This project needs properly documenting, but in short it’s a Diecimila with a network module a 6V buzzer and tri-colour LED connected to PWM which provides an audible and visible alert upon the receipt of specific new emails. I run Ubuntu and Evolution mail on a wireless laptop which has a filter configured to pipe [...]
Tag Archives: Arduino
Ardunio Visible Distance Detector
I’ve had the Arduino Mini Pro for about 2 months now, but as I forgot to order/have some sort of USB FTDI converter I’ve not been able to play with it. As part of another planned project I intend to use the SRF02 ultrasonic sensor to detect and alert upon someone getting too close to [...]
Posted in geek, servers & tech, projects, videos Also tagged distance, ftdi, leds, mini pro, pwm, srf02, tri-colour, ultrasonic 1 Comment
Ardunio Visible Distance Detector v1.0 snippet
/* This code receives input from the SRF02 ultrasonic and maps the values to RGB outputs to a tri-colour LED. */
Arduino and HD44780 LCD
I’ve just been playing with a new HD44780 4×20 LCD from ebay on the Arduino. As I’m still ‘playing’ I’ve tried to document a kind of breadboard interface for the Arduino to LCD. It should help me to remember how things are setup so I can use it a modular fashion later.
Arduino and HD44780 LCD v1.0 snippet
/* LCD display with 4 DataPins * ——– * * This is a example in how to use an LCD screen * configured with data transfers over 2 x 4 bits. The example * based on the “LCD Hola example” by DojoDave. * * There are the following pins to be considered: * * – [...]
