Mastodawn

laskakit.bsky.social 3h ago

Skvělá zpráva pro naše nové i stávající zákazníky. Pojďme si udělat léto ještě hezčí 🥰 #bastlimslaskou #arduino #esp32 #raspberrypi #diy #makeit #laskakit #postovne #zdarma #sleva #vyhodne #bastleni #pajeni #programovani

Update on the bed thermostat:

It mostly works really well, but today I've redesigned the sensor housing and placement so it can be away from wild swings in temperature (It could probably use a fabric sleeve to protect the wires.)

I might also need to finally learn how to print TPU, so I can extend the airflow further into the bed.

Most of the project is here: https://github.com/b73tt/bedcooler

#projects #3dprinting #arduino #homeautomation

Kemal ASLAN 14h ago

20x4 Karakter LCD Ekranın üstündeki iki sütunda takvim, saat ve termometre olacaktı.

Aslında başarmıştım, ama o zamanlar Arduino Uno yada Nano'nun hafıza kapasitesini biraz fazla abartmıştım.

Son sütuna bir menü koyup, oradan ekran gösterim seçeneği eklemeyi umuyordum!

Elbette olmadı

Hattâ tarih ile ilgili de bir sorunla karşılaşmış ve o zaman onu da çözemeden modülü yakmıştım! ツ

Sonra o modülü tekrar aldım ve tekrar yaktım!

#RDA5807M #Arduino #radio #electronic #FMRadio #coding #RSSI #SNR

Kemal ASLAN 14h ago

SNR (Signal to Noise Ratio / Sinyal-Gürültü Oranı) bilgisi tasarımım da böyleydi.

Gürültüyü sınırlı alanda piksellerle böyle simgeleştirmiştim. ツ

Daha sonra RSSI'yı ikinci sıranın başına alıp ardına STEREO / mono yazısını eklemeyi daha güzel bulmuştum.

Son hâli öyleydi ve ekrana sâdece "0" yazdığı ve çalışmasını sağlayamadığım için SNR bilgisini iptal etmek zorunda kaldım!

..devamı yanıtta....

#RDA5807M #Arduino #radio #electronic #FMRadio #coding #RSSI #SNR

diyelectromusic 23h ago

I've started messing around with this now. Details here:
https://diyelectromusic.com/2025/07/05/arduino-and-ay-3-8910/

#Arduino #AY38910

Arduino and AY-3-8910

I’ve had some AY-3-8910 programmable sound generators for a while and planned to do something with them, but they’ve sat in the “to think about” box for a while. But recentl…

Simple DIY Electronic Music Projects

diyelectromusic 23h ago

Arduino Nano and AY-3-8910

https://makertube.net/w/26yAj7wAzZwCsFoBkJpZs2

Arduino Nano and AY-3-8910

PeerTube

diyelectromusic 1d ago

Anyone else think there ought to be more 40-pin DIP packages in electronics these days?

#AY38910 #arduino

Kemal ASLAN 1d ago

Radyonun ekranına RSSI (Received Signal Strength Indicator / Alınan sinyal gücü göstergesi), SNR (Signal to Noise Ratio / Sinyal-Gürültü Oranı) bilgisi ve SES seviyesi için Hoparlör simgeleri tasarlarken çok daha fazla keyif almıştım.

Çünkü iki yıllık da olsa modern sanat eğitimi almıştım! ツ

SNR bilgisi ekrana sâdece "0" bilgisi yazdırıp doğru çalışmadığı için onu koddan çıkarmak zorunda kaldım ve çalıştırmak için bir daha da uğraşamadım!

#RDA5807M #Arduino #radio #electronic #FMRadio #coding

Kemal ASLAN 1d ago

Sonunda sâdece "ekrana STEREO bilgisini yaz" demenin yeterli olduğunu öğrenince çok şaşırmıştım! ツ

/*Anlık STEREO-mono bilgisini ekrana yaz*/
if (millis()- STEREO > 400)
{STEREO = millis(); lcd.setCursor(4,3); lcd.print(info.stereo ? "STEREO" : "mono " );}

Kodu ilk yazdığımda millis falan ekli değildi. Onu daha sonra kodu geliştirmek için eklemiştim.

