Microduino Cube-S1

The Microduino Cube-S1 is a compact expansion baseboard for the Microduino and mCookie modular electronics family. Built around a unified Upin27 socket, it lets you stack Core modules, programmers, and sensor hubs together in seconds for true plug-and-play creation, with no soldering or messy wiring needed.

Power enters through the onboard Micro USB port, and an LP2985 regulator supplies a stable 3.3V output. A jumper selects the PWR output between 3.3V and 5V, while indicator LEDs show status at a glance. Connectivity includes dual serial ports (RX0/TX0 and D2/D3), two I2C interfaces, four XH2.5-4Pin sensor connectors for plug-in peripherals, two analog buttons wired to A6, a reset key, and a dedicated base for mounting an OLED display.

• Upin27 socket for quick stacking of Microduino and mCookie modules
• Micro USB power input with 3.3V regulation
• Jumper-selectable PWR output: 3.3V or 5V
• Four XH2.5-4Pin sensor connectors
• Dual serial ports (RX0/TX0 and D2/D3) plus two I2C interfaces
• Two analog buttons tied to A6 with an onboard reset key
• Power indicator LEDs and OLED mounting base
• Fully compatible with the Arduino IDE and a rich library ecosystem

With its clean gloss surface, gold-plated pads, and black sockets arranged in the signature square layout, the Cube-S1 suits school lessons, robotics, weather stations, and countless hands-on experiments for students, educators, and hobbyists alike.