# LILYGO ESP32 OLED V3.0

> ESP32 development board with integrated 0.96-inch SSD1306 OLED display, 4MB Flash, 520KB SRAM, WiFi, Bluetooth dual-mode, USB-C, and onboard LiPo battery charging for compact IoT display projects.

## Quick Facts

- **Brand:** LILYGO
- **Board Type:** ESP32
- **Price:** ~$8.16
- **Product Readiness:** developer
- **CPU:** ESP32
- **CPU Architecture:** Xtensa LX6 dual-core
- **CPU Cores:** 2
- **RAM:** 520KB SRAM
- **Flash:** 4MB
- **USB:** USB-C
- **Power:** 5V + LiPo
- **Operating Voltage:** 3.3V
- **Battery:** LiPo (user-supplied, 1.25mm JST)
- **Antenna:** Built-in PCB antenna
- **Display:** 0.96" OLED 128×64

## Connectivity

- **Wifi:** 802.11 b/g/n
- **Bluetooth:** BLE 4.2

## Open Source

- **Firmware:** Yes
- **Schematics:** No
- **PCB Layout:** No

## Compatible Firmware

arduino, micropython, platformio, esphome

## Use Cases

- iot
- environmental-monitoring
- smart-home
- weather-display

## Components

- **ESP32** (mcu): Dual-core Xtensa LX6 at 240MHz with 520KB SRAM, WiFi, and Bluetooth dual-mode. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32_datasheet_en.pdf&ref=openhardware.directory&product=lilygo-esp32-oled-v3-0&source=md-export)
- **SSD1306** (display): 0.96-inch monochrome OLED display at 128×64 resolution via I2C interface. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fcdn-shop.adafruit.com%2Fdatasheets%2FSSD1306.pdf&ref=openhardware.directory&product=lilygo-esp32-oled-v3-0&source=md-export)
- **LiPo Charger** (battery-charger): Onboard single-cell LiPo battery charger with JST connector. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdatasheet.lcsc.com%2Fszlcsc%2FTP4054_C16680.pdf&ref=openhardware.directory&product=lilygo-esp32-oled-v3-0&source=md-export)

## Protocols

- **UART**
- **SPI**
- **I2C**

## Description

## Overview

The LILYGO ESP32 OLED V3.0 is a compact all-in-one development board combining the ESP32 Tensilica dual-core processor (240MHz) with an integrated 0.96-inch SSD1306 OLED display. It offers 4MB of Flash storage and 520KB SRAM, along with WiFi 802.11 b/g/n and Bluetooth dual-mode (Classic + BLE) connectivity. The board features USB-C for power and programming, and includes onboard lithium battery charging circuitry with a JST connector for LiPo batteries. It is ideal for small IoT display nodes, wireless sensor displays, portable environmental monitors, and smart home status panels where a built-in screen is needed without external wiring.

## Where to Buy

- [LILYGO Official](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Fesp32-oled-v3-0&ref=openhardware.directory&product=lilygo-esp32-oled-v3-0&source=md-export) — $8.16

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Flilygo.cc%2Fproducts%2Fesp32-oled-v3-0&ref=openhardware.directory&product=lilygo-esp32-oled-v3-0&source=md-export)

## Tags

`esp32`, `oled`, `ssd1306`, `development-board`, `iot`, `arduino`, `micropython`, `wifi`, `bluetooth`, `usb-c`

## Images

![LILYGO ESP32 OLED V3.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-esp32-oled-v3-0/df0cdbd3db38.jpg)
![LILYGO ESP32 OLED V3.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-esp32-oled-v3-0/0c32231fadf7.jpg)
![LILYGO ESP32 OLED V3.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-esp32-oled-v3-0/d835d58da477.jpg)
![LILYGO ESP32 OLED V3.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-esp32-oled-v3-0/9f7eb646837c.jpg)
![LILYGO ESP32 OLED V3.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-esp32-oled-v3-0/847ff71f62c7.jpg)
![LILYGO ESP32 OLED V3.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-esp32-oled-v3-0/cd812a3fddde.jpg)
![LILYGO ESP32 OLED V3.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-esp32-oled-v3-0/72ab46e23277.jpg)
![LILYGO ESP32 OLED V3.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/lilygo-esp32-oled-v3-0/aa15f39401df.png)

> **Battery Powered:** Li-Po

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