Overview

Inkplate 4TEMPERA is a compact, all-in-one 3.8-inch touchscreen e-paper device for low-power, always-on display applications. It's built around an ESP32 microcontroller with Wi-Fi and Bluetooth connectivity, a built-in Li-Ion battery, frontlighting, and a set of onboard sensors, all inside a 3D-printed case. Each device reuses an ED038TH2 E Ink panel that would otherwise have ended up as e-waste, so you get a sustainable e-paper board whether you're prototyping or building something to last.

Inkplate 4TEMPERA

Which product is this documentation for?

Inkplate 4TEMPERA with glass panel

333308

Inkplate 4TEMPERA without glass panel

333307

Key features

• Display Size: 3.8" touchscreen e-paper (grayscale with partial update support)
• Resolution: 600 × 600 pixels
• Touch Input: Capacitive touch support
• Microcontroller: ESP32 (Wi-Fi + Bluetooth 4.0 BLE)
• Power Supply: USB or 1200mAh Li-Ion battery with on-board charging
• Power Consumption: 18 µA in deep sleep mode
• Programming Support: Arduino (Adafruit GFX compatible)
• Storage: microSD card slot for external image and data access
• Sensors:
  • BME680 (temperature, humidity, air quality)
  • APDS-9960 (gesture and proximity)
  • Accelerometer + gyroscope
• Audio: Built-in buzzer (frequency adjustable)
• Expansion: GPIO pins via GPIO expander and EasyC ecosystem
• Enclosure: 3D-printed case included
• Sustainability: Reused ED038TH2 E Ink display
• Dimensions (both versions): 90 × 83 × 24 mm
• Variants:
  • With or without protective glass panel