Overview

• ESP32 C3 desktop trinket Mini TV Portable Pendant LVGL 1.44inch LCD ST7735
• Part Number： ESP32C3-1.44
• Brand： Spotpear
• SKU： 0601026

Features

• Power supply: 5V
• Display driver interface: SPI
• Screen driver IC: ST7735S
• Screen resolution: 128×128
• Compatible battery type: 3.7V lithium battery with 1.27mm plug
• Main control: ESP32 C3 with WiFi and Bluetooth capability.

Links

• orginal document
• schematic diagram
• original code repo

Dev Environment

• Build the dev environment instructions
• Third party library file configuration:
  • Enter the mainapp project, change to your own WIFI name and password within
  • Adjust dev environment configuration parameters
  • After the modifications are completed, you can configure parameter compilation

Replacing Middle Rotation Symbols

• Crop corresponding GIF pixels
  • Online website： https://ezgif.com/resize
  • Crop to 30 * 31 pixels
  • Convert GIF files to. c files
  • Online Image Converter Website： https://lvgl.io/tools/imageconverter
  • Enter the website to configure the corresponding settings
  • Copy the obtained xm.c file to the miniapp folder
  • Change the TKR_A in the miniapp. ino code to xm (change to your own name), there are two TKR_A instances in the project
  • Click to upload