NerdMiner V2 ESP32 2.8 Inch ST7789 Touch Screen Development Board, Bitcoin Lottery Mining Display, 240×320 TFT Screen, WiFi USB Powered Crypto Desk Gadget

Features

• 2.8-Inch ST7789 Touch Display: Integrated 240 x 320 TFT LCD with XPT2046 resistive touch. For custom firmware, initialize the screen with the ST7789 driver, BGR color order, inversion disabled, and TFT_RST set to -1.
• ESP32 Wireless Development Platform: Built around the ESP32-WROOM-32E dual-core module with 2.4 GHz Wi-Fi, Bluetooth and BLE. Suitable for Arduino IDE, PlatformIO, ESP-IDF and MicroPython projects, including IoT dashboards and control panels.
• Onboard Interfaces and GPIO: LCD uses SCK 14, MISO 12, MOSI 13, DC 2, CS 15 and BL 21. Touch uses IRQ 36, MISO 39, MOSI 32, CS 33 and SCK 25. MicroSD uses 23, 19, 18 and 5; RGB uses 17, 22 and 16; battery ADC is 34.
• Preinstalled NerdMiner V2 Demo: The board arrives with NerdMiner V2 firmware installed so the display and Wi-Fi functions can be tested after setup. It is supplied mainly as a programmable development board, and custom firmware will replace the demo.
• Complete Development Package: Includes one ESP32-2432S0248R-PLUS 2.8-inch touch screen development board, one USB Type-C data cable and one PP storage box. MicroSD card, battery, stylus, sensors and expansion modules are not included.
• TF and MicroSD Storage Expansion: The onboard card slot uses MOSI GPIO23, MISO GPIO19, SCK GPIO18 and CS GPIO5, allowing compatible custom firmware to store images, configuration files, sensor logs, interface resources and other project data.
• XPT2046 Resistive Touch Control: The integrated touch panel can be operated with a finger or compatible stylus and is suitable for menus, buttons and control interfaces. Touch calibration may be required after changing screen rotation or graphics libraries.
• Designed for Multiple DIY Applications: Ideal for IoT dashboards, smart home controllers, weather displays, sensor monitors, clocks, wireless terminals, touch menus, electronics education and other custom ESP32 projects.
• Additional Onboard Resources: Includes an RGB indicator on GPIO17, GPIO22 and GPIO16, battery voltage detection on GPIO34, reserved audio control on GPIO26 and GPIO4, and an expansion SPI chip-select connection on GPIO27.
• Developer-Friendly Pin Definition: Clearly assigned display, touch, MicroSD and expansion GPIO connections simplify firmware configuration. All ESP32 GPIO signals use 3.3V logic, while GPIO34, GPIO36 and GPIO39 are input-only pins.

