Update DIY: STM32F103C8T6 („BLUE PILL“) + ST Link V2

so,
got yesterday my STM32F103C8T6 (earlier post)->diy-stm32f103c8t6-blue-pill-oled-tft-display/
1,55€ (inkl.shipping)->Aliexpress -> Link
first->its smaller than i expected (see 2.picture) and its very “friggling”..

i thought, no problem, i use my Pi, wire it up like in some Youtube-Videos, use the Arduino IDE and begin to upload a sketch etc..
but:“Wasn´t” ; )..got always a “STM32flash -> “Device init failed“
(use btw. first my USB-serial adapter with RX,TX and ground->Arduino said:”Device not recognized”)..
googled through a thousand STM32-Arduino-forum/threads, millions of hours, and the final conclusion is:

Buy a ST-Link V2 !! -> 1,68€ Aliexpress -> Link

directly from the beginning (with a STM32F103C8T6)->strongly adviced/recommended from my side here too !! 😉
(hope this will do the trick !! (toi,toi,toi->german phrase)) 😉