ESP32-Wemos开发板
I2C displays on I2C1
| Signal | GPIO |
|---|---|
| SCL | GPIO4 |
| SDA | GPIO5 |
串口
| UART | Signal | GPIO |
|---|---|---|
| 0 | RX TX |
GPIO3 GPIO1 |
| 1 | RX TX |
GPIO12 GPIO13 |
| 2 | RX TX |
GPIO16 GPIO17 |
SPI
| SPI | Signal | GPIO |
|---|---|---|
| 2 | MISO MOSI CLK |
GPIO12 GPIO13 GPIO14 |
| 3 | MISO MOSI CLK |
GPIO19 GPIO23 GPIO18 |
I2C
| I2C | Signal | GPIO |
|---|---|---|
| 0 | SCL SDA |
GPIO21 GPIO22 |
| 1 | SCL SDA |
GPIO4 GPIO5 |
OLED
参数
- 128x64 SSD1306 I2C
- GPIO5: SDA
- GPIO4: SCL
SPI
- CLK -> GPIO5
- MOSI -> GPIO7
- RST -> GPIO0
- DC -> GPIO2
- CS -> GPIO8
SSD1306介绍
https://blog.csdn.net/weixin_44457994/article/details/121484335
