VHF-UHF Sniffer circuit SimpleTronic 2015-08-31 | This ultra-simple RF sniffer circuit will detect the emission of VHF-UHF radiation. Common sources are: cell phones, wireless phones, microwave ovens, computer screens (even LCD), wifi routers, light dimmers and fluorescent lamps.Music album:distrokid.com/hyperfollow/rekena/short-stories
Como hacer el Transformador Para Joule Thief (ladrón de Julios) SimpleTronic 2021-12-16 | Como fabricar el transformador para el circuito "Joule Thief" (ladrón de Julios). Con este sencillo circuito, podemos encender 1 o mas LEDs con alimentación de menos de 1 Volt.English version: youtu.be/BUa3GqF4kfcSUBSCRIBETE A MI CANAL ! : bit.ly/2UOKolm other proyectos:* flasher LED por 10 años con 1 celda AA (1.5v): youtu.be/DOajZVz8n6o* flasher LED de 512 colores (aleatorios) : youtu.be/GT_S_HMRK_Y* grabacion de circuito impreso metodo esponja (rapido) : youtu.be/M0Gy8ISjvhEAlbum de música:https://spoti.fi/341Ns1V
Fabricación de circuitos Impresos SIN uso de calor SimpleTronic 2021-12-15 | Transferencia de toner (laser) sin uso de calor (plancha). Con el uso de 2 químicos muy comunes podrás transferir el print LASER para fabricar tus circuitos impresos rapidamente sin la utilización de calor.Grabado de circuitos impresos con el método de esponja: youtu.be/M0Gy8ISjvhE English version: youtu.be/HBIxvwZ_0og
Solder on Aluminum SimpleTronic 2020-06-03 | Solder on aluminum - Solder electronic components & wires to aluminum surfaces. No need for screws/bolts. Useful for example for aluminum RF shields and heat sinks. Also suitable for plating aluminum objects for artistic purposes. Process is electroless (non-galvanic copper plating) and uses very common easy to find chemicals.SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1VSoldadura de componentes y cables a aluminio. Proceso simple y no-galvanico con elementos quimicos muy comunes.
METRONOME (electronic) schematic with time signature LEDs SimpleTronic 2020-05-01 | Build this simple electronic metronome. Tempo variable between 40 and 250 bpm (beats per minute) . Sound + led display for time signature. Circuito de metronomo electronico.SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1V
AC eddy current Induction Motor (with reverse) SimpleTronic 2020-04-21 | Build this simple AC induction motor. Uses no brushes or permanent magnets. Rotor is an aluminum cylinder and stator consists of 2 AC powered electromagnets. The alternating fields of the electromagnets induce eddy currents in the conductive cylinder. These eddy currents induce their own magnetic fields in the rotor interacting with the stator fields. A capacitor shifts the phase of one of the coils and the summing of both fields results in a displacing alternating magnetic field, dragging the rotor.Motor a inducción de corriente alterna.SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1V
Fast Reflexes Skill Game (2 player) SimpleTronic 2020-04-12 | Test your reflexes and reaction time against your opponent.DIY quick reflexes electronic game circuit with only 4 cmos integrated circuits and NO microcontrollers.juego de reflejos - reaccion - reflejos rapidos - proyecto electronico - circuito SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1V
IR (infrared) remote control toggle switch / sequencer SimpleTronic 2020-04-05 | Use your TV IR (infrared) remote control to switch electric appliances on and off. Configure it as a simple ON/OFF toggle switch or as a 1 to up to 9 sequencer. Range is over 10 meters with most TV infrared remote control transmitters. Using the "enter" button, will not affect any setting of your television set.SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1V
LED as PHOTOSENSOR ? SimpleTronic 2020-04-02 | Can you use an ordinary LED as a photosensor ? . LEDs are normally used to transform electrical energy into light, but as many other semiconductors they can also do the opposite, that is convert light into electricity ! . This simple demonstration circuit uses 3 (or 1) leds as light detectors and turn on a LED when no ambient light is present.SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* solder components / wires to aluminum: youtu.be/Z14aU-PaioA* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1V
512 color LED flasher (random) SimpleTronic 2020-03-30 | This LED flasher randomly changes the color on every cycle. No microcontrollers, only 2 cmos IC's & 1 transistor to drive the RGB led.9 bit binary counter drives 3 3-bit D/A (digital-analog) converters for 512 different randomly generated colors. LED blinker runs on a 9V battery or supply.subscribe to my channel: bit.ly/39xiWhiother projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a mini - oscilloscope: youtu.be/X0m3AFAmYw0* make an electronic tic tac toe game: youtu.be/DVL3ryTkjgIMusic album: https://spoti.fi/3az5hrfDestellador LED de 512 colores.
