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    electronics electronics Presentation Transcript

    • Electronics design pcb production ● Producing the hello circuit boards: ● The assignment given here is producing a circuit boards that sends a message 'hello world' / the PCB board hello.echo.MTA.45. ● The second one was to produce and programm a circuit board which have LED and add a button for it which will be integrated with one of the keys from the computer./hello.echo MTA 44. -Since I have no that much background on electronics I needed to study a lot about it.
    • Electronics design production ● Sending it to the modella machine: First I opened the Cad py file and opened a hello 45 then opened a file from the input tool path. I uncommented the highresolution for machining.Then on the CAM tool I opened the machine i.e. a modella machine. Then I selected the tool diameter with 1/64 for cutting, speed x4,y4, contours -1 and changed the tool on the machine just as I set it on the CAD. Since I my board is sticked in the corner I put the position x2y2. After contouring I sent it to the machine.
    • PCB Production ● Components and Materials needed: After printing the board I changed the setting and tool diameter by 1/32, to cut it. After I made the board out I collected the components. Components: ● 1. The printed circuit board ● 2.microcontroller = tiny 45 3.capacitor = C1 3.3UF ● 4. Resistor = R1 10K ● 5.voltage regulator=IC 2 ● 6. connectors=4 & 5 legged Materials: ● Soldering iron ● Soldering wire ● Copper for cleaning brass and Clip
    • PCB Production ● Soldering 1. Stick the circuit board to your table by double sided tape -but not tightly because if it is tight it might be impossible for you to change the direction during soldering. 2. According to our/fablab Bcn experience, the best way to join the components to the circuit board is to melt and drop the soldering wire on each point of *the circuit board first. This is because the wires will melt so quickly that you cant fix it no matter you tried to be quick. 3. Stick each components carefully *on the tip of each drop and press the component's leg/tip by the solering iron. If you think the legs are not fixed well you can add more drops of soldering wire on the top of its leg.
    • Embeded Programming ● Producing the LED circuit board: First I opened the Cad py and input a hello 44.MTA.cad for printing the board. Then used a setting the same way like the hello 45 MTA. Downloaded from http://fab.cba.mit.edu/about/fab/ After the production I needed to assemble the components.
    • ● Producing Electronics 1. Microcontroller- Tiny 44 2. Resistor1- R10K 3. Resistor2- R 1K 4. Resistor3- R 4.99 5. Capacotor- 3.3UF 6. Voltage Regulator- 5V 7. Resonator -20 MHZ 8. D1- 4.7v 9. D2- LED 10.The printed circuit board ● On this part being aware of the polarity of the capacitor, LED and the resonator is very important, there is a line to distinguish that. I have been changing the direction and when programming it will not even read your board or the connection.
    • ● Programming with Cad There are 3 fundemental steps -Sending the power to the circuit board through the serial port, -Sending the information from the the computer to the board through the parallel port, -Reading the programmed information from the board/ 'mini computer' through the serial port. ● Adding the button: ● This part was the hardest for me and still is because after making my third circuit board it doesnt work yet. I am still working on it so I hope after many trials i will sucseed.