Using Wemos D1 Mini & Oled Shield
In this guide I’ll show you how to use the shield and it’s two buttons. Lets get to it. Resoltion is 64×48 Button A is by default pin D3. Button B is by default pin D4. Buttons can be customized…
Category Arduino
Using Wemos D1 Mini with SHT30 Sensor Shield
SHT30 is a temperature and humidity sensor, almost the same as DHT22 only much smaller. They also measure a larger range, from -40 to 125 C. Parts: What we need is a Wemos D1 Mini board, which can be found…
Guide: Flashing Hobbywing Skywalker 20A ESC with BLHeli Firmware
This guide will tell you step by step how to flash a Hobbywing 20A esc with BLHeli firmware for multirotors. It will be the same procedure for any other ESC with a silabs chip, you just need to find the pin-outs for…
Bad quality shield bought on eBay
I was looking for some cheap shields for my Arduino board, and stumbled across a very inexpensive proto shield. A well known seller with good reputation had it laying around for only 7,65 $, so it couldn’t be that bad.…
DHT11 Library for Arduino 1.0
DHT11 is a cheap and easy to use temperature and humidity sensor. But since it’s digital and only uses one pin there is a great library for it! Of course it has some problems compiling on Arduino 1.0 and the…
Tutorial: C# Communicating with Arduino over Serial
In this tutorial I’ll try to show you how to easily tell an arduino what to do from a C# program using serial communication. The only thing the C# program does is send a byte to the arduino, and the…
Arduino, LEDs that blinks to the Music!
I always wanted to make something out of the microphone sensor I got, it’s just been laying in a compartment-box until recently when I got the idea of a music beat blinker. Basically it just reads the analog value from…
Cheap arduino nano from DX!
Looking for yet another cheap & tiny arduino? For only 16.90$ you get a Arduino Nano V3 clone from dealextreme! Ever since modified electronics stopped making the pico I’ve been looking for another arduino in the same price range and…
Ultrasonic HC-SR04 Sensor
I’ve stumbled by this neat little sonar sensor on eBay a few days ago, I’ve had some bad experiences with other similiar ultrasonic sensors so I was kind of skeptic to this one. But for the low price I couldn’t resist.…
How to make a security alarm using LDR and Laser!
How about a easy and simple tutorial on how to make a sort of security sensor using laser and a light dependent resistor? It’s just as simple as this, the LDR reacts when it gets less light than the laser-dot in the…