1.5v (AA cell) to 50v DC-DC Voltage Booster SimpleTronic 2020-03-28 | VOLTAGE BOOSTER. This simple device boosts 1.5v (AA cell) to 50v (no load), and to lesser voltages at useful current capability. Only 1 transistor and 1 transformer (full details in video). You can see it driving 20 leds series connected.subscribe to my channel:bit.ly/39xiWhiother projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a mini - oscilloscope : youtu.be/X0m3AFAmYw0* make a 512 color (random) LED flasher / blinker: youtu.be/GT_S_HMRK_Y Music Album:https://spoti.fi/3az5hrfElevador de voltaje de 1.5v a 50v . Transformador CC a CC .
Resistor Color Code made easy SimpleTronic 2019-03-15 | Resistor Color Code for 4 band, 5 band and 6 band resistors explained. Description of digit bands , multiplier band and tolerance band. Similar color code is used for small capacitors and inductors .SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolmother projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/3az5hrfCodigo de colores de resistencias de 4, 5 y 6 bandas.
Burping Piggybank SimpleTronic 2019-02-02 | Build this burping piggybank. Project is built around PIC12F683 microcontroller . Sound data is stored in 2K program memory.Link to PC-board PDF & HEX/ASM code:https://is.gd/Ojq29NLink to Roman Black's sound encoder software:http://www.romanblack.com/picsound.htmSUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolmother projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album: https://spoti.fi/3az5hrfAlcancia chancho electronica con circuito impreso y software codigo pic.
Lissajous Figures on 8X8 LED matrix SimpleTronic 2018-11-07 | Generate Lissajous Figures on an 8X8 led matrix or 64 discrete led's and display eye-catching animations. Circuit is driven by PIC16F627 microcontroller. Download link for HEX and ASM codes below.drive.google.com/open?id=11iizVx2rQe8qZESd6hAJSUS4RPdYMfo7SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/3az5hrfFiguras de Lissajous con matriz de LED de 8X8. Descarga de codigo HEX y ASM para pic 16F627
Mini - Oscilloscope (DIY) SimpleTronic 2018-08-10 | Build this simple mini- oscilloscope. View up to 40KHz waves from 50mV to 50V pp amplitude. Input gain adjustment from 1 to 100. Auto sweep trigger function to freeze the wave with variable threshold. Y-axis position adjustment. 10x7 led matrix display. 9V battery operation.SUBSCRIBE to my channel ! : bit.ly/39xiWhiother fun projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y Music album: https://spoti.fi/3az5hrfMini osciloscopio casero matriz LED 10X7 . operación 9V
Accurate 1 Hz from AC mains SimpleTronic 2018-05-05 | How to extract an accurate 1Hz square wave from the AC mains. Line frequency is, depending on the country 50Hz or 60Hz. Frequency has small fluctuations in the short term, but is compensated daily by the power station resulting in a quite accurate frequency source for many timing applications.Music album:distrokid.com/hyperfollow/rekena/short-stories
7 Segment display encoder (with diodes) SimpleTronic 2018-04-18 | This is a very simple technique for displaying most ASCII characters on a 7 segment LED display with minimum number of components. Useful for example, to indicate the position of a rotary switch.Music album:distrokid.com/hyperfollow/rekena/short-stories
Tic-Tac-Toe Part-2 ( 3 in a row ) SimpleTronic 2018-03-18 | Electronic recreation of the classic pencil & paper game. This part-2 focuses on the physical build of the device. You will find all the details on the circuit operation in previous video. Links for the PCB, Hex code for PIC16F627 burning and Laser cutting of panel are below:PCBoard & Hex code: goo.gl/2WcVBM Top panel CDR: goo.gl/arD1j3Part 1 video: youtu.be/DVL3ryTkjgISUBSCRIBE to my channel ! : bit.ly/39xiWhiother projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/2UzoWBOJuego de ta te ti (tateti) electronico. Descarga de circuito impreso y codigo ASM y HEX para microcontrolador PIC 16F627
Tic-Tac-Toe Part-1 ( 3 in a row ) SimpleTronic 2017-11-03 | Electronic recreation of the classic Tic-Tac-Toe ( 3 in a row ) paper & pencil 2 player game. Circuit is based around PIC 16F627A microcontroller. Download link for PC board PDF, assembly and HEX codes: goo.gl/2WcVBMPart-2 video: youtu.be/AKwD0E7XRUASUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1VJuego de ta te ti ( tateti ) electronico. Descarga de circuito impreso y software codigos ASM y HEX para micro PIC16F627A
USB Traffic Light + PCBoard SimpleTronic 2017-07-22 | USB powered Traffic Light model. PCBoard, component placement & templates in PDF download.PCBoard PDF link:drive.google.com/file/d/0Bxsma3fGYPyRMnBnV2dwQmtnUnc/view?usp=sharingmusic album:distrokid.com/hyperfollow/rekena/short-stories
Phantom Power Blocker SimpleTronic 2017-05-28 | Phantom power (48v) is provided by audio mixer consoles for condenser microphones. Connecting dynamic or ribbon microphones to a phantom powered input can in some cases damage the microphones. This simple circuit blocks the voltage and protects the mics from possible damage.SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1VBloqueador de voltaje fantasma (phantom) para consolas de audio. Proteje microfonos dinamicos y ribbon.
