1) The first opamp is inverting with such a low input resistance of 1k ohms that it kills most of […]

Things used in this project Hardware components: SparkFun esp8266 × 1 Arduino UNO & Genuino UNO × 1 SparkFun Logic […]

In this project, we create a joystick-controlled laser by connecting two servos to a joystick and using this setup as […]

In the world we live in, it’s rare that a day goes by without coming across a news story highlighting […]

This recipe is orginally from :http://www.geek-workshop.com/thread-8835-1-1.html This is homemade Arduino based GPS map navigation system, mainly used to locate and record the path at run time. Use a 1.8-inch TFT screen, 128*160 resolution, SPI interface 5V lithium batteries, voltage 3.3V. Black button up on the left […]

Software Configuration 1.1. Download the app of LinkNodeR4, and install it. https://github.com/delongqilinksprite/LinkNodeR4-app 1.2. New users please register an account on […]

A couple of you know that I recently lost a hard drive and had to get another one.  In the […]

Today’s tutorial is about a request by Martin: write a sketch to access to a protected area (usingusername and password) of […]

I’m developing an application that will use custom fonts: you can avoid installing the fonts to the user’s PC embedding […]