Description

ESP32 2.8-INCH ST7789 TOUCH SCREEN DEVELOPMENT BOARD The ESP32-2432S0248R-PLUS is a programmable touch screen development board built around the ESP32-WROOM-32E wireless module. It combines a 2.8-inch TFT color display, resistive touch control, 2.4 GHz Wi-Fi, Bluetooth, a TF or MicroSD card slot, RGB indicator, USB Type-C interface, and multiple expansion resources in one compact hardware platform. This board is primarily designed for embedded development, IoT dashboards, smart home control panels, sensor monitoring displays, wireless information terminals, graphical menus, electronics education, and custom DIY projects. PREINSTALLED NERDMINER V2 FIRMWARE NerdMiner V2 firmware is preinstalled on the development board as a demonstration application. Customers can power on the board, connect it to a 2.4 GHz Wi-Fi network, and explore the screen, wireless connection, and Bitcoin information display functions without first compiling a program. The preinstalled NerdMiner V2 firmware can be erased or replaced with compatible custom firmware at any time. Uploading another program will overwrite the preinstalled NerdMiner V2 firmware. This product is primarily sold as a programmable ESP32 development board. NerdMiner V2 is provided as an additional educational and demonstration application. It is not intended to replace professional ASIC mining equipment or provide predictable mining income. 2.8-INCH ST7789 TFT DISPLAY The board features a 2.8-inch TFT color screen with a resolution of 240 x 320 pixels. The display uses the ST7789 controller and is suitable for graphical interfaces, sensor information, Wi-Fi status, clocks, monitoring dashboards, menus, control panels, and other embedded applications. RECOMMENDED DISPLAY INITIALIZATION Use the following settings when developing software for the display: - Display controller: ST7789 - Display resolution: 240 x 320 pixels - Color order: BGR - Display inversion: Disabled - LCD reset: Connected to ESP32 EN - Recommended software reset definition: TFT_RST = -1 This display must be initialized using BGR color order with display inversion disabled. Using RGB color order or enabling display inversion may cause incorrect colors, such as green appearing blue, abnormal color tones, or an inverted display effect. XPT2046 RESISTIVE TOUCH SCREEN The integrated touch screen uses an XPT2046 resistive touch controller. Resistive touch operation is suitable for use with a finger, touch stylus, or another non-sharp object. Touch calibration may be required after changing screen rotation, graphics libraries, display orientation, or firmware. Touch functions depend on the installed program and may not be enabled by every firmware version. ESP32-WROOM-32E DEVELOPMENT PLATFORM The board is powered by the ESP32-WROOM-32E module and provides a dual-core 32-bit processor with an operating frequency of up to 240 MHz. Wireless functions include: - 2.4 GHz Wi-Fi 802.11 b/g/n - Bluetooth v4.2 BR/EDR - Bluetooth Low Energy - On-board PCB antenna These features make the board suitable for wireless control panels, IoT devices, smart home systems, Bluetooth interfaces, remote sensor displays, network-connected terminals, and electronics development. PROGRAMMING AND USB TYPE-C INTERFACE The USB Type-C interface can be used for board power, firmware uploading, and serial debugging. A USB Type-C data cable is included in the package. The board can be used with common ESP32 development environments, including: - Arduino IDE - PlatformIO - ESP-IDF - MicroPython Basic programming, wiring, and electronics knowledge may be required when installing custom firmware or connecting external modules. ON- BOARD HARDWARE RESOURCES The development board integrates the following hardware resources: - ESP32-WROOM-32E wireless module - 2.8-inch 240 x 320 ST7789 TFT display - XPT2046 resistive touch controller - USB Type-C power and programming interface - TF or MicroSD card slot - On-board RGB indicator - Battery voltage ADC input - Reserved audio interface - Reserved SPI expansion interface - Reset and boot buttons - 2.4 GHz Wi-Fi - Bluetooth and BLE ST7789 LCD GPIO DEFINITION - LCD SCK: GPIO14 - LCD MISO: GPIO12 - LCD MOSI: GPIO13 - LCD RS or DC: GPIO2 - LCD CS: GPIO15 - LCD backlight: GPIO21 - LCD reset: Connected to ESP32 EN - Recommended reset definition: TFT_RST = -1 The ST7789 display normally does not require display readback for standard