Polarity Inverter (charge pump) SimpleTronic 2017-05-21 | This circuit generates a negative polarity voltage from a positive one. Useful for OP amp circuits and small audio power amplifier circuits powered from a single voltage source like a battery. Power output is up to 10w. Maximum input voltage is 18V. note: at minute 1:26 text should read: "minus 2*Vf"Music album:distrokid.com/hyperfollow/rekena/short-stories
Printed Circuit Board Sponge Etching method SimpleTronic 2017-01-21 | Sponge method - Etch your Printed circuit board in less than 2 minutes with a very small quantity of Ferric Chloride.I made this PCB using the Heatless Toner Transfer method:youtu.be/HBIxvwZ_0ogSUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a mini - oscilloscope: youtu.be/X0m3AFAmYw0* make an electronic tic tac toe game: youtu.be/DVL3ryTkjgIMusic album: https://spoti.fi/2UzoWBOComo grabar tu circuito impreso rapidamente con el metodo de la esponja.
PWM power led dimmer SimpleTronic 2017-01-07 | This simple dimmer circuit is built around 1/2 of a CD4093 chip. PWM (pulse width modulation) ensures minimum power waste. With appropriate FET and power supply, can drive any power LED array.Music album:distrokid.com/hyperfollow/rekena/short-stories
DIY Logic Gates SimpleTronic 2016-11-29 | Make your own logic gates from discrete components. DTL logic gates occupy very little area on the PCBoard and have a very high FAN-IN capability. Equivalent gates with standard IC´s require more area on PCB and many integrated circuits.Music album:distrokid.com/hyperfollow/rekena/short-stories
Guitar Overdrive + Sub-octaver SimpleTronic 2016-11-25 | Guitar overdrive circuit with sub-octaver. Built around CD4069 & CD4013 cmos IC´s provides a warm tube-like distortion. PCBoard for download included.download link: drive.google.com/file/d/0Bxsma3fGYPyRZ3Zablh3REhWVUU/view?usp=sharingExample soundfile link: drive.google.com/file/d/0Bxsma3fGYPyRdTQ2d25aekY4TU0/viewLast minute mods: R9 was 100K, now is 47K . Added 470p ceramic in parallel to R12Music album:distrokid.com/hyperfollow/rekena/short-stories
UV LightSaber Nightlight SimpleTronic 2016-08-17 | Ultra-Violet NightLight circuit. AC mains powered NightLight with Endlighten light diffuser. PCBoard PDF download. Touch sensitive 4 bit digital / analog dimmer. PCBoard download link:drive.google.com/file/d/0Bxsma3fGYPyRYnhCRVNwTUxWWkE/view?usp=sharingMusic album:distrokid.com/hyperfollow/rekena/short-stories
DC Power Supply (50w) using Halogen Lamp Transformer (electronic) SimpleTronic 2016-04-19 | Electronic halogen lamp transformers are very economical and can be used in DC power supplies. Make a 50w multi-voltage supply for use as power LED driver, motor, audio amp, solenoid and any other application.Music album:distrokid.com/hyperfollow/rekena/short-stories
10 Year LED flasher + PC-board SimpleTronic 2016-02-23 | This LED flasher circuit will run for 10 years on a 1.5v AA cell. This is an update to previous circuits and I have included a download link to a PC board PDF file. Download Link: goo.gl/1H9XUYSUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm Make the PC-board with the COLD TONER TRANSFER method:youtu.be/HBIxvwZ_0ogother projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/2UzoWBODestellador LED de 10 años. Funciona 10 años con una pila AA de 1.5v .
