Arduino for STM32

Hi,

Formally, the difference is clear enough. Well, off the record: are those 3.3V pins equally intolerant of any use with 5V in the circuit? I suspect, for instance, that the usual LED + resistor arrangement won't kill the 3.3V pin even if the pull-up is connected th 5V. Is it really so?

One day it just started to work. Probably, unreliable contact with SCL or SDA line at the backpack. At least, all the other suspects, including USB cables, turned out to be innocent. Among other things, changed three LCD displays, It's possible that a modicum of friction made the metal inside the ho...

Hi, I'm regularly breaking my HID bootloader. The typical workflow looks like this: 1. Uploading a buggy sketch, unsuccessfully. 2. The bootloader becomes generally unresponsive. 3. Trying to flash it back with stlink. It reports success, but it isn't true. Then I move BOOT0 to 1, erase the memory w...

1. They are synonyms now. The preferred word is extension . 2. Ctrl+Shift+P. It's Settings . You need Preferences: Open Settings (UI) , then Extensions . Still, I can't find the Disable/Enable control for each extension. 3. The answer is resounding Yes! 4. ... ? Now to my particular problem (Vim-sty...

Hi, I'm interested in Vim plugin . Or is it an extension? I tried Google Search; unfortunately, it's dead sure that I'm interested in Arduino plugin for VScode. I can't convince it that I'm interested in Arduino IDE plugin system. Meanwhile 1. I can't find whether the plugin and the extension are di...

Exactly. Thanks! It's kinda easy to mix them up...

Hi,

I had to redefine LED_BUILTIN for my Blue Pill sketch:

#undef LED_BUILTIN
#define LED_BUILTIN PC13

Is it merely a bug, or some obscure configuration lost? Tools settings of Arduino IDE 2.2.1 for the Blinky certainly got lost; I restored them manually. Or I think I did

The voltage on 5V/VCC checked: 5V indeed.

As a matter of fact, I did. No difference. Used my multi-meter later to discover that built-in pull-up resistors measure at 4.5k.

Hi, I can't make the simple "Hello, World" show on 16x2 LCD monitor. First, what seems to be OK: The HD44780 + PCF8574, factory soldered. It works normally with ESP32 processor dangling on the USB cable plugged into the same laptop's USB port. The internal PCF8574 pull-up resistors measure...