Description: The development board adopts a 1.28-inch circular TFT screen, GC9A01 driver chip, 240 * 240 resolution, and a clearer 65K color display. The screen is connected to the onboard ESP32 using an SP interface, providing driver examples to make usage easier. The development board provides a USB port for one click download of programs or serial communication. Of course, the USB port can also be used for power supply. The board also contains 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 port 0 of ESP32 through two voltage divider resistors. The voltage of the battery can be determined by collecting the voltage after voltage divider through ADC to reduce default power consumption, Enable the function after short circuiting the jumper pad. In addition, there are three side pressed buttons and TF card interfaces on the board that can be directly inserted into the TF card for use. One button is a power switch button, and the other two are user-defined buttons that can be coded according to your own needs for use. If you think the buttons are too small to fit into your own shell, you can also weld wires on the pads on both sides of the buttons to connect to external buttons for use. 2, Parameter Introduction Product type: ESP32-TFT development board series Input voltage: USB-5V/3 7V-BAT (battery only supports calibration 3. 7V lithium battery) Working current: It is related to the operation of the code and generally does not exceed 100ma ESP32 Minimum System Parameters 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-compatible+WiFi 2 4G Screen type: TFT IPS Peripheral: TF card holder x1 User defined keys x2 1.28-inch GC9A01 driver chip TFT screen x1 Electricity collection interface x1 Fixing method: M2 copper column Size reference: 41mm (H) x37mm (W) - without card insertion 41mm (H) x44mm (W) - card insertion Deviation in manual measurement 4, Function section description: The TYPE-CTYPE C interface can be used for power supply, battery charging, downloading programs, and serial communication. When using the TYPE-C port for power supply, please connect the USB3.0 port or mobile phone charging head to avoid restarting due to insufficient current. It is easy to restart when using some expansion dock for power supply and turning on functions such as wif and Bluetooth-compatible that consume too much current. The charging chip adopts a maximum current of 500ma. Considering that some users with smaller volumes will use small capacity batteries when connecting to the battery and the product itself has a high heat generation capacity, the default maximum charging current is limited to around 300ma. If you need a higher current, you can achieve it by replacing the resistor. In most cases, we do not recommend increasing the charging current, which will cause the product to generate more heat. Please refer to the table below for details.
Price: 5.54 USD
Location: ShenZhen
End Time: 2024-08-05T07:33:54.000Z
Shipping Cost: 2.99 USD
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Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Brand: Unbranded
MPN: Does not apply
Available Variations
Color: Bare Screen
Price: 5.54 USD
Available Quantity: 10
Quantity Sold: 0
Color: 2G TF Card
Price: 11.16 USD
Available Quantity: 13
Quantity Sold: 3
Color: no 2G TF Card
Price: 10.28 USD
Available Quantity: 11
Quantity Sold: 1