Wall-E Solar Panel Display

Standalone Chillibasket-sized Wall-E Solar Panel Display using NodeMCU 1.0 and 1.69" Color TFT Display 240x280.

Features still to be added:

• Modified body_front panel to mount the display properly

Features

• Startup animation
• Battery level indication
• Low Battery warning animation

List of components

• NodeMCU 1.0
• 1.69" Color TFT Display 240X280 SPI ST7789 (link)
• 1 x 47kΩ resistor
• 1 x 51kΩ resistor
• 1 x 100kΩ resistor

Schematic

NodeMCU -> Display

• GND > GND
• 3V3 > VCC
• D5 > SCL
• D7 > SDA
• D0 > RES
• D1 > DC
• D2 > CS
• 3V3 > BLK (this powers the backlight on this particular display unit, I might add brighness level later)

Animations

Startup

The Solar Panel starts up like it does in the movie when it charges. The battery level bars come on from 0% to 100% in different speeds based on the actual beeps in the movie.

Battery level

The Solar Panel shows the battery percentage (set for 3S lipo between 10.8V (safe minimum voltage) to 12.6V (fully charged). Every bar represents 10 percent of the charge.

Low battery warning

The Solar Panel shows the "WARNING" text in the red lower bar while it's blinking. The blinking speed is based on the actual speed in the movie.