Wemos Lolin ESP32 OLED
The Wemos Lolin ESP32 OLED is an ESP32-based development board with an integrated 128×64 SSD1306 OLED display connected via I2C, enabling local data visualization without any additional display hardware. It features Espressif’s dual-core Xtensa LX6 processor with 2.4 GHz Wi-Fi, Bluetooth 4.2, and BLE, supporting MQTT-based IoT platform connectivity alongside local display feedback.
Overview
The Wemos Lolin ESP32 OLED is a compact ESP32 development board with an integrated 128×64 pixel SSD1306 OLED display. The display is connected over I2C (SDA on GPIO 5, SCL on GPIO 4), enabling on-device data visualisation without any additional wiring. The board provides Wi-Fi 802.11 b/g/n, Bluetooth, and BLE connectivity, making it well suited for smart home and building automation prototypes that require both local display output and cloud connectivity.
Key Features
- Processor: Dual-core ESP32, up to 240 MHz
- Wireless: Wi-Fi 802.11 b/g/n (2.4 GHz), Bluetooth 4.2 + BLE
- Display: 128×64 SSD1306 OLED (I2C, SDA/SCL on GPIO 5/4)
- Flash: 4 MB
- USB: Micro-USB (programming and power)
Hardware Specifications
| Parameter | Value |
|---|---|
| Chip | ESP32 |
| CPU | Dual-core, up to 240 MHz |
| Flash | 4 MB |
| Wi-Fi | 802.11 b/g/n (2.4 GHz) |
| Bluetooth | 4.2 + BLE |
| Display | SSD1306 OLED 128×64 |
| Display interface | I2C (GPIO 5 SDA, GPIO 4 SCL) |
| USB | Micro-USB |
Supported Use Cases
- Smart building and office dashboards with on-device status display
- Smart home automation with visual feedback
- IoT prototyping with LED control, blinking modes, and remote screen text updates
Device Technical Documentation
Download datasheets and manuals for the Wemos Lolin ESP32 OLED
Wemos Lolin ESP32 OLED Product page Wemos Lolin ESP32 OLED DatasheetAdd Your Device to the Community
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