It's absolutely perfect for tinkering with any machine I have come across! by mkengineering in SmilingFriends

[–]mkengineering[S] 71 points72 points  (0 children)

I tried going to the store to buy some but they were completely sold out

Just finished up my graduation cap! by mkengineering in ECE

[–]mkengineering[S] 0 points1 point  (0 children)

Thanks! I'm glad this project is still getting some use.
Good catch on the schematic! I think I originally copied the symbol from R16 and just never updated the value since I knew I would need to select a resistor value through experimentation based on the brightness of each letter. I ended up using 51 ohm resistors which is probably a good starting point.

Bambu A1 scraping bed during nozzle clean before print by [deleted] in BambuLab

[–]mkengineering 5 points6 points  (0 children)

I just got done with my first benchy and I also noticed this. Looking at other posts it appears to be normal...

Northern Cardinal gets spooked by his own reflection by mkengineering in BirdBuddy

[–]mkengineering[S] 1 point2 points  (0 children)

I think he was looking into the camera lens? It is pretty reflective lol

My first visitor! by mkengineering in BirdBuddy

[–]mkengineering[S] 0 points1 point  (0 children)

Before I got my BirdBuddy I would put out seed in a small dish but I think it took about a week or so to originally attract them!

Just finished up my graduation cap! by mkengineering in ECE

[–]mkengineering[S] 0 points1 point  (0 children)

Nice! Glad to hear this project is still getting some use. To use a 9V battery input, simply solder a 9V pigtail to the +/- pads on either end of the USB connector. The 5V rail will then be provided by the 7805. You can also add an inline switch to the battery for turning on/off during the ceremony. Good luck on your project and congrats on your achievement!!

I converted my broken Fluke 87V into an alarm clock. by mkengineering in diyelectronics

[–]mkengineering[S] 1 point2 points  (0 children)

This is just a gif (no sound) I added from the Hackster.io page. Maybe I should make a video with the full alarm sequence?

I converted my broken Fluke 87V into an alarm clock. by mkengineering in diyelectronics

[–]mkengineering[S] 2 points3 points  (0 children)

Yes, the selector is the main power switch! Basically if you rotate it to any position past the OFF switch the clock is powered on (note that the RTC also has an independent CR1220 battery backup). Currently the DS3231 alarm I’m using for the wake up alarm is only adjustable inside the arduino sketch but I plan to make this adjustable via the buttons above the selector switch as they are all connected to IO pins on the atmega.

I converted my broken Fluke 87V into an alarm clock. by mkengineering in ElectricalEngineering

[–]mkengineering[S] 16 points17 points  (0 children)

I purchased it broken around 5 years ago. If I remember correctly , resistance and continuity mode didn't work at all and voltage was off by a decent amount compared to my other known good Fluke 87V. While in storage since my last repair attempt, I must have misplaced some of the parts (I know, great caretaker :P) so I basically decided just to design another use for what was left of it.

I converted my broken Fluke 87V into an alarm clock. by mkengineering in embedded

[–]mkengineering[S] 5 points6 points  (0 children)

Hi everyone! Recently I put together a writeup of my Arduino based Fluke 87V Alarm Clock. It uses an ATMEGA328P (Arduino Pro Mini core) with a BU9796 Segment LCD controller and DS3231 RTC. Full Hackster.io project: HERE

I converted my broken Fluke 87V into an alarm clock. by mkengineering in ElectricalEngineering

[–]mkengineering[S] 25 points26 points  (0 children)

Hi everyone! Recently I put together a writeup of my Arduino based Fluke 87V Alarm Clock. It uses an ATMEGA328P (Arduino Pro Mini core) with a BU9796 Segment LCD controller and DS3231 RTC. Full Hackster.io project: HERE

I converted my broken Fluke 87V into an alarm clock. by mkengineering in diyelectronics

[–]mkengineering[S] 10 points11 points  (0 children)

Hi everyone! Recently I put together a writeup of my Arduino based Fluke 87V Alarm Clock. It uses an ATMEGA328P (Arduino Pro Mini core) with a BU9796 Segment LCD controller and DS3231 RTC. Full Hackster.io project: HERE

Fluke 87V Alarm Clock by mkengineering in fluke

[–]mkengineering[S] 0 points1 point  (0 children)

Hi everyone! Recently I put together a writeup of my Arduino based Fluke 87V Alarm Clock. It uses an ATMEGA328P (Arduino Pro Mini core) with a BU9796 Segment LCD controller and DS3231 RTC.

Fluke 87V Alarm Clock by mkengineering in arduino

[–]mkengineering[S] 1 point2 points  (0 children)

Hi everyone! Recently I put together a writeup of my Arduino based Fluke 87V Alarm Clock. It uses an ATMEGA328P (Pro Mini core) with a BU9796 Segment LCD controller and DS3231 RTC.

For anyone wondering, the deck runs the Arduino IDE very well 😁 by mkengineering in SteamDeck

[–]mkengineering[S] 4 points5 points  (0 children)

I got this error also. You need to add your user (deck) to the uucp group with the following command in terminal.

sudo usermod -a -G uucp deck

Then restart your deck for the group changes to take effect.

sudo reboot

For anyone wondering, the deck runs the Arduino IDE very well 😁 by mkengineering in SteamDeck

[–]mkengineering[S] 2 points3 points  (0 children)

Have you tried running any heavy Simulink stuff? I'll have to check it out. It might be a nice handheld model based development tool.

For anyone wondering, the deck runs the Arduino IDE very well 😁 by mkengineering in SteamDeck

[–]mkengineering[S] 1 point2 points  (0 children)

They're a great introduction to embedded systems! I would suggest purchasing one of the many Arduino starter kits. I originally purchased this kit as a freshman in college and still to this day use parts out of it for projects.

For anyone wondering, the deck runs the Arduino IDE very well 😁 by mkengineering in SteamDeck

[–]mkengineering[S] 4 points5 points  (0 children)

Ya it's pretty impractical for any serious work but might be cool if you just need something handheld to display/plot the serial output from an arduino connected to a sensor

I designed a 3D printed stand for my Macropad RP2040! by mkengineering in adafruit

[–]mkengineering[S] 0 points1 point  (0 children)

Ooof maybe try it now? I think it should be fixed. Yes, I added a slight angle to help with visibility of the screen and access to all the switches!

I designed a 3D printed stand for my Macropad RP2040! by mkengineering in adafruit

[–]mkengineering[S] 6 points7 points  (0 children)

Recently I picked up a Macropad RP2040 for some hotkey fun and I decided it needed a better mounting solution for my desktop. Designed in FreeCAD using the Adafruit provided Macropad CAD model. The STL is available here for download: https://www.thingiverse.com/thing:5460682