PC Interface to Six Digit Display via USB Port

we have designed a digital display with USB interface to PC. This device is MODBUS compatible and data sent via USB interface from PC can display any value.

The attached photo is showing count for AMITYUNI page on facebook.

A sample program in PC picks up like counter for a facebook page is here

https://github.com/facebook/python-sdk Python + facebook SDK

http://pastebin.com/AgffVnUf - Application program as created by Anuvrat Parasher of Amity Univeristy Computer Science

http://kovshenin.com/archives/facebook-fans-count-using-python-and-the-graph-api/ - PC program was developed by using information from this link

http://pastebin.com/c1a3eN7Q Program for display of date and time with dot point is here

MODBUS specs for this device are on our facebook page and can be seen here https://www.facebook.com/gvcsystems#!/notes/gvc-systems/tech-specs-of-usb-2-display-devices/213868321973943

Arduino Based Starter Kit with LCD + IR + USB PORT + RTC + Sensors + LED DRIVERS

We have designed a PCB with following features

• Arduino ATMEGA 328 with boot loader for programming
• Alphanumeric LCD (20 Char X 4 Lines)
• Real Time Clock with battery back up
• I2C based EEPROM 
• Infra red sesnor + Infra red remote handset with more than 21 keys
• Light Sensor
• Temperature sensor
• USB port to connect to computer / program

We have also created test programs for quick starting up -

• Lab 1 - Send "Hello World"  to PC thru USB port
• Lab 2 - Display "Hello World" on LCD and PC 
• Lab 3 - Same as Lab 2 +  Display counting from 1 onward on LCD as well as PC
• Lab 4 - Same as Lab 3 + counting starts from key pressed on PC Keyboard
• Lab 5 - Accept Hours and Mins from PC. Display Digital Clock in Hours:Mins:Secs in 24 hour formar
• Lab 6 - Read time from battery backed up RTC. Display time on LCD and PC, Time setting from PC when needed
• Lab 7 - Decode key pressed on IR Remote handset based on uPD6121. Display all four codes on LCD/PC.
• Lab 8 - Sequential switching on of seven leds one by one
• Lab 9 - Remote controlled switch. Control of seven leds by IR Remote. 

All these nine labs are here in a single zip files
http://www.box.net/shared/2bys2bz59o


PCB Design, Circuit Design and BOM are here

http://www.box.net/shared/2gs0u7uepu

Arduino based Traffic Light Dual Color Count Down Timer

A construction article by Vinay Chaddha based on his commercial project of traffic light is published in May 2011 issue of Electronics For You.

This project is the advanced version of count down timers used in Delhi/Other metros.

The articles has complete software, hardware, construction details and even the programming instructions.

This is the sixth article by Vinay Chaddha. The other five are

1. Set Top Converter - June 1997
2. Caller ID for landline - Apr 1999
3. Remote Control Audio - Sep 1999
4. Access Control Systems - Oct 2002
5. Beverage Vending Machine - Oct 2006

We also plan to share few more designs based on same hardware but with different functions. The ones in pipeline are

• Parking Counter
• Gaming Timer
• MODBUS controlled Display Unit

Arduino Lab 2 0

View more documents from Vinay Chaddha.

Arduino Lab 1 1

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Arduino Lab 1 0

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Arduino Labs

View more documents from Vinay Chaddha.