Repurposing an old laptop power supply (18vdc) and dozens (actually - hundreds...) of white LEDs from old solar powered Christmas lights, to build an illuminated 'Merry Christmas' sign (a la Big Clive's Arcade sign).
The LEDs are made into strings of 5, each with a current limiting resistor, and a switching transistor to control the string. The transistors are switched from the outputs of multip...
This is a project which is reproduced from arduino.cc Arduino Mega 2560. Using EasyEDA to re-layout the PCB.
This is a project which is reproduced from arduino.cc Arduino Mega 2560.Using EasyEDA to re-layout the PCB.
BTW, This project is **not imported** from an Eagle, I have done some modification.
This is the adaptation for Arduino UNO R3 of **Adrzej Janeczek project** “AVT-2813” - Multimeter addition for L measurement.
# YOUTUBE MOVIES: #
The Arduino platform has become quite popular with people just starting out with electronics. It is an open-source hardware design, based on microcontroller board designs and provide sets of digital and analog I/O pins that can be interfaced to various expansion boards ("shields") and other circuits. The boards feature serial communications interfaces, including USB on some models, for loading pro...