Team:ESBS-Strasbourg/Results/Device

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<li><a href="https://2010.igem.org/Team:ESBS-Strasbourg/Results/Modelling">
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Modeling</a></li>
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Microfluidics</a></li>
Microfluidics</a></li>
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<a href="https://2010.igem.org/Team:ESBS-Strasbourg/science">
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• A1, A2, A3, B1,  B2 , B3, C1,  C2 and C3: LEDs connectors
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• B1: LEDs band connector
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• Q1: quartz 4 MHz
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• PIC: Microchip PIC 18F452
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• MAX: MAX232
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• DB9: DB9 connector
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• PB: reset button
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• P1: power connector (9 V)
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• P2: 78L05L voltage regulator (5 V)
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• R1: LEDs resistors (100 Ω)
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• RC1: resistor (10 kΩ) and capacitor (100 nF) for the reset
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• C1: quartz capacitor (33 pF)
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• C2: power decoupling capacitor (33 nF)
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• C3,C4,C5,C6: MAX232 capacitors (10 µF)
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Latest revision as of 16:35, 27 October 2010

{|

ESBS - Strasbourg



Lighting device

1. Introduction
2. Printed circuit board
3. Microcontroller software
4. Computer software

  
Let me guide you


Lighting device




1. Introduction


To make the characterization of our biological system we developped a lighting device which can be controlled from a computer. The goal of this device is to create red and infrared pulses which period and duration are fixed by the user in a computer interface.

The lighting part of the device is composed of two parts:
• A LEDs band which is composed of four red LEDs put alternately with four infrared LEDs and used to enlighten a tube
• A box subdivided into a 3-by-3 matrix of compartments, each one containing a red and an infrared LED and used to enlighten independently nine biological materials

These two parts are represented on the following scheme:





2. Printed circuit board


We designed the printed circuit board with Kicad, a free PCB design tool. You can download Kicad at this address:
http://www.lis.inpg.fr/realise_au_lis/kicad/

Here you can download the PCB file of the circuit:


The following picture explains the different components used:



And here is the list of the corresponding components used:

• A1, A2, A3, B1, B2 , B3, C1, C2 and C3: LEDs connectors
• B1: LEDs band connector
• Q1: quartz 4 MHz
• PIC: Microchip PIC 18F452
• MAX: MAX232
• DB9: DB9 connector
• PB: reset button
• P1: power connector (9 V)
• P2: 78L05L voltage regulator (5 V)
• R1: LEDs resistors (100 Ω)
• RC1: resistor (10 kΩ) and capacitor (100 nF) for the reset
• C1: quartz capacitor (33 pF)
• C2: power decoupling capacitor (33 nF)
• C3,C4,C5,C6: MAX232 capacitors (10 µF)
• C7: 78L05L capacitor (330 nF)


3. Microcontroller software


The microcontroller used is a Microchip pic 18F452 which is easily programmable in C language with MPLAB combined to a C18 compiler. The link between the computer and the microcontroller is carried through the serial port.

Here you can download the hex file of the program:


And here are the source files of the software:



4. Computer software


We developped the computer software with Microsoft Visual C++. You can download Express version at this address:
http://msdn.microsoft.com/fr-fr/express/default.aspx

The following picture illustrates the software interface:



Here you can download the software:


And here are the source files:


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