The Developer Guy

18/12/2023

https://youtu.be/PlDgq2s5Odg
It got the greenlight!
The cheap hotplates can be dangerous, so I converted mine to a much more usable and safe one!

Use the code "PCBWay-TDG" for $10 off at PCBWay! https://www.pcbway.com/YOu can get a cheap hotplate, but it's not safe by default. Let's improve it!

13/12/2023

Finished some project, like this one:
https://www.youtube.com/shorts/RcWECvh-Mc8
If you want the files, just ping me!

04/12/2023

https://youtu.be/Xz6I7bQoTao
Blinking some LEDs after configuring GPIO pins? Just give yourself 6 minutes!

Patreon: https://patreon.com/thedeveloperguyKo-fi: https://ko-fi.com/thedeveloperguyNative development is getting easier, right? We already created a project...

26/11/2023

https://www.youtube.com/watch?v=aBkRLhizlfE
Finally: the SMT32 conversion therapy series just started!

Patreon: https://patreon.com/thedeveloperguyKo-fi: https://ko-fi.com/thedeveloperguyNative development can be hard and scary - but it's a walk in the park wi...

23/11/2023

Black Friday sale starts early: get 25% off from the Python quickstart course!
https://thedeveloperguy.com/courses/python/

22/11/2023

If you want to close this year with learning something new, I got the right thing for you:
the Python quickstart course!
https://thedeveloperguy.com/courses/python/
You can learn the basics of software development, not just coding in Python! Check out the details, if you want a real deal!

21/11/2023

OpenAI dead, FTX dead, but it's still november!
Can a Sam Friedman, Sam Goldman or Sam Goodman outCEO these CEOs and surprise everyone else with an even bigger mess?
Let the game begin!

19/11/2023

Happy birthday, Half-Life!
Get now, if you haven't: https://store.steampowered.com/app/70/HalfLife/

18/11/2023

Me while looking for LED drivers:

16/11/2023

After cleaning the PCBs:
https://www.youtube.com/shorts/cm5aC_7QaYk
Found 1 short and one capacitor broke!

15/11/2023

The STM32 Duinos turned out fine!
If you were interested in this project, this may be the best time to join the Maker Corner: https://discord.com/invite/GBbyPcUPuC (wink-wink)
And grab a coupon here: https://www.pcbway.com/member/getsharecoupon?id=36463&key=f60e48da-17ba-40ef-a951-2ac02f6e8b12

14/11/2023

Starting soon:
https://youtube.com/live/wPKII6gWvxw?feature=share
Assemble and test the SMT32Duino!

We are going to assemble at least one of the STM32C0 devboards!

13/11/2023

Yes, Stonks is getting a GUI update!
That means a Tkinter-Python tutorial is arriving soon.
You can check out the code at GitHub and start trading crypto without going bankrupt: https://github.com/the-developer-guy/stonks

07/11/2023

https://youtube.com/shorts/N1ZS_2ml7-Y?feature=share
Tested my new hotplate!

06/11/2023

Update:
Added some proper debug connectors, status LEDs and removed some unnecessary stuff. I'll finish a few other designs and will order some of these!

05/11/2023

Final hours: most parts are tested. Just added a cute debug header for ST-Link connection!
Any suggestions?

03/11/2023

Python guys may feel left out. But no worries, I love you too!

Released the video about virtual environments in Python:

During development, separating different packages is essential. Virtual Environments can prevent mixing your different projects and their packages!Stonks, th...

27/10/2023

Checked the charging currents on the charger: 470mA and 99mA instead of 500 and 100. A few % difference, but that's totally acceptable!

26/10/2023

Had some extra time, so went back and upgraded Stonks to make it somewhat playable, you can download it here: https://github.com/the-developer-guy/stonks

If yo haven't heard about the project: Stonks is a realtime trading game, a crypto exchange simulator, with real exchange rates! Whenever you buy or sell, it updates the current price. So you can be the wolf of FTX without losing a cent!

25/10/2023

And that's how you convert a potential lethal shock to a "decent" soldering hotplate. Video soon!

24/10/2023

Validated the next project: 3-channel li-ion charger!

https://youtu.be/9sn-Pe3wkH0

And soon you can order yours here: https://www.pcbway.com/project/shareproject/Triple_C_charger_5e74206f.html

If you ever need an open-source, single-cell battery charger, consider building this!You can get the files from here: https://www.pcbway.com/project/sharepro...

11/10/2023

Just some quick fun: reflow with charcoal!

