Cellphone Controlled Dog Feeder Circuit

A GSM module and Arduino based dog feeder circuit is discussed in this post. The system can be used for operating a dog feeder mechanism through the owner’s cellphone whenever it may be required. The idea was requested by Mr. Allan Guillermo through one of his comments Introduction Although all domestic animal species are lovable, … Read moreCellphone Controlled Dog Feeder Circuit

How to Interface Cellphone Display with Arduino

In this post we will be learning how to interface Nokia 5110 display with arduino microcontroller and how to display some text, we will also be constructing a simple digital clock and finally we will be exploring graphical capabilities of the Nokia 5110 display. By Arduino Guru  Nokia was the most popular mobile phone brand … Read moreHow to Interface Cellphone Display with Arduino

LPG Leakage SMS Alert using MQ-135 – Get Warning Message in your Cellphone

In this article we are going to construct an GSM based LPG leakage SMS alert circuit using Arduino, which alerts the recipient via SMS and surrounding people via beep, when LPG gas leaks out from the LPG cylinder or if there’s leakage due to improperly closed valve. By: Girish Radhakrishanan Using MQ-135 as the Sensor … Read moreLPG Leakage SMS Alert using MQ-135 – Get Warning Message in your Cellphone

Wireless Cellphone Charger Circuit

In this post we will try to wireless cellphone charger circuit for facilitating a cordless cellphone charging without employing a conventional charger. The Objective Here the cellphone is required to be installed with a receiver circuit module internally and connected to the charging socket pins, for implementing the wireless charging process.Once this is done, the … Read moreWireless Cellphone Charger Circuit

Cheap Cellphone Controlled Water Pump for Farmers

The post presents a cheap cellphone remote controlled water pump circuit which allows farmers (user) to switch ON their field water pump without practically visiting the spot, thus saving precious time and energy for the individual. The idea was requested by one of the dedicated members of this blog. Inexpensive Cellphone Water Pump Starter This … Read moreCheap Cellphone Controlled Water Pump for Farmers

Cellphone Charger Circuit Using Pendulum Generator

This pendulum electricity generator can be used in villages for charging cellphones free of cost just by applying momentary pushes to the pendulum frequently or as desired throughout the day. Pendulum as Free Electricity Generator In one of my previous articles I explained about the high efficiency value of a pendulum mechanism, and how it … Read moreCellphone Charger Circuit Using Pendulum Generator