The author, Olivier de Broqueville designed this circuit for hi’s son who was dreaming of a small tool able to write symbols or pictures on a screen. The solution adopted was to pilot a matrix of Leds. This way, with only some cheap transistors, common red Leds, and a 16F628 , the dream could become reality.
Olivier also made a VB application that you can use to design patterns and export them apropriately.
Fancy LED matrix: [Link]
The LED cube runs using a PIC16F690. Along with the brief explanation of how to make it, the author has also included the .asm file for the PIC and a piece of software written in VB.NET that you can use to create your own LED patterns. These can be exported as .asm files and put into the main .asm code.
Reconfigurable 3×3x3 LED Cube: [link]
Daniel build this clock after having to chose from a watching a movie or working on a project. Obviously he and hi’s friend chose to make the clock so it wassn’t long until the LED’s started to light up. The clock code is based on the open-source-arduino-clock by Rob Faludi. Daniel made many changes, but the time counting the basically the same. So if you want to make another kind of clock, I suggest you to take a look on that code.
Arduino Based Binary Clock: [Link]
Caller Line Identification displays on a (2×16) LCD the phone number of the person who is ringing you, before you even answer. Even though most modern phones have this option built-in it’s nice to learn how this things works and who knows it might even be usefull when you try to integrate such a function in a future project. The number stays on the LCD till its replaced by a new received phone number OR if the button is pressed.
The circuit has allot more functions, but I’m not gonna present them here, just visit it’s page to see the full info.
Caller Line Identification: [Link]
This project is based on the previous one posted and here the DCF77 runs the clock from the thermostat always on the right time synchronizing not beeing necessary anymore. The temperaturesensor is a DS1820 or DS18B20 and on a HD44780 (or compatible) 2×16 LC-Display becomes day, date, time, temperature (with 0.1°C precision) and an indication which temperature adjustment (economy- or comfort temperature) is active.
For each day there are 4 ON/OFF times to program, ON means here switch to the comfort temperature and OFF to the economy temperature.
A handy option is for people who work at different times (shift work) because it is possible to program the clock with a 2-weeks scheme.
As you can see a really complex program has been created for this project which makes it really handy for those who need it.
DCF77 Clock-Thermostat: [Link]
