2HoursProject/SSD1306_sketch
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# SSD1306 OLED Servo Control with STM32 Blue Pill
This project demonstrates how to control a servo motor using an IBT_2 (BTS7960) motor driver, an STM32 Blue Pill, and a 128x64 SSD1306 OLED display. The user can control the motor's speed and direction using four push buttons, with real-time feedback on the OLED screen.
This project demonstrates how to control a servo motor using an IBT_2 (BTS7960) motor driver, an STM32 Blue Pill, and a 128x64 SSD1306 OLED display. The user can control the motor's speed and direction using four push buttons, with real-time feedback on the OLED screen. It shows how to use the DAPLink programmer in Arduino IDE v2 with debugging.
## Features
@@ -14,7 +14,6 @@ This project demonstrates how to control a servo motor using an IBT_2 (BTS7960)
* STM32F103C8T6 "Blue Pill" development board
* 128x64 SSD1306 OLED display (I2C) with 4 push buttons (up, down, OK, Back)
* IBT_2 (dual BTS7960) motor driver
*
* Servo motor e.g.: RS-550 or R-775
* External power supply for the motor 12-24V/5A
* Breadboard and jumper wires
@@ -157,7 +156,7 @@ Here is an example command to upload the sketch using DAPLink:
This section describes how to enable **hardware debugging** for the STM32F103 "Blue Pill" board using a **DAPLink / CMSIS-DAP** debugger in **Arduino IDE 2**.
By default, the STM32 Arduino core loads the wrong OpenOCD configuration (`dapdirect_swd`, meant for ST-Link).
Until the (bug)[https://github.com/stm32duino/Arduino_Core_STM32/issues/2807] is not fixed, follow these steps to fix it:
Until the [issues/2807](https://github.com/stm32duino/Arduino_Core_STM32/issues/2807) is not fixed, follow these steps to work around it:
### 🧭 1. Locate STM32 Core Folder (Linux)
@@ -168,7 +167,7 @@ cd ~/.arduino15/packages/STMicroelectronics/hardware/stm32/2.11.0/
```
Adjust the version number if different (check in Arduino IDE → Tools → Board → Boards Manager).
🧰 2. Create or Edit platform.local.txt
🧰 2. Create or Edit `platform.local.txt`
Create (or edit) a local override file:
@@ -187,19 +186,20 @@ Save and close (Ctrl + O, Enter, Ctrl + X).
These lines tell OpenOCD to:
Use the CMSIS-DAP interface (interface/cmsis-dap.cfg)
- Use the CMSIS-DAP interface `interface/cmsis-dap.cfg`
Use standard SWD transport (select_swd.cfg) instead of dapdirect_swd
- Use standard SWD transport `select_swd.cfg` instead of `dapdirect_swd`
🔁 3. Restart Arduino IDE
Completely close and reopen Arduino IDE 2 to apply the new settings.
⚙️ 4. Configure the IDE
In Arduino IDE → Tools, set:
Debug symbols and core logs → Core Logs and Symbols Enabled (-g)
- Debug symbols and core logs → Core Logs and Symbols Enabled (-g)
Optimize → Debug (-Og)
- Optimize → Debug (-Og)
Then click the 🐞 Debug icon and press Start Debugging.