light

Night Light Saver

Night Light Saver V5.0 using AT89C2051 Using Atmega

Introduction The Saver V5.0 runs simple clock emulation program, turns a night light on and off with preset time, say 19:00 to 22:00 everyday. The design features low cost, easy installation, no battery backup and no EMI. The AT89C2051 uses external oscillator generated by schmitt trigger gate CD4093, ~680kHz. Reference frequency was derived from 50Hz …

Night Light Saver V5.0 using AT89C2051 Using Atmega Read More »

Building Homie Devices

Building Homie Devices for IoT or Home Automation Using Atmega

This instructable is part of my DIY Home Automation series, check out main article “Planning a DIY Home Automation System“. If you don’t know yet what Homie is, have a look at homie-esp8266 + homie from Marvin Roger. There are many many sensors. I’m covering the very basic ones in order to give reader the requirements to get started building …

Building Homie Devices for IoT or Home Automation Using Atmega Read More »