Arduino projects & classical electronics by Nicu FLORICA ( niq_ro), since 2003
Dragos, known under albasete name from elforum (romanian electronic forum) made an useful power supply unit. Schemtic used by albasete is Original schemtic is from Reber electronic site (3A NAPAJALNIK NASTAVLJIV OD 1V DO 27V article). Also, I found same data in article 1V-27V...
For audio enthusiast, I publish an old project from ’80 years… I found article “Amplificator de putere cu tranzistoare FET” in 1985 Tehnium almanac … see here full article: I redesigned schematic using Eagle...
PIR Motion Sensor module are used for control lights or for alarm systems. I study a PIR module for light control. I try to made reverse engineering, but quickly I found the schematic on...
For a simple crossroad, you can made a simple trafic light for cars and pedestrians (passers). In schematic lights 1, 2 & 3 are for traffic ligths for cars who go from bottom to top...
For made a simply trafic light you can use a CD4017 who is Decade Counter with 10 Decoded Outputs. Also, it use CD4093 as tact generator. For made traffic light must decoder module made with...
CD4017 is most used from CMOS 4000 series, because can be used in many applications (hobby, diy, industrial, etc). First, you must study datasheet of this integrated circuit, when you will see pinout for...
If you need to use Arduino shield on your projects must use an Arduino Uno or Arduino Mega boards or made your Arduino style development board. Schematic and board was designed using (Autodesk) Eagle PCB...
AN6884 is 5-dot led driver circuit with logarithmic scale (dB), who can be used in this configuration: I made a quick test montage: Also, I made AN6884 on test board movie: I want t...
A good and simple lab power supply can made easy with LM317 and few componennts, like this schematic from an old roumanian almanac TEHNIUM 1990: Original article is: My power supply is: With an...
A practical application for monostable relay is temporary stair lights. After you short push on a button, light is on for few seconds (or minutes), after that lights is off. In roumanian old magazine...
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