test-neopixel-square/README

   1 Assignment of peripherals and pins
   2 ==================================
   3
   4 USART1  debugging
   5 TIM4    Neopixel control
   6
   7
   8                            Blue Pill pinout
   9                         +--------------------+
  10                         | VBATT         3.3V |
  11 BluePill LED            | PC13           GND |  Neopixel ground
  12                         | PC14            5V |  Neopixel power
  13                         | PC15           PB9 |
  14                         | PA0            PB8 |  TIM4_CH3 - Neopixel data (pull up to +5V)
  15                         | PA1            PB7 |
  16                         | PA2            PB6 |
  17                         | PA3            PB5 |
  18                         | PA4            PB4 |
  19                         | PA5            PB3 |
  20                         | PA6           PA15 |
  21                         | PA7           PA12 |
  22                         | PB0           PA11 |
  23                         | PB1           PA10 |  RXD1 - debugging console
  24                         | PB10           PA9 |  TXD1 - debugging console
  25                         | PB11           PA8 |
  26                         | RESET         PB15 |
  27                         | 3.3 V         PB14 |
  28                         | GND           PB13 |
  29                         | GND           PB12 |
  30                         +--------------------+