Content for Project

Web-based universal remote under $4, probably

“Don’t buy a universal remote, make one. It’s cheaper, funner, universal-er, kind of, and you get to learn the ESP8266, kind of. If you have a hungry toddler like I do, you might also be missing some of …

A look inside the DS3231 real-time clock

“Dallas Semiconductor, now owned by Maxim Integrated, is well known for making some excellent real-time clocks (RTCs). Take, for example, the DS1307: it’s simple, works with essentially any cheap 32,768 Hz watch crystal, is easily accessible over I2C …

An Arduino-Based TV Smart Timer

“Designed to be an easy to use device, it’s a possible solution for parents with children spending too much time watching TV. A concern that parents have every day is to limit the time their children spend watching television …

ARDUINO, How to blink a LED without using delays in your sketch

“This ARDUINO tutorial will show you how to use a 555 timer to blink led’s so you don’t have to use delays in your sketch.”

BarkBox! Simple Noise & Intrusion Detection Device

“BarkBox! This is a device that simply listens for loud sounds, like barking, and looks for motion present and records the events. I created this project because one day I came home to my dog barking and thought how long …

Compressing Radio Signals

“Hello again with a new chapter of domotics. This will be very brief in order to finish the idea on how to clone and prepare to send signals between arduinos. In this case we are not going to normalize the …

Digital logic using 555 chips

“Question: is the 555 complete in the Boolean sense? That is, can any Boolean function be realized as a network of 555 chips? Answer: yes. Tie the threshold pin high—-this essentially disables the 555’s internal latch. Now provide …

Gardening Temperature and Humidity Logger

“Working with electronics has become much easier after the arduino line of boards, the large community develops a large number of libraries that make interfacing with any sensor with the arduino easy. And now years later, after the launch of …

How to Send an SMS Text From a GSM Chip Using Putty

” want to be able to program the AI-Thinker A6 GSM module for one of my projects. As part of the learning curve, I set out to send a simple sms text message from the GSm module to my cell …

Kitchen Timer

“Kitchen timer is a simple gadget never thought of breaking down, but it eventually will be. Though it is cheap I have no interest to buy a new one, I asked myself can I make one for my own? Checking …