09/10/2023

This episode was planned for September, but hey! It finally arrived!
Talk about overhead in software, and make some measurements.

Overhead: computation time, memory, bandwidth, or other resources spent on extra work, which is required to perform a specific task.Software developers intro...

27/09/2023

One of them runs Python, the other runs baremetal C.
Both microcontrollers run at 16 MHz.
Both microcontrollers are given a simple task: toggle a LED.
We will explore the topic "overhead" in a video soon!

26/09/2023

It's hard to break old habits!
Tools like Arduino provide easy entry to the embedded field, but can end up in addiction: they are too convenient! "HAL_GPIO_TogglePin(LD2_GPIO_Port,LD2_Pin)" is scary, right? And the new boards are incompatible with old shields and peripherals. Well, the latter problem will be soon solved after some initial testing!

The power of STM32 in the Uno form factor - how would You call it?

22/09/2023

https://youtube.com/shorts/0JNBeGbP8P4?feature=share
The bugfixed version arrived, now testing!

16/09/2023

Another tech video: some of the basic, but often “forgotten” stuff are the concepts. Many tutorials skip them!

Structured programming paradigm

In this series we learn about basic, yet often overlooked programming concepts.

11/09/2023

After closing Vault 1337, I had only a small space left for PCB related stuff.
But that doesn't stop me from making new projects!

04/09/2023

New video!
Everything you need to know about cables, wires and PCB traces:

Everything you need to know about different wires, cables and PCB traces!Courses: https://thedeveloperguy.com/Support on Patreon: https://patreon.com/thedeve...

25/08/2023

The timing topic got an update! Have a wonderfule weekend, the topic got me banned from a Facebook group :D

Because you guys asked for it!If you would like to know the ugly details, why overflow is a nasty topic, this video is for you!The original article: https://...

23/08/2023

🚨This is not a drill!🚨 Microsoft is about to support Python!

macros were truly a great idea back in 1993. The concept of including small scripts to automate boring, repetitive and/or error-prone is magnificent. You could press a button, a form pops up, fill some fields, and everything else is done by the computer, otherwise you would need to edit formulas, calculate, check again. Lovely.
I even made a VBA course, because VBA skills became a must-have for accountants. My students loved it because it gives a solution for their daily problems without the need of feeling like a software developer, coding in IDEs.

But years went on, and the experience stuck in the 90's. The editor is outdated both in looks and functionality, also lacks proper version control. It's not pleasant to code in this after VS Code or any modern editor to be honest! Even that little Excel logo stayed the 1999 version, indicating something: it's not going to improve.

And everything else was improving FAST. Python was only 4 years old, when Excel got its macros, but the tables have turned and you can easily edit an Excel file from Python. But many companies have fused with Excel. I offered a Python course (many years ago) to a regional director of a huge company. His answer was: "Our company will be buried with Excel, we are not able to switch."

Now it's the time to ask him again: would you like to improve the life and efficiency of your employees?

And I ask You too: would You like to step ahead of your competition and start using Python before them? Contact me for course details!

https://techcommunity.microsoft.com/t5/excel-blog/announcing-python-in-excel-combining-the-power-of-python-and-the/ba-p/3893439

20/08/2023

Just a quick post how to replace the delay() with something proper for scheduling your code!

The delay() function in Arduino is not just overused, but almost always used the wrong way. Let's see an example and how to schedule simple tasks the correct way! How delay() works? The delay() waits for some given time. It means it does NOT let other things run. Let's look at the Arduino Blink exam...

13/08/2023

Are bigger antennas better? It depends!

Some antennas may look better, but only the inside counts! Always choose your devices based on specs, and not the looks!

08/08/2023

Another linkedIn wisdom debunked!

07/08/2023

Why no video this week? Currently working on a much bigger one: conductors! Everything you should know about cables and PCB traces.

30/07/2023

Totally forgot about my GhettoCNC and drilling ceramic ICs for fun. (and not for profit, I don't have an etsy page)
https://youtube.com/shorts/cUc5V84mPb8

23/07/2023

A short computer history lesson about the save icon!
https://youtube.com/shorts/PxTcJGPJRFw?feature=share

19/07/2023

https://youtube.com/shorts/cwphTZ2jjEs?feature=share
For less, than 25 bucks, you can save a lot of things.
Some cheap semiconductors, true, but Your eyesight too!
What is considered essential for your home lab?

Your electronics home lab needs some essential tools! Not just a soldering iron, but basic protection!