The development board adopts a 1.28-inch circular TFT screen, GC9AO1 driver chip, 240 * 240 resolution, 65K color display is clearer, and the screen is connected to the onboard ESP32 using SPI 0, providing driver examples to make use of it easier.
The development board provides a USB port for one click program download or serial communication, and of course, the USB port can also be used for power supply. The board also carries a battery interface and charging circuit. If a 3.7V lithium battery is connected, only the USB port is needed for charging. For the battery's power, the battery is connected to the IO port of ESP32 through two voltage divider resistors. The ADC can collect the voltage after voltage divider to determine the battery voltage. To reduce default power consumption, short circuit the jumper pad and enable the function.
In addition, there are three side pressed buttons on the board that can be directly inserted into the storage card interface for use. One of the buttons is the power switch button, and the other two are user-defined buttons that can be coded according to your own needs.

Product type: ESP32-TFT development board series
Input voltage: USB-5V/3.7V-BAT (battery only supports calibration of 3.7V lithium batteries)
Working current: It is related to the operation of the code and generally does not exceed 100ma

Operating frequency: 240MHz
Number of cores: 2
FIash size: 16Mbyte
Psram: 8Mbyte (the current version of ESP32 only supports the use of 4Mbyte space)
Antenna: Yes
Wireless: Bluetooth+WiFi 2.4G
Screen type: TFT IPS
Peripheral: TF card holder x1
User defined button x2
1.28-inch GC9A01 driver chip TFT screen x1
Electricity collection interface x1
Fixation method: M2 copper column
Size reference: 41mm (H) x 37mm (W)