HiLetgo STM32F103C8T6 ARM STM32 Minimum System Development Board Module STM32F103C8T6 Core Learning Board for Arduino

I'm really liking these STM32 chips. This module works as described and I'm using it to prototype a bigger project. I was a die-hard Z8Encore developer for nearly 15 years, but now that I've made the switch...goodbye Zilog :D

Board worked for a short moment then shorted out on me. I am giving a positive review because seller had reached out to me to correct the issue. I have already purchased a second board that works flawlessly.

Works as advertised. I am using vscoce, platformio (Arduino framework), and STLINK V2. Dropping for star for presenting as a STM32F103C8T6, in reality it's a different chip, a clone.

It looks real STM32F chip, but something wrong when check the jtag chains: Device "STM32F103C8" selected. Connecting to target via SWD Found SW-DP with ID 0x1BA01477 Found SW-DP with ID 0x1BA01477 Scanning AP map to find all available APs AP[0]: Stopped AP scan as end of AP map has been reached Iterating through AP map to find AHB-AP to use Found SW-DP with ID 0x1BA01477 Found SW-DP with ID 0x1BA01477 Scanning AP map to find all available APs AP[1]: Stopped AP scan as end of AP map has been reached AP[0]: AHB-AP (IDR: 0x14770011) Iterating through AP map to find AHB-AP to use AP[0]: Core found AP[0]: AHB-AP ROM base: 0xE00FF000 CPUID register: 0xC11FC231. Implementer code: 0xC1 (???) Found Cortex-M3 r1p1, Little endian. FPUnit: 0 code (BP) slots and 0 literal slots CoreSight components: ROMTbl[0] @ E00FF000 ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 001BB000 SCS ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 001BB002 DWT ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 00000000 SCS ROMTbl[0][3]: E0000000, CID: 00000000, PID: 001BB001 ??? ROMTbl[0][4]: E0040000, CID: B105900D, PID: 001BB923 TPIU-Lite ****** Error: Could not find core in Coresight setup ##### good STM32 chip for reference ##### Connecting to target via SWD Found SW-DP with ID 0x1BA01477 SWD speed too high. Reduced from 4000 kHz to 2700 kHz for stability STM32 (connect): Can not attach to CPU. Trying connect under reset. Found SW-DP with ID 0x2BA01477 SWD speed too high. Reduced from 2400 kHz to 1620 kHz for stability Found SW-DP with ID 0x2BA01477 Scanning AP map to find all available APs AP[1]: Stopped AP scan as end of AP map has been reached AP[0]: AHB-AP (IDR: 0x14770011) Iterating through AP map to find AHB-AP to use AP[0]: Core found AP[0]: AHB-AP ROM base: 0xE00FF000 CPUID register: 0xA12FC231. Implementer code: 0xA1 (???) Found Cortex-M3 r2p1, Little endian. FPUnit: 6 code (BP) slots and 2 literal slots CoreSight components: ROMTbl[0] @ E00FF000 ROMTbl[0][0]: E000E000, CID: 00B105E0, PID: 000BB000 ??? ROMTbl[0][1]: E0001000, CID: 01B105E0, PID: 003BB002 ??? ROMTbl[0][2]: E0000000, CID: B105E00D, PID: 003BB001 ITM ROMTbl[0][3]: E0040000, CID: B105900D, PID: 003BB923 TPIU-Lite ROMTbl[0][4]: E0040000, CID: 00000000, PID: 003BB923 ??? ROMTbl[0][5]: E0041000, CID: B105900D, PID: 0D003B24 ??? Cortex-M3 identified.

I'm attempting to build a quadcopter from scratch, including the flight controller. I will be using code developed by someone else & enhancing it to meet my needs. I originally thought using an Arduino UNO would be the right hardware, but it turns out to be too slow. I discovered this board while watching some videos & it was easy to see it would be a better choice: 32 bit & a 72 mhz clock speed. There are enough 5 volt tolerant pins to use this board with a 3 cell LiPo battery & the appropriate voltage regulator. Sometimes referred to as the 'Blue Pill', there is significant discussion about it on the Internet. There is a development Add-In for the Arduino IDE, so you can work in a familiar environment. There is also another Open Source IDE, which will allow you to work @ a lower level, which, of course can provide a faster solution. Bottom Line....I hope to use this board for other projects.

Two problems with the board I received: LED at pin PC13 was dead and the ST Link interface did not work. Programming the board using an FTDI connection worked fine. My ST Link hardware worked fine on another similar board from a different vendor.

This is a very easy Arduino upgrade. I will be using this in a LiDAR project where I was running up against the real-time processing limits of a traditional Arduino. These are very easy to use in the Arduino IDE: 1. Add the STM32Duino board manager to Arduino 2. install "STM32F1xx boards by stm32duino" 3. install "Arduino SAM Boards (32 bit ARM Cortex M3)" if it isn't already. THIS WAS THE STEP THAT TRIPPED ME UP. Older version of the Arduino IDE included this by default but some of them (including the version from the Windows 10 app store) do not include. 4. switch program jumper on the STM32F1 to "1" 5. wire programmer 6. hit reset button 7. click upload Obviously once you've 'graduated' from the Arduino IDE or need additional performance, code for the STM32F can be compiled directly.

It's such an awesome product in a small useful package. I am using a Mac, and I flashed it using an FTDI Serial to USB adaptor in conjunction with the Arduino IDE. If you follow the guides online, it works great, and a lot of the Arduino libraries work out of the box.