Arduino projects & classical electronics by Nicu FLORICA ( niq_ro), since 2003
I use led display named LFD080AAG-103-01 (4-digit 7-segment common cathode) For RTC clock I use DS1307 homemade module, but works without changes with DS3231 module. For thermometer and higrometer it use DHT11 sensor, but with a...
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...
If you need more power can use bridging adapter, who must interconect like in this schematic and schematic is very simple I redesign schematic in Autodesk Eagle PCB software: and made a version for...
TDA3810 is an old spatial, stereo and pseudo-stereo sound circuit who is hard to found, so I search replacement solution. In an old romanian book named “Electronica peste tot’ (Electronics everywhere) writted by mr. I.C.Boghitoiu,...
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