https://stone-hmi.com/mcu-controller/ 
Using APM32F103CBT6, 32-bit ARM Cortex-M3 core, Maximum operating frequency of 96MHz, Flash capacity of 128KB
        
    
 https://stone-hmi.com/mcu-controller/ 
Using APM32F103CBT6, 32-bit ARM Cortex-M3 core, Maximum operating frequency of 96MHz, Flash capacity of 128KB