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Team:ESBS-Strasbourg/Results/Device
From 2010.igem.org
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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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| + | • C7: 78L05L capacitor (330 nF) | ||
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Revision as of 11:53, 27 October 2010
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Lighting device
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 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:  |
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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) |
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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: |
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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: |
