Since it’s inception the Arduino IDE has demonstrated the desire to support all kind of platforms
BluePill (SMT32) programming with Arduino A USB to Serial Converter
New there and beginner questions - Arduino for STM32
This is a core chip based on for CS32F103C8T6 ARM core board, features are as follows: The board based on the most basic MCU circuit, 8M and 32768
AITRIP 5PCS STM32F103C8T6 ARM STM32 Minimum Development Board Module for Arduino DIY Kit CH32F103C8T6 for Arduino
Program the STM32F103C8T6 Blue Pill-LED Blinking
Setting up Arduino IDE for STM32 - Simuli
Programming the “Blue Pill” with Arduino IDE - Maker and IOT Ideas
Getting Started with STM32 Nucleo-64 (STM32F103) using Arduino IDE - Project Guidance - Arduino Forum
Stm32duino
Getting Started with STM32 Microcontroller-Blinking of LED
Getting Started with STM32F103C8T6 STM32 Development Board (Blue Pill) using Arduino IDE: Blinking LED