STM32 MCUs Products

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Resolved! STM32F407 VREF+ voltage not 3.3V

Hi, I have a custom board in which VREF+ is supposed to be 3.3V. But the actual VREF+ (pin32) is 2.xV, with drifts between power ups. VDDA (pin 33) is 3.3V.What's wrong with the circuit schematic? Can I just remove the resistor (R22) between VREF+ an...

stm32_vref.jpg
fzl by Associate II
  • 689 Views
  • 5 replies
  • 1 kudos

Resolved! Blackpill and LIS3DH - issue with Sleep Mode.

When I use sleep mode while debug it sleep mode Works. But when I try runing code without using debug method it dosnot go in Sleep mode. When I chack current.When using debug method stape by stape.  Without using stape by stape debug method.Hear is t...

WhatsApp Image 2024-03-08 at 15.59.59_4747fd50.jpg WhatsApp Image 2024-03-08 at 15.59.59_c9f9cb4e.jpg

Resolved! BlackPill RobotDyn how to program it ??

Hi, I'm trying to figure out how to program this MPU with the Arduino IDE.I tried to make the serial port appear but without any success.Unfortunately I have lost all reference to the purchase and it seems that RobotDyn no longer exists.I tried the f...

Suntchi by Associate III
  • 7633 Views
  • 25 replies
  • 1 kudos

Resolved! Black pill serial communication not working!

Hey guys!I'm trying to run the eaxmple found in this link: https://deepbluembedded.com/stm32-serial-port-uart-with-usb-ttl-converter-pc-interfacing/I'm able to read the data from MCU serially, but when I write, the GPIO is not getting toggled. I've c...

zeus by Associate II
  • 4000 Views
  • 22 replies
  • 1 kudos

Resolved! Newbie Blue Pill Blink CubeIDE

Hi,Pretty new to STM32 but reasonably comfortable with ESP32, Pico and 40 years of C++. So old enough to expect it to be me.Cannot get blink to work with blue pill 32k using cube ide on ubuntu 23.04 with   while (1) { /* USER CODE END WHILE *...

bibble235 by Associate III
  • 5314 Views
  • 11 replies
  • 1 kudos