[Physical object verified] [Training Camp_Basic Class] Core board based on STM32F103RCT6

The smallest core board based on STM32F103RCT6, 64-pin chip, 256Kb storage, powerful enough for daily use. This core board can drive OLED, and the function needs to be improved:)

Precautions:

1. The Typec port is only used for power supply and has no anti-backflow function. It is recommended to use ordinary USB power supply and do not use the computer USB port for power supply;

2. The 8 LED lights on the right side of the circuit board are running water lamps imitating the 51 microcontroller. They need to be plugged in with Dupont wires. I feel that it was quite simple to use 51 as a running water lamp in the past. I did not expect that STM32 can be used to make an 8-LED running water lamp. The code is extremely complicated~skip it~

3. The project download mode is SWD mode, and the port has been marked. Generally, ST-LINK V2 can be used; the 3.3V line can be connected or not:) Currently, bin file downloading is not supported because there is no serial port input. Later, I’ll add more when I get a chance~

4. The OLED display support mode is a 4-pin interface, upper left, lower left, upper right, lower right, corresponding to four wiring methods (see silk screen). You can use it by plugging it in directly (the source code in the attachment is because I bought the OLED wiring There is a problem with the order. When plugged in directly, the display will be upside down, so I modified the two wire sequences of SWDIO and SWCLK. For actual operation, please refer to the OLD wire sequence you bought);

5. Some STM32 main control chips have two dots. I didn’t pay attention to it the first time when welding. I found out that there were two dots after all the welding was completed. The point is that I made a mistake; I had no choice but to dismantle and re-solder. , with two dots, use the small dot as pin 1 of the chip. Everyone needs to pay attention!

6. BOOT0 and BOOT1 can be downloaded normally without shorting caps when using SWD download mode, and the ports are reserved for future expansion;

7. All the IO ports of this core board have been led out, and other module functions will be developed later. After all, it is just a core board, not a development board:)

If there are any errors, please correct them! Thanks!