How to use I2C Communication in STM32 Microcontroller

Overview of I2C Communication in STM32 Microcontrollers:
Comparing I2C (Inter Integrated Circuits) in STM32F103C8 Blue Pill board with Arduino Uno, then we will see that Arduino has ATMEGA328 microcontroller in it, and STM32F103C8 has ARM Cortex- M3 in it. STM32 has Two I2C bus while Arduino Uno only has one I2C bus and STM32 is faster than Arduino.

[artuesquivel]

Is it possible to do it the other way around? I am trying to have an Arduino UNO as the master, and the STM32F1 as slave, but when I compile the sketch for the SMT32 I receive an error saying "'class TwoWire' has no member named 'onReceive'". This doesn't happen when the Arduino is the slave. Thanks!

[kebabsharif]

CAN you make a video on how to upload blue pill (stm32f103c8) with USB as you showed in the video with com port

[sumitjadhav]

one question i see u have used SoftWire.h with wire.h cant we use the inbuilt Hardware i2c lib
also how to use i2c 2 which is on PIN (B11 & B10)
this method is only valid for using I2C 1
do you know how to use i2c 2 using TwoWire method

[Loopyengineeringco]

That's great, thank you for the demonstration 👍

[ijash-yt]

hi, i'm trying to communicate arduino(slave) and blue pill(master) with i2c using wire library on both devices. on slave reset, blue pill master seems hang. but not if i use arduino as master. anyone know why?

[maulanawahyudi]

how to choose the pin from some of the i2c pins? does it work for all I2C pins? . And do we need to avoid other I2C pins for other purposes?