Monday, June 8, 2020

Reference: "Blue Pill" STM32F103
  • Warning: This board may have a wrong value of resistor on the USB D+ pin. Instead of a 1.5kΩ it has either a 10kΩ or 4.7kΩ resistor. This can be solved by replacing the resistor with the right value.
  • R10 should be a 1.5kΩ.

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