#RDA5807M #Arduino #radio #electronic #FMRadio #coding

Kemal ASLAN 1d ago

Örneğin ekrana yayının "STEREO" mu yoksa "mono" mu olduğunu nasıl yazdıracağımı bir türlü bulamıyordum!

Çok fazla örnek yoktu ve bunu yapanlar başka radyo modülü ve farklı kodlar kullandıkları için işime yaramıyordu

Üstelik ben kod yazmayı yeni öğrenmeye çalışıyordum!

Radyonun sesini sağ (R) ve sol (L) iki ayrı kanaldan Arduino'ya geri girip, aralarında fark varsa STEREO, yoksa mono yazsam olur mu diye bile düşündüm! ツ

.. devamı yanıtta

#RDA5807M #Arduino #radio #electronic #FMRadio #coding

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gloriouscow Jun 21

Let's make sure we absolutely have the right pin.

A good sanity check is that VSS connects to at thick ground copper, and M/IO connects to a via, that we can trace out going to the correct header pin.

gloriouscow Jun 21

*sweating*

gloriouscow Jun 21

OK, without any clock source this thing should barely draw any power.

Half a watt seems about right. Much more reassuring than the 286 was!

gloriouscow Jun 21

This is a 3V capable CPU though, so we'll run the board at 3V. It draws 0.1 W at 3.3V which is even better.

Still wondering what happened to my 80C286. Wish I had a system I could throw it in to see if it was actually dead or if I'm just a bonehead.

gloriouscow Jun 21

here's what i have to patch over to the Arduino

50% chance i have one or both of the address headers backwards lol

gloriouscow Jun 21

This should be it! It's the same gpio pinout as the 286 basically. The 386EX actually only has two more address lines. I guess 64MB of RAM is plenty for embedded applications...

gloriouscow Jun 21

Lucky that this header just happens to have CLK on it.

gloriouscow Jun 21

Conspicuously absent on the 386 is an ALE pin. I guess timings are now tight enough that you only concern yourself with the address when a read or write signal is asserted.

gloriouscow Jun 21

No bus status, no ALE pin... I guess I know the CPU has reset if it just reads something.

gloriouscow Jun 22

And I thought the 286 took a long time to reset.

450 cycles!

gloriouscow Jun 22

So far no response from the 386EX.

Time to do a sanity check to determine whether the RESET and CLK signals are really reaching the CPU.

gloriouscow Jun 22

The header provides a tie to /RST, that is an inverted RESET signal. This is one of the signals that passes through the inverter IC, a 74HC14D. I should check that the inverter is still receiving power after my board surgery, and that a positive RESET signal is coming out the other end of it.

gloriouscow Jun 22

Well, this is unfortunate. The holes in the board i assumed were for mounting posts actually seem to be connected to each plane and by putting screws in I have shorted the board.

gloriouscow Jun 22

The EX datasheet doesn't mention the particulars, but the SX datasheet has this to say:

I'm not sure how this board ties the busy pin. If it isn't low we're gonna be waiting a million cycles for it to reset.

gloriouscow Jun 22

BUSY is multiplexed with TMRGATE2 on Pin 92. It looks like this runs through a resistor network with a pulldown to ground (figures) but does go to a header pin curiously claled TMRCLK2. Typo perhaps? I hope so.

@gloriouscow Maybe they replaced it with a BEER pin?

(I show myself out)

@gloriouscow
BODGE BODGE BODGE BODGE

gloriouscow Jun 21

@ozzelot I wish I had yellow wire so I could pretend I was IBM

@gloriouscow
(I bought a PS2 today and if it ends up even working, I may modchip it for literally no reason other than practice and "what's it gonna do, it's a cheap PS2")

gloriouscow Jun 21

@ozzelot *being too retro to know if you're talking about an IBM PS/2 or a playstation 2*

@gloriouscow
If I was talking about a PS/2, I would type PS/2

gloriouscow Jun 21

@ozzelot I remember one of the early xbox mod chips had a tiny ass little wire like this you had to solder. and of course once I installed mine all my friends wanted me to do theirs.