECTIVE COMPONENTS ONLINE

There are thousands of different electronic component distributors  and suppliers around the world, who sell similar parts with a range of different prices. However, In the course of my internet search, i stumbled upon WIN SOURCE, a Hong Kong-based electronic component distributor of commonly-used components and obsolete parts since 1999. They boast of over hundreds of …

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Laser Tag “Free for All” Circuit Playground Express and ESP8266

This is an easy way to make your boards into a fun laser tag game to play with friends. we combined both boards as described in the pictures. Supplies For this project you will need IR remotes, shoe laces, circuit playground express, ESP8266, battery case for the board and batteries Step 1: GIT Files Go …

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DIY ARDUINO BASED EV CHARGER SAVES MONEY, LOOKS PRO

Electric vehicles (EVs) are something of a hot topic, and most of the hacks we’ve featured regarding them center on conversions from Internal Combustion to Electric. These are all fine, and we hope to see plenty more of them in the future. There’s another aspect that doesn’t get covered as often: How to charge electric vehicles- especially …

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