Android Phone Controlled Robot using Arduino

Contributor: 
Deepesh Verma

The Android phone that stays in your hand most of the time is useful in many other applications apart from Whatsapp, Facebook; appliances; monitor your health parameters. How it would be if it can control a Robot, which can assist in your daily work. With this project you can make a robot that can be controlled by an Android Phone, over Bluetooth Communication.The robot is built around Arduino interfaced with a Bluetooth receiver to receive commands from Android Phone.The basic Block diagram of the system is as:

The operation being very simple, as the app on the phone transmits data serially over a Bluetooth connection established between it and the receiver.The commands are received and are processed according to the program fed into Arduino, upon which the further controlling is done. Motors are given instructions, in the way user commands them through his phone.

How to use UART in ARM Cortex-M3 LPC1768

Contributor: 
Mahesh

This Project demonstrates how to use UART in ARM Cortex-M3 LPC1768. In this project we are doing serial communication between PC and LPC1768 Board using MAX232. We are using 9600 baud rate for serial communication. Here data will be sent by PC (Teraterm) and on the other end we are receiving data in LPC1768 Microcontroller Board. Data received in microcontroller now will be sent back again to PC to show on terminal.

Zigbee Based Alerting System for Mine Workers

Contributor: 
Durga Prasad Kolluri

Industrial safety is one of the main aspects of industry specially mining industry. In the mining industry safety is a very vital factor. To avoid loss of material and damaging of human health, protection system as well as faithful communication system is necessary inside the underground mines. To increase both safety and productivity in mines, a reliable communication must be established between workers, moving in the mine, and a fixed base station. Inside mines, the wired communication system is not so effective, because of wires can be damaged inside mines. In this project we are going to monitor the Mine parameters like abnormal gas, temperature and fire sensors to avoid the harmful gas or high temperature attacking the Mine workers. In this  project  to avoid loss of material and damaging of human health in mine workers because of using text to voice converter .The text to voice converter gives continues information inside the mine workers and also cameras are used to video monitoring

Remote Temperature Monitoring System

Contributor: 
A. M. Bhatt

The temperature controller or monitoring system is one of the most required systems in almost all processing and manufacturing industries. Here, the given application demonstrates completely new kind of temperature monitoring and control system. It monitors temperature, display it, send signal wirelessly to remote monitoring node and give alarm signal to this remote node when temperature exceeds beyond critical limit. 

Real Time Clock with Temperature using Arduino

Contributor: 
Saddam khan

Real time clock is a digital clock which display real time on 16x2 LCD display. Here in this circuit we can also set alarm and time. The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I²C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply. Timekeeping operation continues while the part operates from the backup supply.

How to Get GUI on Raspberry Pi

The Raspberry pi is a single board minicomputer which comes without input and output units, but with connectors for them. The board is designed to be easy to use and available at the least possible price. The main intention of releasing such a board is to provide computer education to the remote schools where the PCs are not very commonly used. The idea is to use the TV screen as the display unit for the Raspberry pi board and hence converting the TV into a computer.   

The board is hence provided with a RCA connector which can be used to connect it directly to a TV screen which is based on PAL and NTSC standard. The board also has a HDMI connector output which can be used to connect the board to a HD TV, but there is no VGA connector.

 

Insight - How Does an Odometer Work

Written By: 
Bijal Parikh

Are you all set to hack the km readings displayed on your vehicle dashboard!

Let us explore the science behind the working of an Odometer, a mechanical device which shows the distance traveled by your vehicle in digits. With traces of its invention found in history since 15BC,  it has been reinvented since then in different forms.

 We all have seen the odometer working. When the last digit changes from 0 to 9 it moves the adjacent digit by 1 unit and so on. Ever wondered what causes digits of an odometer to change the adjacent digits by precisely 1 unit? How does a combination of  rings interconnected with each other by means of gears  designed to perfection can display the distance traveled by a vehicle to such an accuracy?

Are you all set to empower yourself with the knowledge to crack the secrets behind the  Km reading of your vehicle? Read ON....