Attach any I2C client chip (thermo sensors, AD converter, displays, relais driver, …) to your PC via USB … quick, easy and cheap! Drivers for Linux, Windows and MacOS available. The i2c-tiny-usb project is an open source/open hardware project. The goal of i2c-tiny-usb is to provide a cheap generic i2c interface to be attached to […]
i2c interface to USB interface using attiny45 microcontroller Read More »
Sometimes in embedded design you may want to go wireless. Might be you will want to log various readings of remotely placed sensors, or simply build a remote control for robot or car alarm system. Radio communications between two AVR microcontrollers can be easy when specialized modules are used. Lets try to run very well
Running TX433 and RX433 RF modules with AVR microcontrollers using Atmega8 Read More »
MP3 is presently a household term; the reader will likely own a few, barring any intervention from the RIAA. Since it’s not always practical to sit in front of a monitor and keyboard when you want to listen to music (e.g. in a car, on the couch, in the bathroom), we decided to create a
TV/Keypad Interface for Winamp Using Atmel MEGA32 Read More »
Introduction The tags used to monitor wildlife can either be passive or active. Passive tags simply identify an individual, whereas active tags may send out a radio beacon or even collect data. These active tags, more commonly referred to as “bio-loggers”, are typically battery powered, and thus have limited life. This is especially true for
Self-Reliant Power and Data Management System Using Atmega644 Read More »
In the Internet of Things movement, people across the globe are connecting their stuff – TVs, pets, even houseplants – to the internet and transmitting all sorts of data. If you’re going to be a part of that movement, or want to dabble in creative prototyping on a budget, it’s important to get to know
Getting Started With the ATMega328P Read More »
This is the second part of my USB tutorial for ATtiny2313 and V-USB library. In the first part we learned how to get 3.3V from USB to power our circuits. In this part, we will expand our setup with following parts: Larger breadboard and additional jumper wires ATtiny2313 12 MHz crystal oscillator Two 27 pF ceramic capacitors
AVR ATtiny USB Tutorial Part 2 Read More »
What’s Sonoff? Sonoff is a device line for Smart Home developed by ITEAD. One of the most flexible and inexpensive devices from that line are Sonoff Basic and Sonoff Dual. These are Wi-Fi enabled switches based on a great chip, ESP8266. While the Sonoff infrastructure may work quite well for basic users, others may want to hack into that hardware
How to Flash MicroPython Firmware on a ESP8266 Based Sonoff Smart Switch Using Atmega Read More »
Overview The Pololu USB AVR programmer [http://www.pololu.com/product/1300] is a programmer for Atmel’s AVR microcontrollers and controller boards based on these MCUs, such as Pololu Orangutan robot controllers [http://www.pololu.com/category/8/robot-controllers] and the 3pi robot [http://www.pololu.com/product/975]. The programmer emulates an STK500 on a virtual serial port, making it compatible with standard AVR programming software. Two additional features help
Pololu USB AVR Programmer User’s Guide Using Atmega Read More »
The complete WLAN solution for AVR and other CPUsThe page is about equipping an Atmel AVR microcontroller based system with a Prism WLAN interface. This document is intended for people that already have experiences with the AVR microcontrollers and teaches them how to add a cheap but flexible WLAN interface to your AVR projects. Related projects At least two
Wireless Lan for AVR microcontrollers Using Atmega Read More »
I. Introduction Today, the rising cost of energy and social trend of “going green” has put increasing pressure on commercial property owners to improve the efficiency of their investments. There is good reason for this, too. In the State of California, office buildings represent the single largest user of energy in the commercial sector (Efficiency