graphics operation. GPIO12 is available as the LCD MISO connection according to the board definition. XPT2046 TOUCH GPIO DEFINITION - Touch IRQ: GPIO36 - Touch DOUT or MISO: GPIO39 - Touch DIN or MOSI: GPIO32 - Touch CS: GPIO33 - Touch SCK: GPIO25 GPIO36 and GPIO39 are input-only pins and cannot be configured as standard GPIO outputs. TF OR MICROSD CARD GPIO DEFINITION - SD MOSI: GPIO23 - SD MISO: GPIO19 - SD SCK: GPIO18 - SD CS: GPIO5 A TF or MicroSD memory card is not included. Memory card functions require compatible firmware and a properly formatted memory card. ON-BOARD RGB LED GPIO DEFINITION - RGB red channel: GPIO17 - RGB green channel: GPIO22 - RGB blue channel: GPIO16 The RGB indicator can be controlled through custom firmware for status indication, Wi- Fi connection status, notifications, or other development functions. BATTERY, AUDIO, AND EXPANSION GPIO DEFINITION - Battery voltage ADC: GPIO34 - Reserved audio input: GPIO26 - Reserved audio enable: GPIO4 - Reserved expansion SPI CS: GPIO27 GPIO34 is an input-only ADC pin and cannot be used as a standard digital output. The audio and expansion interfaces are reserved hardware resources. Their operation depends on the external circuit, connected modules, and user firmware. TECHNICAL SPECIFICATIONS - Product model: ESP32-2432S0248R-PLUS - Main module: ESP32-WROOM-32E - Processor: Xtensa dual- core 32-bit LX6 - Maximum processor frequency: Up to 240 MHz - Display size: 2.8 inches - Display resolution: 240 x 320 pixels - Display controller: ST7789 - Display initialization: BGR color order - Display inversion: Disabled - Touch type: Resistive touch - Touch controller: XPT2046 - Wi-Fi: 2.4 GHz 802.11 b/g/n - Bluetooth: Bluetooth v4.2 and Bluetooth Low Energy - Storage expansion: TF or MicroSD card slot - USB interface: USB Type-C - USB power input: 5V - GPIO logic level: 3.3V DEVELOPMENT NOTES All ESP32 GPIO signals use 3.3V logic. Do not connect a 5V signal directly to an ESP32 GPIO pin. GPIO34, GPIO36, and GPIO39 are input-only pins and cannot be used as standard output pins. The screen should be configured using the ST7789 driver, 240 x 320 resolution, BGR color order, and display inversion disabled. Incorrect display driver settings may result in abnormal colors, reversed color channels, image offset, incorrect orientation, or display inversion. Touch calibration values may vary depending on screen rotation, display orientation, graphics library, and firmware. Some on-board functions, including touch control, TF card access, Bluetooth, RGB indicator, audio interface, battery ADC, and expansion GPIO, may not be enabled by the preinstalled NerdMiner V2 firmware. These hardware resources can be accessed through compatible custom firmware. PACKAGE CONTENTS - 1 x ESP32-2432S0248R-PLUS 2.8-inch touch screen development board - 1 x USB Type-C data cable - 1 x PP storage box TF or MicroSD card, battery, touch stylus, external sensors, and expansion modules are not included. IMPORTANT CUSTOMER NOTICE This product is a programmable ESP32 development board intended for embedded development, firmware experimentation, IoT projects, electronics education, touch screen interfaces, and DIY applications. NerdMiner V2 firmware is preinstalled as an additional demonstration application. Customers may continue using the preinstalled firmware or replace it with their own compatible ESP32 program. NerdMiner V2 is a lottery-style educational application. The probability of independently finding a Bitcoin block is extremely low. No Bitcoin reward, mining income, profitability, or financial return is guaranteed.

Brand: Generic

Wattage: 1 watts

Fuel Type: Electricity

Power Source: USB Powered

Recommended Uses For Product: Residential

Output Wattage: 1

Special Feature: Comfort Grip

Color: Green

Product Dimensions: 3.86"L x 0.97"W x 2.3"H

Material: PETG

Wattage: 1 watts

Fuel Type: Electricity

Power Source: USB Powered

Recommended Uses For Product: Residential

Output Wattage: 1

Additional Features: Comfort Grip

Engine Type: Integrated Circuit

Ignition System Type: Electronic

Total Power Outlets: 1

Starting Wattage: 1 watts

Running Wattage: 1 watts

Runtime: 24 hours

Brand Name: Generic

Model Name: ZLX-ESP32-1

Model Number: ESP32-WROOM-32E

Unit Count: 1 Count

Manufacturer Part Number: ESP32-WROOM-32E-N4

Item Dimensions L x W x H: 3.86"L x 0.97"W x 2.3"H

Color: Green

Material Type: PETG