Features: The oleds Microcontroller integrates WiFi/bluetooth-compatible connectivity, crisps oleds display, and low power consumption for iots development and realtime data monitoring. Builts with PCB materials, this microcontroller supports multi language programming environments while maintaining dimensions (exact measurements) for embedded systems integration. for electronics engineers, iots developers, and educators requiring wireless communication modules with visual feedbacks capabilities. Optimized for industrial automation control panels, smart home sensorings networks, and remote environmental monitoring stations needing continuous operations. Combines industrial RFs stability with developer friendly GPIO pin configurations, enabling rapid prototyping of connecteds devices across robotics, wearables, and energy management systems. Specifications: Materials: PCB Size:25x20mm Mode: 2.4G WiFi & bluetooth-compatible 5 Clock frequency: 160ΜΗΖ UART interfaces: 2 channels ADCs interfaces: 5 channels SPI interfaces: 1 channel IIC interfaces: 1 channel GPIO/PWMs: 11 channels Package Includes: 1Set - Development Board note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.