Circuit Lake

Electronic Project and Circuit Collection

Timer


Completely Auto-Shutoff Circuit, ATtiny85

May 02, 2013 By: admin Category: AVR, Timer No Comments →

MCU based auto power off for battery powered device

Auto power off is must have feature for battery powered device to help extend battery life. These days, many modern battery powered devices has an automatic power off function. But, if you have battery driven device with no auto-shutoff you can add auto power off using simple circuit designed by Kyle Wengenroth below.

Programmable Web-Based Sprinkler Controller / Timer

September 11, 2012 By: admin Category: Arduino, Control, Timer No Comments →

Sprinkler Controller System

OpenSprinkler is ATmega328-based programmable sprinkler controller / timer. It has ENC28J60 Ethernet controller for web-based scheduling and monitoring, through either wired Ethernet connection or Wi-Fi connection. With some modifications, you can used it to control other electronic devices, such as water pumps, home lighting, power line sockets, through the web interface. The MCU is programmable […]


AVR Switch Timer

August 10, 2012 By: admin Category: AVR, Microcontroller, Project, Timer No Comments →

Switch Timer Project

To get better UV expose, Andrianakis has built new Switch Timer that will turn of his UV exposure box after some time. The timer uses ATmega8 as main processor and two 7-segments LED as display. There are two buttons for set and start the timer. When time runs out, microcontroller switches relay and also sounds […]

Network Equipment Resetter

July 17, 2011 By: admin Category: Control, Microcontroller, PIC, Project, Timer No Comments →

DIY network power resetter

This network power resetter is built based on PIC16F628 microcontroller. It controls a solid-state-relay that connecting 110VAC Power line with a satellite internet receiver or routers.