Assignments + part list [NEW]

Dear readers



We had a second meeting with our teacher on monday.
In this meeting he asked us to:
1) Put our calculations on the blog (that is already done by Stef Ingels)
2) Make an electrical scheme for the PCB we will make. I will do that myself en hope to finish it by or in the coming weekend.
3) Finish our IR transmit and receive software (and put this on the blog with a explanation)
4) Put our parts list on the blog

Here is the result of the fourth assignment:

Part Price Amount Price total Website Front 'wheel' 4,69 1 4,69 http://www.pololu.com/search?query=954&x=9&y=4 Engine + Gearbox 12,34 2 24,68 http://www.pololu.com/catalog/product/999 Rear Wheels 6,15 1 6,15 http://www.pololu.com/search?query=1420&x=0&y=0 Transistors 0,25 8 2 http://be.farnell.com/fairchild-semiconductor/bc547b/transistor-npn-to-92/dp/1017673 Battery holder 0,92 1 0,92 http://www.pololu.com/search?query=1145&x=9&y=7 Microcontroller 4,19 1 4,19 http://be.farnell.com/atmel/atmega328-au/mcu-8bit-avr-32k-flash-32tqfp/dp/1972086?Ntt=1972086 H-bridge 2,97 1 2,97 http://be.farnell.com/rohm/bd6225fp-e2/h-bridge-driver-18v-0-5a-hsop25/dp/1716263 Resistors 22kohm 0,21 8 1,68 http://be.farnell.com/te-connectivity-cgs/352022kjt/resistor-1-watt-22k-5/dp/1265186 Resistors 680ohm 0,21 8 1,68 http://be.farnell.com/te-connectivity/3521220rft/resistor-2512-2w-220r-1/dp/2117486?Ntt=2117486 IR LED 940nm  0,95 16 15,2 http://be.farnell.com/knowledge-on/kel5002a-a/ir-emitter-5mm-940nm/dp/4890929 Christal 0,37 1 0,37 http://be.farnell.com/abracon/abl-20-000mhz-b2/crystal-20m-18pf-cl-hc49-4h/dp/1611779 Jumpers 0,12 2 0,24 http://www.gotron.be/kortsluitjumper-p2-54.html Spanningsregelaar 4,92 1 4,92 http://be.farnell.com/national-semiconductor/lp2954ait/ic-v-reg-ldo-5-0v-2954-to-220-3/dp/9494847 Capacitors 1µF 0,26 1 0,26 http://be.farnell.com/avx/08053c105k4z2a/capacitor-0805-x7r-25v-1uf/dp/1833845 Capacitors 2,2µF 0,7 1 0,7 http://be.farnell.com/avx/08053c225kat2a/capacitor-2-2-uf-25v-0805-x7r/dp/1657931 Capacitors 22pF 0,13 2 0,26 http://be.farnell.com/avx/08051a220jat2a/capacitor-0805-22pf-100v/dp/317500 As you can see I kept the number of suppliers as low as possible. This reduces transportation costs which makes the finished product cheaper. It also makes it easier to order, you don't have to visit a lot of different sites.  I will make the electrical scheme with a program called 'eagle'. I will post the file and a screen shot later this week. As for out joint venture, as Stef VP said earlier we would take the IR communication an the other team the sensors. Rene will post a short message about the sensors later on. Your Blogmeister Giete (Tis list has been updated on 26/11/2012)