2.9inch E-paper Module Four-color Electronic Paper Display SPI E-Paper Screen with Ultra-Low Power & Wide Viewing Angle for Arduino

2.9inch E-paper Module （英文版） [Product Introduction] The 2.9inch E-paper Module integrates four-color e-paper display, fast refresh response, and multi-interface connectivity, providing an easy-to-integrate display solution for electronic price tags, IoT information terminals, and embedded development projects. It supports 3-wire/4-wire SPI switching and is compatible with various main controller development requirements. [Product Features] 1. Four-color information display: 2.9-inch, 128(H) × 296(V) pixel display, supporting black, white, yellow, and red images, making it convenient to distinguish different types of display information. 2. Clear ambient-light reading: Reflective, backlight-free e-paper features high contrast and a wide viewing angle, suitable for viewing content under ambient light. 3. Fast content updates: At 25°C, the panel fast refresh time is approximately 11 seconds, suitable for periodically updating status and information. 4. Low-power content retention: The module supports sleep mode; the bistable display of e-paper can reduce power consumption while maintaining static content. 5. Multiple connection methods: The module provides flexible main controller connection options, suitable for the wiring requirements of different embedded projects. 6. Onboard signal adaptation: An integrated level-shifting buffer provides adaptation for signal connections between the module and the main controller. 7. Flexible SPI configuration: Supports 3-wire/4-wire SPI switching, allowing the connection method to be selected according to the main controller communication requirements. 8. Onboard level-shifting chip, compatible with 3.3V and 5V microcontroller interfaces. [Application Scenarios] 1. Electronic price tags and shelf information boards: Used to display low-frequency update content such as prices, product information, inventory status, or asset identification. 2. IoT device information terminals: Works with Arduino, ESP32, ESP32-S3, or Raspberry Pi to display sensor data and device operating status. 3. Embedded development learning: Used for learning and prototype verification of e-paper driving, SPI communication, and display programs. [Specifications] • Compatible main controllers: Arduino, ESP32/ESP32-S3, Raspberry Pi • Communication method: 3-wire/4-wire SPI • Panel fast refresh time: Approximately 11 seconds (25°C) • Sleep mode: Supported • Screen size: 2.9 inches • Display resolution: 128(H) × 296(V) pixels • Display colors: Black, white, yellow, red • Panel display characteristics: Reflective, high contrast, wide viewing angle, bistable, no backlight required • Driver chip: JD79661 • Product dimensions: 9.05cm*3.8cm • Product weight: 0.061kg (including packaging) • Package dimensions: 13*8*2.5cm [Learning Resources] Online tutorials are provided, including comprehensive guidance on programming implementation and image processing. [Package Contents] 2.9inch E-paper Module ×1 MX1.25 8PIN connection cable x1 Screwdriver ×1 Screw kit set ×1 8PIN pin header ×1