SKU: IOWC-1828
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Wemos 0.91" White OLED Display ESP8266 NodeMCU WiFi Module

₹889.00 (Inclusive of all taxes)
Out of Stock

This Wemos development board integrates a 0.91-inch white OLED display with a NodeMCU ESP8266 module, providing a visual interface for IoT projects. It is programmable via the Arduino IDE or ESP8266 SDK for Wi-Fi-enabled applications.

Features

  • Integrated 0.91-inch white OLED display for clear status readouts and UI.
  • Powered by the ESP8266 Wi-Fi SoC for 2.4GHz 802.11 b/g/n connectivity.
  • NodeMCU form factor with easy-access GPIO pins for sensor and actuator interfacing.
  • Compact design (50mm x 18mm) ideal for space-constrained IoT prototypes.
  • Fully compatible with Arduino IDE, ESP8266 Core, and Lua-based NodeMCU firmware.

Out of stock

Description

The Wemos OLED ESP8266 module combines a compact OLED screen with a full-featured Wi-Fi microcontroller, creating an all-in-one platform for connected display projects. The ESP8266 provides robust wireless networking capabilities, while the integrated 128×32 pixel OLED offers a low-power visual output for data logging, system status, or user interaction without needing external components.

Built on the popular NodeMCU development board layout, it exposes multiple GPIO, I2C, SPI, and UART pins for expanding functionality with sensors, relays, or communication modules. Its single-board design simplifies prototyping for smart home dashboards, environmental monitors, and wireless sensor nodes that require local feedback.

Key Features

  • Combined display and processing unit reduces wiring complexity and footprint.
  • White OLED offers high contrast and wide viewing angles for clear readability.
  • Onboard USB-to-serial chip enables easy programming and power over micro-USB.
  • Supports Wi-Fi client, access point, and mesh networking modes for flexible deployment.
  • Low-power display technology complements the ESP8266's deep sleep capabilities for battery operation.
  • Direct compatibility with vast ESP8266 libraries and community projects.

Applications

  • Smart home status displays and control panels.
  • Portable IoT sensor nodes with local data visualization.
  • Wi-Fi-enabled environmental monitors showing real-time readings.
  • Prototyping wireless dashboards for makers and developers.
  • Educational tools for learning embedded systems and IoT.

Technical Specifications

Microcontroller/SoCESP8266 (NodeMCU)
Wireless ProtocolWi-Fi 2.4GHz 802.11 b/g/n
Display0.91-inch White OLED (128x32 pixels)
Supply Voltage5V via Micro-USB, 3.3V operation
InterfacesGPIO, I2C, SPI, UART, ADC
ProgrammingArduino IDE, ESP8266 Core, NodeMCU Lua
Operating TemperatureApprox. -40°C to 85°C
Dimensions50mm x 18mm (LxW)

Frequently Asked Questions

How do I program this Wemos OLED ESP8266 module?

You can program it using the Arduino IDE by installing the ESP8266 board support package. Select 'NodeMCU 1.0' as the board, connect via the onboard micro-USB port, and upload your sketches. Alternatively, you can use the ESP8266 SDK or flash NodeMCU's Lua firmware for script-based development. The onboard CH340 or CP2102 USB-to-serial chip handles the communication.

What is the resolution and interface of the integrated OLED display?

The integrated 0.91-inch white OLED display has a resolution of 128x32 pixels. It typically communicates with the ESP8266 via the I2C protocol, using two GPIO pins (SCL and SDA). This frees up other pins for sensors and peripherals. Libraries like 'SSD1306' or 'Adafruit_SSD1306' are readily available to drive the display with text and graphics in your projects.

Can this module be powered by a battery for portable applications?

Yes, the module can be powered by a 3.7V LiPo battery connected to the 3.3V and GND pins, bypassing the USB port. The ESP8266 and OLED are both 3.3V devices. For extended battery life, utilize the ESP8266's deep sleep mode, which drastically reduces current consumption, and briefly wake the system to update the display and transmit data over Wi-Fi.

Package Includes

  • 1 x Wemos 0.91" White OLED Display ESP8266 NodeMCU WiFi Module

Additional Information

Weight 0.007 kg
Dimensions 5 × 1.8 cm