What is it?

D-duino means "Display Duino" D-duino-V6 = ESP8266 + TFT screen It is a esp8266 development board.

Why did you make it?

I start D-duino project since 2015. You can check my blog (https://dstike.com/blogs/news/about-those-copycat-products-of-mine) to see the past versions I made. All the past versions revolved around 0.96 OLED and 1.3 OLED. It is time to make D-duino support color TFT screen.

GPIOs and hardware info:

• Display: ST7789 1.3" Screen

• Display SDA(MOSI): GPIO 4

• Display SCL/SCK: GPIO 5

• Display DC: GPIO 0

• Display RST: GPIO2

• Display Background LED : GPIO16 (Low will close BackGround)

• Resolution: 240*240

• WS2812b LED: GPIO 15

• Button Up: GPIO 12

• Button Down: GPIO 13

• Button Select: GPIO 14

All ESP8266 pins break out.

What makes it special?

• ~120mA power usage

• LM39100 Low Voltage Low-Dropout Regulator

• All GPIO breakouts and 3.3 and 5V output

• 2 LEDs to indicate battery charging status (Red:Charging,Green:Full)

• Protection: short, over charging, over discharging, temperature, reverse