ESP32 1.28-inch Round LCD Display Development Board

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The ESP32 1.28-inch Round LCD Display Development Board is a compact and powerful development board that offers a versatile platform for your projects. With its advanced technology and compatibility with various development environments, this board is suitable for a wide range of applications. It also has a sleek and modern design, making it a stylish addition to any project.

The development board uses a 1.28-inch circular TFT screen, GC9AO1 driver chip, 240*240 resolution, and 65K color display for clearer display. The screen uses an SPI interface to connect to the onboard ESP32. Driver examples are provided to make use easier.
The development board provides a USB port for one-click downloading of programs or serial communication. Of course, the USB port can also be used for power supply. It also has a battery interface and charging circuit on the board.
If a 3.7V lithium battery is connected, you only need to use the USB port. Charging. Regarding the battery power, the battery is connected to port 10 of the ESP32 through two voltage dividing resistors. The battery voltage can be judged by collecting the divided voltage through the ADC. In order to reduce the default power consumption, short the jumper pad and turn it on. Function.
In addition, there are three side buttons and TF card interface on the board, which can be directly inserted into the TF card for use. One of the buttons is the power switch button, and the other two are user-defined buttons that can be used with corresponding codes according to their own needs. If you If you think the size of the button is inconvenient to install into your own casing, you can also solder wires on the pads on both sides of the button to connect to external buttons for use.

Specification of ESP32 1.28-inch Round LCD Display Development Board:

  • Board type: ESP32 1.28-inch Round LCD Display Development Board
  • Input voltage: USB-5V / 3.7V-BAT (the battery only supports calibrated 3.7V lithium batteries)
  • Working current: related to code operation, generally no more than 100ma
  • Microcontroller: ESP32 (dual-core 32-bit processor)
    • Operating frequency: 240MHZ

    • Number of cores: 2

    • Flash size:16Mbyte

    • Psram: 8Mbyte (the current version of ESP32 only supports the use of 4Mbyte space)

    • Antenna: Yes

  • LCD screen size: 1.28 inches
  • Screen type: TFT IPS
  • Resolution: 240x240 pixels
  • On-board Wi-Fi and Bluetooth connectivity
  • Easy to program and suitable for IoT projects
  • Compact and lightweight design.
  • Wireless: Bluetooth + wifi 2.4G
  • Peripheral: TF card holder x1
  • User-defined buttons: x2
  • TFT driver chip: GC9A01
  • Power collection interface
  • Fixing method: M2 copper pillar
  • Size:
    • 41mm (H) x37mm (W) - without card

    • 41mm (H) x44mm (W) - plug-in card

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