"555"-tagged Public Circuits

Minimal 1:1 duty cycle 555 circuit PUBLIC

Another 50:50 duty cycle 555 circuit.

by Didactech | updated December 01, 2012

555   oscillator  

MOSFET LED strip switching - with 3.3V control, using 555 timer PUBLIC

WIP on using a 555 timer IC to drive an IRF540 MOSFET for 12V LED strip PWM without needing the microcontroller to supply fast PWM. INCOMPLETE.

by ringerc | updated June 16, 2019

555   driver   mosfet   pwm  

NE555 Experiment #1 PUBLIC

Erste Schaltung aus dem MAKE:Elektronik Buch zum NE555 IC. Siehe Seiten 152ff.

by metawops | updated February 23, 2013

555   555-timer   ne555  

NTC converter for fan speed control PUBLIC

A simple converter for a NTC thermal sensor to a voltage signal. The DC-Sweep simulation is used to pick the desired resistance value in series to the NTC.

by Sancho_P | updated November 07, 2012

555   fan-speed-control   newbie   ntc   pwm  

NTC fan speed control PUBLIC

This is the complete circuit to control the mini fan in my Apple’s Time Capsule by a NTC sensor and a dual timer ICM7556IPD (CMOS). The project basically consisted of three parts because I did not...

by Sancho_P | updated November 13, 2012

555   behavioral-sources   fan-speed-control   newbie   ntc   pwm   time-capsule  

OneShot555Timer PUBLIC

555 used as a "one shot" timer.

by vanderghast | updated March 15, 2023

555   one-shot   timer  

oscilador 555 PUBLIC

by fprudente | updated February 25, 2013

555   oscilador  

PC Keyboard multiple key press (MSM) PUBLIC

This circuit provides a single pulse output at each transition of the switch operation after activating SHIFT and/or CTL.

by Didactech | updated December 07, 2012

555   mosfet   pc-interfacing  

PC Keyboard Rotary Switch to Pulse (RSM) PUBLIC

This circuit provides a single pulse output at each transition of the switch operation.

by Didactech | updated December 06, 2012

555   mosfet   pc-interfacing  

Pulswidth 555 dimmer PUBLIC

by mike.h | updated February 24, 2013

555   dimmer   led   pwm  

PWM PUBLIC

Simple potentiometer controlled PWM with the classic 555 chip

by pkilian | updated March 07, 2012

555   pwm  

PWM LED Dimmer - 12V 8A (96W) PUBLIC

Reverse Engineered PWM LED Dimmer from eBay 12V 8A (96W) 96W12V-TM1-1 http://www.ebay.com/itm/251257623888

by serisman | updated June 06, 2013

555   dimmer   led   lm358   pwm  

PWM Motor Control PUBLIC

by Phozz | updated July 19, 2012

555   control   fan   motor   pwm   speed  

PWM Motor Driver PUBLIC

555 pwm circuit for driving a bunch of PC case fans. Pulse width should be well above the 20 kHz audible range.

by robgig1088 | updated March 04, 2012

555   mosfet   pwm  

Servo Controller PUBLIC

Simple circuit to control servo motor with a potentiometer.

by solderspot | updated December 11, 2013

555   controller   servo  

TASER/STUN GUN SELF DEFENSE WEAPON PUBLIC

Two switches one for charging one of the electrodes the other for releasing them both. For better but more uncontrollable power use 1 resistor.

by bazza12314 | updated April 05, 2013

555  

Test 555 monostable PUBLIC

by Bogey_Jammer | updated May 14, 2013

555   monostable  

traffic Light PUBLIC

by nkeck | updated February 11, 2015

555   led   light   logic   not   traffic  

Turn Signal System With Brake And Emergancy Flashers PUBLIC

Automotive Brake Light System Using CMOS Logic. includes brake turn signals and emergency flashers .

by epluznick | updated August 11, 2013

555   and   diode   flyback-diode   inverting   logic-gate   nor   pull-down   relay  

Twin T drum osc with 555 trigger PUBLIC

555 pulse generator and Twin-T style oscillator for analog drum synthesizer.

by RyanRichardson | updated March 23, 2013

555   drum   oscillator   pulse-generator   synth   twin-t