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E-Paper Weather Station with OpenWeatherMap

A battery-powered e-paper weather display using LILYGO T5 4.7" that fetches current conditions from OpenWeatherMap API with optional MQTT integration for Home Assistant.

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Boards:ESP32ESP32-S3

Firmware:ArduinoPlatformIOMQTTHome Assistant

Use Cases:Environmental MonitoringDisplay & DashboardE-Paper & Signage

GitHub

Overview

This project creates a standalone weather station using the LILYGO T5 4.7-inch e-paper display. The firmware fetches real-time weather data from the OpenWeatherMap API and renders current conditions, temperature, humidity, and forecasts on the e-ink screen. The low-power display retains the weather information between updates, making it ideal for battery-powered operation.

Optional MQTT/Mosquitto integration allows the weather station to also pull data from Home Assistant, combining cloud weather data with local sensor readings. The project uses the LilyGo-EPD47 and ArduinoJson libraries, and requires only WiFi credentials, an OpenWeatherMap API key, and your location coordinates to get started.

Resources

GitHub Repository

Source code & project files

Devices Used in This Project

LILYGO T5 E-Paper S3 Pro Lite

Dev Board

A pocket-sized ESP32-S3 development board with a 4.7-inch capacitive touchscreen e-paper display (960×540, 16 grayscale), anti-glare glass, warm-toned backlight, MagSafe wireless charging, and comprehensive battery management.

Xtensa LX7 dual-core @ 240MHz, FPU, AI vector extensions, HW crypto (AES/SHA/RSA)512KB SRAM16MBWiFi 802.11 b/g/nBLE BLE 5.0

E Reader Smart Home Dashboard Weather Display Digital Signage Digital Photo Frame

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Compatible Devices

LILYGO T-Lite W5500

ESP32

Ultra-compact ESP32 development board with W5500 SPI Ethernet, 0.96" OLED display, Wi-Fi, Bluetooth 4.2, and USB-C. Only 29.5×23mm for embedded IoT gateway projects.

ESP32520KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 4.2Ethernet 10/100 Mbps W5500

Iot Gateway Network Automation Home Automation Embedded Networking

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LILYGO T-Micro32 Plus

ESP32

LILYGO T-Micro32 Plus is an upgraded compact ESP32 module with 8MB flash, 2MB PSRAM, expanded GPIO, and an improved RED C3 ceramic antenna for stronger wireless performance.

ESP32520KB SRAM8MBWiFi 802.11 b/g/nBLE BLE 4.2

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LILYGO T-Display S3 AMOLED 1.64

ESP32 S3

ESP32-S3 development board with a 1.64" ICNA3311 AMOLED display at 280×456 resolution, 16MB Flash, 8MB PSRAM, Wi-Fi and Bluetooth 5 LE connectivity.

ESP32-S3R816MBWiFi 802.11 b/g/n 2.4 GHzBLE BLE 5.0

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LILYGO T-Display S3 AMOLED Plus

ESP32 S3

Enhanced ESP32-S3 AMOLED development board with 1.91" RM67162 display, onboard RTC, PMU, SD card slot, capacitive touch, metal shielding, and external FPC antenna.

ESP32-S3R816MBWiFi 802.11 b/g/n 2.4 GHzBLE BLE 5.0

Iot Sensor Display Data Logging Smart Home Dashboard Portable Device Hmi Panel

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LILYGO T-SIM7070G

ESP32

ESP32-WROVER-E development board with SIM7070G NB-IoT/LTE-M/GPRS modem, GPS, Wi-Fi, Bluetooth 4.2, MicroSD, and solar charging input for ultra-low-power IoT applications.

ESP32-WROVER-E520KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 4.2

Asset Tracking Iot Sensors Smart Agriculture Remote Monitoring Fleet Management Environmental Monitoring

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LILYGO T-Display AMOLED Lite

ESP32 S3

Compact ESP32-S3 development board featuring a 1.47" RM67162 AMOLED display with QSPI interface, 16MB Flash, 8MB PSRAM, Wi-Fi, Bluetooth 5, and battery charging support.

ESP32-S3R816MBWiFi 802.11 b/g/n 2.4 GHzBLE BLE 5.0

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~$36View