Heatless (cold) Toner Transfer (for PCB) SimpleTronic 2016-01-03 | Very simple technique to transfer a LASER print to a copper-clad board without the use of heat (iron/laminator). With only a solution of ethyl alcohol and acetone, the laser toner will stick to the copper. Get your printed circuit board (PCB) ready in a few minutes.SUBSCRIBE ! :bit.ly/39xiWhiother projects:* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher * etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album: open.spotify.com/album/1MJ3olFThqJgZTOumlczuX?si=pyh4IR2pR1OJxEtiVxih3w
UHF Remote Control receiver SimpleTronic 2015-12-07 | This simple remote control receiver works in the UHF spectrum from around 200MHz to 900Mhz. In conjunction with the transmitter described in previous video, can attain a range of 10 meters without external antennas.Link to Transmitter: youtu.be/9ngvjNrrAXcLink to UHF Sniffer: youtu.be/5ppH2XjC3zMMusic album:distrokid.com/hyperfollow/rekena/short-stories
UHF Remote Control Transmitter SimpleTronic 2015-09-25 | This UHF remote control transmitter is tunable to any frequency between 200MHz and 900MHz . It runs from 3v supply voltage and needs no external antenna. Modulation and receiver circuits will be discussed on upcoming videos.Link to UHF sniffer circuit: youtu.be/5ppH2XjC3zMMusic album:distrokid.com/hyperfollow/rekena/short-stories
DC-DC Voltage Doubler - Simplest possible circuit. SimpleTronic 2015-08-02 | Switch operated Voltage Doubler circuit multiplies any voltage x2 by simply sliding a DPDT switch. Voltage hold time depends on load and capacitor size.other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher Music album: open.spotify.com/album/1MJ3olFThqJgZTOumlczuX?si=pyh4IR2pR1OJxEtiVxih3w
Bargraph Display Digital Clock SimpleTronic 2015-08-01 | This Bar graph display clock is made entirely with CD4017 integrated circuits. Timing is obtained from AC line frequency, and subdivided to seconds, minutes & hours. AC frequency is quite stable an has been used as time reference for decades in electric wall clocks.music album:distrokid.com/hyperfollow/rekena/short-stories
Ambient Light Powered LED flasher SimpleTronic 2015-07-12 | This LED flasher circuit harvests the light in your room with a photovoltaic cell and charges a capacitor . This energy is then returned as a led flash. Efficiency of circuit is high with incandescent / halogen lighting ( and obviously daylight ) and low with fluorescent.music album:distrokid.com/hyperfollow/rekena/short-stories
Led Chaser circuit ( single chip ) SimpleTronic 2015-07-06 | There are many different Led Chaser circuits, and most of them use one integrated circuit for the sequence ( typically CD4017 ) and another for the clock ( 555 ) . This led chaser uses only one chip for both functions. CD4060 is a 14 stage ripple binary counter with an integrated on-chip oscillator section. Decoding is accomplished with simple diode gates (DTL). Output transistors can drive up to 30 leds per channel.Music album:distrokid.com/hyperfollow/rekena/short-stories
Brushless DC electric Motor ( Hall sensor controlled ) SimpleTronic 2015-06-30 | Build this Hall sensor controlled DC brushless electric motor. Simple circuit with Hall sensor , 1 OP amp and 2 cmos NOR gates detects position of rotor to activate electromagnet in the exact moment .Music album:distrokid.com/hyperfollow/rekena/short-stories
Magnetic Pendulum ( Hall sensor controlled ) SimpleTronic 2015-06-26 | Hall sensor controlled magnetic pendulum . Hall effect sensor detects the motion of the pendulum over it and turns on the electromagnet for a time period of 20mS . Electromagnet north pole repels pendulum north pole and causes its oscillation . Simple circuit uses only 1 OP amp 2 cmos NOR gates and 1 mosfet .SUBSCRIBE ! : bit.ly/39xiWhiMusic album: https://spoti.fi/2UzoWBO
Clip indicator circuit for ANY power amplifier SimpleTronic 2015-06-14 | Add a LED clip indicator to any power amplifier . This simple 2 transistor clipping indicator circuit will detect clipping to prevent distortion and avoid speaker damage. Peak hold will detect short transients.CAUTION:Higher power amps use high voltage supplies and dangerous voltages may be present even after powering down. Extreme caution should be taken to avoid dangerous electric shocks.Here you will find the circuit optimized for high power amps:http://www.instructables.com/id/Clip-Indicator-LED-for-any-power-amp/?ALLSTEPSsubscribe to my channel: bit.ly/2UOKolmother projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6oMusic album: https://spoti.fi/2UzoWBOIndicador de recorte (clip) para amplificador de audio.
