01

Software

• Fusion 360
• Eagle
• LighShot
• Gimp
• AutoCAD

Download File

• Archives Week 06 (files)

02

Assignments

Group Assignments (1)

• Use the test equipment in your lab to observe the operation of a microcontroller circuit board.

For this assignment, since they were delayed in the weekly planning and the arrival of the quarantine by COVID-19, it has not been possible to carry out what was proposed on the scheduled date.

We have not yet been able to access the FabLab, nor the corresponding equipment to carry out the physical practices, which in my case are very necessary since it is not the same as simulating situations with characteristics given by default.

Individual Assignments (2)

• Redraw an echo hello-world board

For this week I must remake a PCB and add a button and a led and test the operation, for which we must follow the following:

• Create a new file in Eagle.
• Choose Schematic Project.
• Select “Use to choose library.
• Download the Fab Library to Eagle from Fab Academy.
• Open this library and choose the necessary components using Add.
• The first one in my case will be ATtiny 45 and fit it on the PCB.
• Choose the following components and add them as the previous step.







• Component list:
• IC ATtiny 45 (ATTINY45SI, fab 2).
• Switch (fab, 6 mm_switch).
• Red led (LEDFAB1206, fab 1206).
• 1 K Resistor (fab 2, 1206 FAB).
• 10 K resistor (fab 2, 1206 FAB).
• Capacitor 1uF (fab 2, FAB).
• 1x6 connector (with-istb).
• 1x6 connector (with-istb).
• Click on convert to SCH BRD, once we have all the components.
• In the layout with a black background, our work appears in orange and we proceed to place these within the black box by dragging and dropping.
• Here we begin to configure the design rules in the Edit tab.
• In clearance choose 1/64 bit to trace and 16 mils.







• Once the parameters have been configured, you need to run ERC-Electronic Rule Checker by clicking with the right mouse button.
• The switch and led connections are:
• Switch: connection to pin 7 and to gnd.
• Led: connection to pin 2 and gnd.
• Before proceeding to export the images we must check that everything is fine, for this we give look for TOOLS / ERC and it shows us the errors or warnings that weigh on the work; if everything is corrected we export the schematics. In this particular case what I was missing was to put the name to pin 4.







• Once the design is finished, we proceed to export the interior path and the exterior path, according to their layers, in two different .png files.
• In the case of the interior roads, we must turn off almost all the layers and also the one that represents the cut layer of the piece, to export it, give it a name when exporting, location in folder, that is monochrome and in the full area
• In the case of the cut layer, all layers are turned off and the previous procedure is followed, naming the png file associated with the word cut to identify it in relation to that of the tracks.

With the images exported from inside trace and cut we open the fab module and perform the same work process described in week 4 and to continue we save the cutting gcodes on the cnc.

At this time we are still waiting for the quarantine conditions to improve so that we can attend FabLab and continue with the physical manufacture of the assignments.