USBasp ISP with ATmega8

The circuit is a homemade ISP using an ATmega8 with USB communication and software that allows to program AVR microcontrollers more (ATmega, ATiny) to be used as Arduino, an eco-mode. It is good to always have a backup programmer as a plan B The schematic and firmware can be seen here. Below are pictures of the experience. […]

True low cost arduino

With half a dozen euros is an arduino, stable and functional. Bill of material: – 1 ATMEGA328p – 1 16 MHz Xtal – 1 USB2Serie Some rigid wires A white plate of experiments and everything is done 🙂 I haven't figured out the exact amount this cost me yet, but I plan to put all these pieces together […]

In Barometric Sensor Ethershield

This is a preliminary test of a barometric sensor connected to an Arduino board with homemade ENC28j60, that allows you to read the atmospheric pressure in real time using I2C in PA (Pascal) from the point where. It also makes reading of temperature. Is a strong candidate to get in several projects intended for meteorology home. […]

Nokia LCD 3510 Interface with PIC18F

When a mobile phone stops working in terms of software and even some hardware there are parts that can be used for experiments or projects, in particular the LCD's, saving yourself some money. The aim is to use an LCD from a Nokia 3510 connected to a microcontroller for information visualization, as done in a […]

Homemade Arduino with ENC28J60

After I complain of my Arduino Duemilenove due to lack of current to power other devices, I decided to build my own in perforated plate, with a 20 MHz crystal, an LM317 1A and a bus to connect ENC28J60. The part belonging to the Arduino occupies as much or less than the original PCB. Below is the part of the Arduino to function in full, with […]

USBtinyISP AVR Atmel

An excellent way to reprogram Arduinos, among others… Already bought a few months valiant this programmer, It costs about 15 €, Although you can find between 10 and 40, but decided to purchase where trust and, the past two weeks came, everything ok and functional, the first test I did was with my ' old’ Arduino UNO (that already […]

Meteorological Station (Arduino ATMEGA328)

For some time I have been developing a weather station for the Clube de Voo Livre do Caramulo with internet connection to update in real time…. This spaghetti of wires is only one Arduino (changed to 20 MHz) with a network card based on the ENC28J60 chip (better than Wiz official), it is like this […]

Arduino DS18B20 1Wire

The idea arose as a means to verify that the temperature of a room was correct before a Mercury thermometer. Arranged an alphanumeric LCD 20×4 characters, a damaged FAX , but luckily the LCD was OK and there were some samples of 1Wire temperature sensors. The objective would therefore be to visualize temperature information […]

Scroll to top