7. Electronics design¶
Assignment¶
group assignment
- use the test equipment in your lab to observe the operation of a microcontroller circuit board
individual assignment redraw an echo hello-world board
- add (at least) a button and LED (with current-limiting resistor)
- check the design rules, make it, and test that it can communicate
- extra credit: simulate its operation
Tools Used at 3DEXPERIENCE Lab at Dassault Systèmes¶
Machines¶
Software¶
Components¶
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6-pin programming header
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microcontroller: attiny44A
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FTDI header
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20MHz resonator
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Resistor (value 10k)
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Button
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Ground
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VCC
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LED (Light Emitting Diode)
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Resistor (value 499 ohms)
Tools¶
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Weller WES51 Soldering Iron
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Curved Tweezers
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Soldering Tip Cleaner
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Carpenter’s Tape
Other Materials¶
- TBD
Group Assignment¶
use the test equipment in your lab to observe the operation of a microcontroller circuit board¶
I did not take photos, though I we used 2 different machines, and I do not rember the names of either of them.
Individual Assignment¶
redraw an echo hello-world board¶
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add (at least) a button and LED (with current-limiting resistor)
-
check the design rules, make it, and test that it can communicate
-
extra credit: simulate its operation**
This week I needed more time, and did not complete this assignment, as the lab is closed during the weekend. Unfortunately, during the weekend I had a health scare though was generally recovered on Monday.
Completed¶
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redrew an echo hello-world board and added a button and LED
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ran a script to check it
Here are the resources I used to draw the trace and interior of the board.
The following are the steps I took to redraw an echo hello-world board.
- additionally, I became comfortable with using the Roland SRM-20 solo, and recorded how to make a board.
The board I cut was the attiny45.
Seen here.
Here are the steps used to cut the board in mods:
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Create tool paths
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Open server program
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SRM-20 PCR png
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Delete socket
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Module
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File save
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Save local program (not working)
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Traces png
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Zero out to 2
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Set to .006
Challenges:¶
- Laying the PVC board flat, as it was not milling easily.
Fix
Recalibrate and reset the orgin point to 0.
Next Steps¶
Thankfully, I can dedicated more time to Fab Academy this coming week. Here are my remaining items left to complete.
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mill the board I designed
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solder components and test that is can communicate
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update website with notes before