Refrigerator Open Door Alarm circuit SimpleTronic 2015-06-07 | Open door alarm will sound a few seconds after opening. Save energy and keep food fresh. Application for this alarm is not limited to refrigerator: Put one in your room closet or desk drawer to protect your privacy and belongings. Battery drain when dark is very low (2uA) and has practically no influence on battery life.SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1VAlarma de puerta abierta de refrigerador - heladera.
8 LED CUBE ( random flash - NO microcontroller ) SimpleTronic 2015-06-02 | 8 LED cube - Random sequence generated by Linear Feedback Shift Register ( LFSR )music album:distrokid.com/hyperfollow/rekena/short-stories
10 Year Led Flasher ( version 2 with boost converter ) SimpleTronic 2015-05-25 | This Led Flasher circuit will blink for 10 years on a single 1.5v AA cell . Led flashing circuit has a very low average current draw . It combines a CMOS CD4001 with 1 transistor and an ordinary power supply transformer. This circuit is a variant of the first one I published, works as a boost converter and can drive 5 or more leds in series.Music album:distrokid.com/hyperfollow/rekena/short-stories
Touch Sensitive Toggle Switch circuit SimpleTronic 2015-05-17 | This Touch Sensor Toggle switch circuit is based on CD4077 xnor gate and CD 4013 D-register . Touch sensor switch can also drive power mosfets , transistors , relays and triacs .Music album:open.spotify.com/album/1MJ3olFThqJgZTOumlczuX
RGB Led Color mixer - Pulse Width Modulation ( PWM ) SimpleTronic 2015-05-03 | This simple RGB LED mixer circuit uses PWM ( pulse width modulation ) to control brightness of LEDs . Uses only 1 TL084 op-amp IC & 2 transistors, NO Arduino or Pic . Led controller can drive power leds with minimum dissipation by adding output Mosfet or Transistor .SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1VMezclador de colores para LED RGB por modulación de ancho de pulso.
10 Year Led Flasher SimpleTronic 2015-04-27 | Led flasher will run for 10 years on one 1.5V AA cell . Modified " Joule Thief " circuit plus CD4001 integrated circuit make it possible. Led blinker circuit draws only 35uA average current .music album:distrokid.com/hyperfollow/rekena/short-stories
Touch Sensitive Switch with Xnor 4077 cmos gate SimpleTronic 2015-04-19 | Build this Touch sensitive switch ( touch sensor ) Touch switch circuit built around CD4077 cmos Xnor gate . Output of Xnor gate is 0 only when both inputs are different . Feeding both inputs of gate with the same clock gives a constant output of "1" . By touching unconnected terminal of capacitor , you "unbalance" the Xnor gate inputs and this produces negative-going pulses . Phase shift on that input makes the signal different . For best operation , touch sense circuit should be grounded .music album:distrokid.com/hyperfollow/rekena/short-stories
Electronic Dice circuit SimpleTronic 2015-04-12 | Electronic dice circuit - How to make an electronic dice with 7 LED display using only 2 Integrated Circuits, CD4046 phase locked loop and CD4017 decade counter . Electronic dice is expandable to any number using single push-button for rolling all dice .Music album:distrokid.com/hyperfollow/rekena/short-storiessubscribe!
FET proximity & motion sense SimpleTronic 2015-04-06 | This simple circuit will sense proximity & motion up to 1 meter using 2N7000 FET , and a few components . How to make a simple proximity sensor with mosfet .SUBSCRIBE TO MY CHANNEL ! : bit.ly/2UOKolm other projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_Y* etch your PCB with the sponge method (fast!) : youtu.be/M0Gy8ISjvhEMusic album:https://spoti.fi/341Ns1VSensor de proximidad y movimiento con FET.
JouleThief Transformer - how to make - DIY SimpleTronic 2015-04-04 | Joule Thief ( blocking oscillator ) transformer building tutorial - joule thief circuit diagram - step by step tutorial for winding your transformer. diy coil - transformer - inductor .subscribe to my channel ! : bit.ly/2UOKolmother projects:* make your printed circuit without iron/laminator: youtu.be/HBIxvwZ_0og* make a 10 year led flasher (on 1 AA cell): youtu.be/DOajZVz8n6o* make a 512 color (random) led flasher : youtu.be/GT_S_HMRK_YMusic album: https://spoti.fi/2UzoWBOComo fabricar el transformador para el "ladron de julios" con nucleo de ferrita.
