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USART1 debugging
-USART2 DMX512
+USART2 DMX512 data
+TIM3 DMX512 timing
Blue Pill pinout
| PA6 PA15 |
| PA7 PA12 |
| PB0 PA11 |
- | PB1 PA10 | RXD1 - debugging console
-TXD3 - DMX TX (5V OC) | PB10 PA9 | TXD1 - debugging console
+DMX TX enable | PB1 PA10 | RXD1 - debugging console
+TXD3 - DMX TX | PB10 PA9 | TXD1 - debugging console
RXD3 - DMX RX (5V) | PB11 PA8 |
| RESET PB15 |
| 3.3 V PB14 |