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WiFi BT Wireless Module for ESP32-C3 – 0.42″ OLED Display Supermini Development Board with Ceramic Antenna Core Board for Arduino. This compact, high‑performance module is engineered for rapid prototyping, IoT projects, and embedded systems that demand reliable wireless connectivity and a crisp visual interface.
Product Overview
Designed around the powerful ESP32‑C3 chip, this supermini board delivers dual‑band WiFi (2.4 GHz) and Bluetooth 5.0 in a single, space‑saving package. The integrated 0.42″ OLED screen provides instant feedback, while the ceramic antenna core ensures clear, stable signal transmission even in challenging environments.
Key Features
- ESP32‑C3 MCU: 240 MHz single‑core processor, 448 KB SRAM, 4 MB flash
- Dual‑mode WiFi & Bluetooth 5.0 for versatile connectivity
- 0.42″ OLED display: 128 × 64 pixels, 4‑wire interface
- Ceramic antenna core: high‑gain, low profile, plug‑and‑play
- Arduino‑compatible pinout & libraries for easy integration
- Low power consumption: deep sleep mode, configurable wake‑up
- Robust, industrial‑grade components for reliable operation
- Compact footprint: 22 × 22 mm, ideal for wearable and portable devices
Specifications
Dimensions: 22 mm × 22 mm × 5 mm
Operating Voltage: 3.0 V – 3.6 V
Operating Temperature: –40 °C to +85 °C
Connectivity: 2.4 GHz WiFi, Bluetooth 5.0, UART, I²C, SPI, PWM, ADC, DAC
Why Choose This Module?
Whether you’re building a smart sensor, a wearable gadget, or a home automation hub, this WiFi BT Wireless Module offers:
- Instant visual feedback with the built‑in OLED display
- Seamless integration with Arduino IDE and popular development stacks
- Reliable, high‑gain ceramic antenna for extended range
- Power‑efficient design that supports battery‑powered applications
- Ready‑to‑use libraries and example code for rapid deployment
Upgrade your next project with the WiFi BT Wireless Module for ESP32-C3 – the perfect blend of connectivity, display, and compact engineering.
Price: Original price was: $ 11.28.$ 3.95Current price is: $ 3.95.