In this project we are going to run a unipolar stepper motor using 555 timer. Apart from 555 timer we also need IC CD 4017 which is a decade counter IC. By Ankit Negi Any unipolar motor can be connected to this circuit for performing specific task, though you need to do some small changes […]
Search Results for: timer
Steps to Build a LCD Socket Timer Circuit
In this post we are going to make a digital socket timer using Arduino whose countdown time can be witnessed via 16 x 2 LCD display. By Girish Radhakrishnan Introduction The proposed circuit is general purpose timer with display and few buttons for setting the time. Once the time is set output goes high and […]
Touch Activated Lamp with Delay Timer
The proposed transformerless touch activated 220V delay lamp switch circuit enables the user to momentarily switch ON a table lamp or any other desired bed lamp during night time. By Tina Kamat How the circuit Works. Referring to the circuit above, the four diodes at the input form the basic bridge rectifier circuit for rectifying […]
Cell Phone Charger with Timer
A simple cell phone charger with timer circuit is presented in the following article, which could be used for charging a given Mobile phone for a specified predetermined length of time. The idea was requested by Mr. Saad. Timer Controlled Smart Phone Charger Could you design me this charger circuit ? Input 230V 60 Hz, and […]
Timer for Fitness Gym Application
In this post we learn how to make a timer circuit for fitness, or gym workout application. The idea was requested by Mr. Jan. Adding Delay Timer to Gym Equipment I need a circuit diagram for a timer which is used in a fitness gym. It consists out of 5 x incandescent (5 channels) 220V colored […]
Submersible Pumpset Timer – Circuit Diagram and Working
The post details a timer circuit for submersible borewell pumpset which alternately switches the pumpset ON/OFF at a predetermined rate in order to allow the ground water sufficient time to restore at regular intervals and to ensure a consistent water supply to the attached overhead tank. The idea was requested by Mr. Siva. Switching Submersible […]
IC 4060 Timer Latching Problem [Solved]
The post talks about an IC 4060 timer circuit problem implemented in a coffee wending machine, in which the circuit simply stops working each time its stipulated delay period is lapsed, even after a complete power switch OFF and ON. The question was presented by Mr. Kenndy and was solved through the following email discussion: […]
IC 555 Timer for Switching Two Alternate Loads with Predetermined Delay
In this post we learn how to make a simple IC 555 based alternate relay timer circuit for toggling a couple of loads alternately with a specified length of delay, as determined by the calculated values of the relevant components. The idea was requested by Mr. Sanjoy. Switching Two Loads Alternately I am a regular […]
Autoclave Heater Controller with Timer
In this article we learn how to make simple, accurate autoclave heater controller circuit with timer. The idea was requested by Mr. Rajjab. Technical Specifications This is Rajab Ali from AfghanistanWe need a circuit for controlling an autoclave for sterilization in hospital the machine works as. when starts cycle by pushing start button it should […]
Water Saving Irrigation System using Timers
The article presents a simple water saving irrigation system circuit idea which can be used for implementing an efficient water management and control in farms and irrigation systems. The idea was requested by Mr. Ajinkya Sonwane, Mr. Akshay Kokane and Mr. Kunal Raut, studying in AISSMS IOIT College of Engineering. Circuit Objective As per the […]
Bathroom Lamp Timer with Buzzer
The simple bathroom lamp timer circuit features a delay OFF timer which switches OFF the triggered lamp after a set predetermined time delay, additionally the circuit also includes a delay ON timer circuit which is appropriately set such that a warning tone is generated a few seconds before the lamp is about to shut off. […]
LED Timer Indicator for Board Games
The article presents a simple LED indicator timer circuit which can be used with board games for indicating the elapsed time or the time consumed by the player to complete his or her turn. The idea was requested by Mr. Shane Robins. Technical Specifications Hope all is well with you. I am relatively new to circuitry and […]
3 Stage Industrial Camshaft Timer
The post explains a simple sequential timer designed for implementing a specified set of actions involving a 3 step relay activation which in turn is used for executing the desired mechanisms. The idea was requested by Mr. Ali. Technical Specifications I look at your site occasionally and this time round I am looking for a […]
Sequential Timer Circuit using Transistors
In this post we learn to make a simple sequential timer generator circuit which can be used for getting a sequential triggering of a connected load, or can be simply used like a sequential LED bar graph effect generator, using only transistors. The idea was requested by Mr Babusan. Technical Specifications Is it possible i […]
Fading LED Light Timer for Fish Aquariums
The post details a simple fading LED light effect generator circuit which can be set for operating in fish aquariums in the prescribed manner for a predetermined length of time. The idea was requested by Mr. Jaco. Technical Specifications My name is Jaco and I am from sunny South Africa. I have an aquarium that […]
How to Make a Classroom Debate Timer
In this post we learn how to make a simple classroom debate timer circuit which can be used to illuminate two sequentially toggling lamps to indicate the start and finish of the lecture time delivered by the respective members in the class. The idea was requested by Animale. Technical Specifications I’m trying to make a […]
Pneumatic Timer Schematic and Working Details
The article explains a simple two step IC 555 timer circuit which can be used for sequentially operating any specified industrial mechanism system, in this application it’s used for operating a pressurized pneumatic ball throwing arm. The idea was requested by Mr. Ray Strong. Technical Specifications So glad I found this site, might be my […]
Delay Timer Based Motor Speed Controller
The post details an delay timed adjustable motor controller circuit so that the motor can be assigned a fixed predetermined operating time, or delay OFF time. The idea was requested by Mr. Cribey Technical Specifications I really like your website. It is very helpful for so many people. I am trying to control a 36RPM […]
Make this Geyser Water Heater Timer with Automatic Switch OFF
In this post we study a simple water heater timer controller circuit which can be used in bathrooms for automatically switching OFF a geyser or a water heater unit after a predetermined time period as preferred by the user. The idea was requested by Mr. Andreas Technical Specifications Many of us when we need hot […]
Water Flow Valve Timer Controller
The article details about an automatic water flow controller timer circuit which switches a valve mechanism ON/OFF as per a set predetermined timing sequence. The idea was requested by Mr. John Clarke. Technical Specifications I’ve seen your site and designs and wondered if you could help with a controller I’m trying to design to control […]