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  1. 1. 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.
  2. 2. 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.
  3. 3. 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
  4. 4. 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.
  5. 5. 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 After the production I needed to assemble the components.
  6. 6. ● 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.
  7. 7. ● 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.