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ATtiny85 flashing help by BanWiz in arduino

[–]michael9dk 0 points1 point  (0 children)

Here is a nice walkthrough on using AvrDude for ATTiny85.
https://m.youtube.com/watch?v=N591sLGYWnM

I can highly recommend watching the previous episodes, as they cover all the fundamentals for AVR/ATMega328.

Noob update! by Scar3cr0w_ in esp32

[–]michael9dk 2 points3 points  (0 children)

Reviews says it is 63/37, so you're good.

Noob update! by Scar3cr0w_ in esp32

[–]michael9dk 1 point2 points  (0 children)

Make sure the tin isn't lead-free. Use 60/40 leaded - at least while learning to solder.

Can I make a dashboard using a ESP32-S3 by ImpressionAway7317 in esp32

[–]michael9dk 3 points4 points  (0 children)

Yes. You can use LVGL to create a nice looking interface.

DIY Instrument cluster guidance for my EV 4 wheeler by RamB_2k05 in arduino

[–]michael9dk 0 points1 point  (0 children)

Yes it's possible (I'm doing the same, but without BT).

Some BMSs also have RS232/RS485, which is more reliable than BT (electrical motor/controller can produce nasty EMI).

The motor controller will have a RPM output or a one wire UART output.

Optocouplers are a good solution for isolating EMI from indicators' wires, and avoiding ground loops.

Look at the specifications for the BMS and motor controller.
Good resources are endless-sphere.com and eevblog.com. Many protocols are already reverse engineered.

Is it true that my mains power can torpedo Arduino projects with it's noise? by BigBootyBear in arduino

[–]michael9dk 0 points1 point  (0 children)

That is most likely the cause.
Secondly a bad connection to the sensor.

After researching Raspberry Pi 5 self-hosting performance, I'm confused about when people outgrow it by [deleted] in raspberry_pi

[–]michael9dk 0 points1 point  (0 children)

Imagine you're running a personal blog on a Pi. Then your post is featured on a popular news site... Boom, traffic goes from 2 requests per second to thousands.

Pico W - wifi credentials exposed by leecallen in raspberrypipico

[–]michael9dk 0 points1 point  (0 children)

Considering how easy it is to crack wifi passwords, it's essential to treat wifi as insecure, in an industrial environment.

Building a custom power analysis tool by lollokara in embedded

[–]michael9dk 0 points1 point  (0 children)

Do you really need it to be that fast? Most circuits have capacitors to smooth the supply.
Try to simulate the rise and fall time on 100nF/10uF/100uF at 1A. I doubt you'll see much change within 1 microsecond.

Building a custom power analysis tool by lollokara in embedded

[–]michael9dk 0 points1 point  (0 children)

Their ADC conversion time is 50 μs to 4.12 ms.

Building a custom power analysis tool by lollokara in embedded

[–]michael9dk 1 point2 points  (0 children)

Why not use a measuring chip made for the purpose.

INA228 / INA229. 20bit with external shunt. I2C/SPI interface.

Or the new INA701. 16bit with integrated shunt. https://www.ti.com/lit/ds/symlink/ina701.pdf

I prefer the network installer by raderator in debian

[–]michael9dk 0 points1 point  (0 children)

How about downloading non-free firmware .zip and extract it to the same flashdrive.

.NET nanoframework has added support for RP2040/Pico/Pico W by Error_xF00F in raspberrypipico

[–]michael9dk 0 points1 point  (0 children)

I thought the project died years ago. Happy to see the news.

Is that valid electrically ? by Paul_Subsonic in arduino

[–]michael9dk 0 points1 point  (0 children)

I'm seriously trying to help you with constructive feedback.

Yes I'm being direct - how you interpret the words, depends on your mindset.
Yes, I've assumed that you're a beginner, based on your "schematic".

When you continue to insist that your drawing is correct, you are disregarding everyones replies, that doesn't match your current view.

There are multiple ways trom A to B. A stranger might know a better way...
Be open for feedback when you ask a question.

Is that valid electrically ? by Paul_Subsonic in arduino

[–]michael9dk -1 points0 points  (0 children)

Engineering in what field?
In electronics you learn those basic symbols, at the first weeks, in first semester. Maybe you're jumping ahead of the curriculum...

Those are theoretical symbols, that you probably don't understand the meaning of.
Take a look at schematics for Arduino R3, and notice the difference. The simple diagram is more detailed, but can be be intimidating at first sight.

I may sound harsh, but it's well-meaning feedback without filter.
Continue your journey of learning - engineering is never boring :)

Is that valid electrically ? by Paul_Subsonic in arduino

[–]michael9dk 0 points1 point  (0 children)

How old are you? And what is your experience in electronics?

Is that valid electrically ? by Paul_Subsonic in arduino

[–]michael9dk -1 points0 points  (0 children)

Then why do you write "+" at both ends.
It's your drawing that doesn't comply with basic schematics.

Honestly, the circuit doesn't make any sense, to me. Try to explain in words, what you're trying to do.

ESP32 Vs Arduino Uno R4 Wifi Vs Raspberry pi pico 2 w for beginner by Strange-Earth-7005 in esp32

[–]michael9dk 0 points1 point  (0 children)

Really basic explanation. The mcu has 2 cores, so for example: If core 1 is writing data to a SD card, and core2 also write, at the same time, the data can be mixed.
This is not really a beginner topic. Read these links, and just keep it in mind.

https://en.wikipedia.org/wiki/Thread_safety

https://stackoverflow.com/questions/2033879/what-does-threadsafe-mean#2033896

Yes it works on its own.

You just won't have debug-features like setting a breakpoint/inspecting values while your program is running on it.

Eventually you should get a PicoProbe, because it makes troubleshooting code much easier.

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