Eigenschaften
- 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire
- supported(except D0)
- 1 analog input(3.2V max input)
- a Micro USB connection (CH340G serial)
- 4M flash
Pinout
| Pin | Funktion | ESP-8266 | Verwendung | reset state |
| TX | TXD | TXD | usb-to-serial | tx |
| RX | RXD | RXD | usb-to-serial | rx |
| A0 | analog in | A0 | voltage devider | |
| D0 | IO | GPIO16 | ||
| D1 | IO, SCL | GPIO5 | ||
| D2 | IO, SDA | GPIO4 | ||
| D3 | IO | GPIO0 | 10k pull-up | high |
| D4 | IO | GPIO2 | 10k pull-up, led | high |
| D5 | IO, SCK | GPIO14 | ||
| D6 | IO, MISO | GPIO12 | ||
| D7 | IO, MOSI | GPIO13 | ||
| D8 | IO, SS | GPIO15 | 10k pull-down | low |
| G | Ground | GND | ||
| 5V | 5V | (regulator => 3.3V) | ||
| 3V3 | 3.3V | VCC | ||
| RST | Reset | RST | 10k pull-up, 100n, button | |
| EN | 10k pull-up | high |