Call Acknowledged !
This circuit could be used (depending on your circumstances) by a gentleman to summon his butler, a manager his secretary or as in the author`s case to call the...
Night Light Saver
A Microchip PIC12C508 8-pin CMOS Microcontroller turns a night light on and off with preset time everyday. Save Energy, No EMI, No Battery, Built-in Lamp Fixtur...
rtc circuit
A Miniature Real-time Controller controls night light, A/C, household appliances with programmable scheduler. Modified source code and hex file for year 2002 re...
Temperature and Humidity Logging Over Ethernet I
A project on temperature/humidity logging a couple of years ago. In that project I logged the temperature and humidity readings in my basement lab over the cour...
Arduino Whole House Telephone Intercom
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PICAXE 08M control of audio/video cabinet cooling
This is a fan controller for an audio/video cabinet. It uses a PICAXE 08M and a DS18B20 temperature sensor. The fan is turned on at 30 degrees C (~86 F) and off...
Water Recycler (Grey Water)
The area that I live in has been in a drought for a year or more. As such we now have water restrictions on washing the car, watering the garden etc.....
Space heater controlled by digital thermostat Schematic
Here is a rough schematic of the circuit (also my first experience with Eagle!). Notes: Only the W1 output of the thermostat is used. C is the common.....
Arduino Audio Triggered Power Switch
Ever wanted your home entertainment or sound system to power up itself when plugging in your iPod or other portable MP3 player? Watch this video to s.....
Domestic And Industrial
This is a simple and inexpensive clap operated switch, which uses only four transistors and resistor/capacitor network. The name of the project itself suggests ...
X10 wireless transmitter
My present system is a dedicated 486 running Homeseer software. The hardware consists of a CM11A computer to X10 interface and a number of appliance and lamp mo...
AT89C2051 Real Time Controller
This is my long history the device that controls my home`s night light, air-conditioner, etc. The device is a Miniature Real-time Controller. The circuit uses o...
Electronic Thermostat and Relay Circuit
A simple thermostat circuit that can be used to control a relay and supply power to a small space heater through the relay contacts. The relay contacts should b...
Thermostat for 1KW Space Heater (SCR controlled) circuit
The heater element (not shown) is connected in series with two back to back 16 amp SCRs (not shown) which are controlled with a small pulse transformer. The pul...
Automatic Water Tank Filler Circuit
This circuit has been very useful in filling a header tank for a reticulated water supply on a farm. Eight troughs are supplied in different paddocks where a la...
Hot Tub Hack
This hack replaces the thermistor (temperature sensor) of a hot tub with an adjustable value that will fool the hot tub controller into thinking that the water ...
Home Electrical Wiring
Whether you are considering a backup power system, want to add another electric circuit, or are going to install a new appliance, it is important to understand ...
Programming
In that article I wrote about how I used an Arduino to create an interface that would allow me to directly control my fireplaces from my home automation system....
Home Automation Using GSM WithCircuit
The goal of the project is to develop a system, which uses Mobile technology that keeps control of the various units of the home appliances, which executes with...
Microcontroller based College Automation System
This project Microcontroller based college automation system , aims to eliminate this problem especially in case of colleges and schools. In this project conv...