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“At Interactive Objects, we needed a new business card. Business cards have been the method of leaving a token for keeping in touch. Despite all the prophets declaring it dead every decade with vCards, Bumps, etc., the traditional, physical business …
“I/O Expander Board offers a convenient way to interface upto 16 I/O pins in your project using SPI/I2C bus. This kit uses the famous MCP23S17 IO chip from Microhip.”
“A year or so ago, I hacked a Belkin WeMo switch and coupled the WIFI board to an Arduino Uno along with a little code and sensors to create a way to control my garage door. The system worked well …
“Microcontrollers such as Arduinos are a great way to control your custom electronics projects. Unfortunately the digital pins have a max output of 40mA, and this isnt enough to power most motors. This is where a motor controller shield can …
“hey are very cheap especially if you buy a dozen you can get them bellow 2$ shipped. Once they’ve arrived, to test them, I wrote a quick C test program for an AVR board which displays the distance in …
“This project began as an attempt to create a custom sensor board that functioned with an nRF24L01+ radio transmitter. I was tired of looping wires around an Arduino Uno. I thought I could create a custom solution in a fairly …
“Embedded systems frequently use HD44780-type LCD displays as it is considered the most popular alphanumeric display controller. The interface comprises at least 14 pins: eight for data, three for control (EN, WR, RS), two for power supply (Vdd, Vss …
“The PIC16F/18F Experiment Board is a small experiment board which can be used with any 28 pin PIC16F or PIC18F. It consists of a power supply, the basic components for running the microcontroller (i.e. crystal, reset pin, …) and …
“This is a simple circuit to play wav files using arduino Nano V3.0 ,it consist from 4 buttons ,each one play specific wav file loaded to SD card.”
“I normally use a USB port as power supply for my projects. Some ICs need 3.3V instead of 5V as Vcc. Therefore I decided to build a small power supply. It uses a range of 7-14V (I use 7V …