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width = 3 ft, height = 3 ft

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width="2460mm" height="1320mm"

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STM32F103 Black Pill

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Component Order in Soldering 1) right angle header 2) 3-pin headers 3) 17-pin headers (fixture required) Pinouts The on-board LED is connected to PB12. Pull it LOW to turn on . It can be programmed either through the 4-pin header or through UART1. To program through UART1, set the jumpers to SERIAL PROGRAMMING before power up. Normally the jumpers should be set in NORMAL MAIN FLASH. Schematic
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Blue Pill Adapter Board

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  Soldering Sequence 1. Resistor 100 ohm (R10, R11) 2. Hearder 4-pin right angle (UART1) 3. LED red x 8 pieces (D0 - D7) 4. LED green (B6) 5. Capacitor (C1, C2) 6. Socket 20-pin x 2 pieces (BD1) 7. Socket 4-pin x 2 pieces (J2, J8) 8. Header 4-pin straight (UART3) 9. Tactile switch (A12) 10. Socket, 4-pin x 2pc (J5, J6), 7-pin (J7)
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serial bootloader and stm32flash

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  stm32flash is a flash program for STM32 MCU to upload program using the built-in serial bootloader over UART. The jumper should be set at boot mode when the stm32flash. stm32flash -b 115200 -w file.hex -v -g 0x0 COM6 Change COM6 to whatever port you are using. "-g 0x0" means run program after flashing. Omit it when your program is driving the right wheel because UART 1 share pin with TIMER 1. Remember to detach the USB2TTL as well. Make sure "file.hex" is generated by checking the appropriate box in "Options for Target": You can run stm32flash in keil uvision by setting the external tools: "#h" is the substitution of hex file name. Remind you once again. Use the 3.3 volts line on the USB2TTL. Never connect the 5 volts line to the robot car. stm32flash use SPACE as delimiter. Therefore your project name and folder name shall not contains SPACE. Chinese characters shall be avoided.
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