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Description
Interface Description:
- Onboard mature and stable ESP-12F WIFI module, large capacity 4M BYTE FLASH;
- Onboard I2C communication interface 0.96 inch OLED display;
- Onboard PCF8563T clock circuit, it can run normally even if the power is off;
- The ESP8266 UART interface is reserved to support the second time and write your own firmware;
- Power supply: MICRO USB 5V power supply;
- Double-layer structure design, small size and good appearance, the best choice for DIY WIFI clock
- ① 0.96 inch OLED display: the driver IC is SSD1306;
- ② ESP12FWF module: FLASH capacity is 4 MBYTE;
- ③ MICRO USB5V power supply interface;
- ④ PCF8563T clock chip;
- ⑤ CR1220 button battery; supply power to clock circuit after power off
- ⑤ UART program download interface: IO0 and GND are shorted when downloading, 3V3, TXD, RXD, GND are respectively
- Connect to 3V3, RXD, TXD, GND of external TTL serial port module (such as FT232 module), download
