Category: Arduino

Easy modular home automation

Attention This solution is given as it is, and I can/will not guarantee that it can not be hacked or abused by others. So use your common...

2×16 I2C LCD and Thermocouple

Been some time since I last posted some arduino code… But here it is! This time it is to make a Thermocouple with a MAX6675...

Pull up/down resistor, what is it?

When looking at tutorials you might have encountered pull-up or pull-down resistors, but why are they needed? If you look at your arduino micro controller and upload something like...

Breadboard DC connector

After multiple times having problems connecting external DC power supplies, I started to solder the connectors onto pin headers in different ways. The most stable solution so...

4×4 Matrix Keyboard Keypad

A while ago i purchased a 4×4 keypad on ebay, and actually forgot everything about it. But today it arrived!!! 🙂 After 30 secs on...

Seeeduino Mega

Extra headers Soldering the extra headers onto a Seeeduino Mega I always start with the inner row, and then solder one in each end. That...

Ambilight with Arduino and Processing

This idea started long ago, when I saw someone else having made a program to capture the image on the screen, and process it into...

RFM12B 434MHz Radio

I just received a JeeNode with one of these radio’s on board, and then a loose radio to connect with one of my arduino’s. Here...

Snail mail notifier project

Initial thoughts Got a new mailbox, and I got the choice of putting a switch on the lid or something longer in. My previous one had a...