STM32 MCUs Products

How to connect 3 HC-05 devices using STM32 and CubeIDE?

Hi,i am using STM32F407 and CubeIDE. I am trying to use 1 master and 2 slave at the same time. I can connect any slave to the master. I am trying to implement a sinmple alghoritm for 2 slaves. I change device address which master is connected at 10 s...

STM32L4 entering and exiting Sleep mode

I can’t understand how to enter and exit sleep mode. Can someone share an example of how to enter and exit sleep mode on the L4 series? I use ADC + DMA + TIM and I want to go to sleep mode, and after the interruption comes from DMA, I want the microc...

How to download STM32F4O1RE Library (.lib,.hex,.c files ) for proteus as well as for keil uvision.

UART RXNE interrupt not asserted in certain situations

I am currently running into a problem using an STM32F446 microncontrollers UART interface that i cannot explain and require help.The system we are looking at is meant to do measurements.Each measurement cycle is triggered by an external Host.The Host...

Using a timer to trigger DMA to read ADC.

Hello,I'm using the STM32F779.I have a timer configured to to trigger an ADC (single channel) using the timers TRGO.This is working great but I'd like to have a DMA handle the transfer.The timer triggers every 2ms and I'm running the timer for severa...

Hex to Char without change!

Hi every body!How Can I convert byteArray[] (in hex format) to data[] (in char format):uint8_t byteArray[] = { 0x4D, 0x04, 0x01, 0x18, 0x05, 0x05, 0x0C, 0x0E, 0x0C, 0x05, 0x0F };char data[] = "4D04011805050C0E0C050F";Thank you!

QSPI - How to exit memory mapped mode

How to exit memory mapped mode in STM32H7I tryied: https://community.st.com/s/question/0D50X00009XkaJuSAJ/stm32f7-qspi-exit-memory-mapped-mode?t=1574431671411Code with HAL_QSPI_Abort() is working in STM32F7, but in STM32H7 return error

I'm using the STM32F0 discovery board and trying to interface it with a Tianma TFT display. I need help to find a library file for display driver IC ST7789vi, using 3-wire SPI interface (MOSI, SCK & CS).

I'm working on a project using STM32F0 discovery board and we bought a TFT LCD from a local distributor, part number TM028HDHG59. The datasheet they sent mentioned it has the driver IC ST7789vi and it has RGB/3-wire SPI interface. Since I'm new to ST...

I'm monitorating heart rate by the MAX30100(https://img.filipeflop.com/files/download/Datasheet_MAX30100.pdf) using the MCU STM32F4. I'm trying read the IR and RED data from the FIFO, but all returns are **ZERO**.

I'm monitorating heart rate by the MAX30100(https://img.filipeflop.com/files/download/Datasheet_MAX30100.pdf) using the MCU STM32F4. I'm trying read the IR and RED data from the FIFO, but all returns are **ZERO**. The method `MAX30100_Get_Num_Samples...