Learn LCD Module Control Over the IR Links

If you involve yourself in the HSDL-1100 based IR transceivers and a KS070B LCD display module, you’ll gains lots of experience in this niche. Through the above project, you’ll learn: Controlling an LCD module Serial communication between two PIC microcontrollers Making this work over an IR link The serial protocol can supports addressing of up to 32 devices over a shared media. The packets consist of 16 bits, which shown below: Byte 0 Byte 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 P0 P1 Device ID C/D Command/data bits P0 – inverse parity of all even numbered bits [2-14] P1 – inverse parity of all odd numbered bits [3-15] Device ID – ID of the target device. C/D – Code or Data; if “1”, following byte contains command; if “0”, following byte contains data. As you refer to the above diagram, you’ll see: “T” is used for compared the times between the following pulses. “0” – transmitted time between pulses less than T; “1” – time between pulses greater than T. Continue reading

Break Timer In Your Mac

Wishing you has a signal that will tell you to get some fresh air, after long hours of sitting in front your computer? Well, we recommend you this Mac Compatible, “Break Timer”. Material needed: Microcontroller board OS X Software Hardware that connecting to microcontroller Note: For the microcontroller board, you need to go to this site. Click on the Mac OS X link, extract the file after downloading, and drag the folder to your Applications folder. Lastly, just install the board’s drivers. Hardware Connecting Firstly, you must have two pieces of wrapping wire and strip the wires with wire striper about one inch of each end. Wrap one wire with wire wrapping around each of the pins at the sensor. Then, strip an inch from the other end of each wire and wrap the end of the other wire to the short end of that pin. After that, plug the end of the resistor into the hole on the Arduino Analog in 0, while male header into the hole marked 5V and others to GND. Finally, connect it with USB… Continue reading

Is Paintball, Not “Painball”!

Looking forward to play the paintball game, but fear of the pain when got shot? Now, with this paintball safety system, you don’t need to afraid the pain anymore! This sophisticated paintball safety system consists of the sensor circuitry and the microcontroller code. The main purpose for this design is to ensure that the paintballs travel in a safe speed, which under 300 feet per second. The main function of sensor circuitry: Base on the “beam break” concept for triggering the microcontroller. IR diodes always in on position and will be saturated the phototransistors. It will automatically detect the balls or no balls condition, where if with ball is 4.2V while no ball is 0.1V. If timer overflows and the ball was took longer time to reach the rear sensor (>1.666 miliseconds), this will considered as a “PASS” condition as it’s speed less than 300 feet per second. If otherwise, then it is a “FAIL”. Green LED indicates, “PASS” while red LED means, “FAIL”. Both of them will stay on for two second until the reset. Continue reading

Grab This Open GPS Tracker Today

Are you feeling afraid or nervous when you find yourself getting lost in a place you have never been before? Do not let this embarrassment situation happen to you again! You can easily overcome the above manner if you have an Open GPS Tracker. You must wondered, any special features for this GPS tracker. Well, GPS tracker is a small and smart device that plugs into a $20 prepaid mobile phone. It’s consistently respond to the text messages and even your recently location by Google Maps or Wikimapia. The three main components need for GPS tracker: Tyco Electronics A1035D GPS module Motorola C168i AT&T GoPhone prepaid mobile phone Atmel ATTINY84-20PU AVR microcontroller Another good news is the phone is currently available FREE, that is mean you can get the phone without any contract on it. If you want to know more how to get it, then you need to check out the ‘forum‘ for detail before May 10! You can get relief and no more ‘hide and seek’ with this GPS tracker. Continue reading