SPIDER Automation Seeeduino XIAO Expansion Board | OLED Display & RTC | For Seeed Studio XIAO Microcontrollers
Description
The SPIDER Automation Seeeduino XIAO Expansion Board is a robust, highly functional prototyping platform designed exclusively for Seeed Studio XIAO microcontroller modules. Measuring roughly half the footprint of a Raspberry Pi 4, this compact board eliminates messy breadboard wiring by consolidating an extensive array of high-value peripherals onto a single, elegant layout.
Engineered for rapid application development and wearable electronics, the board features an integrated 0.96-inch OLED display for visual data rendering, a high-precision real-time clock (RTC) with coin cell backup, a micro SD card slot for memory expansion, a passive buzzer capable of melody generation, and dedicated Grove port interfaces. Fully supporting CircuitPython and equipped with an onboard LiPo battery management circuit, it provides an all-in-one ecosystem for building smart sensor nodes, data loggers, and interactive miniature projects.


Key Features
- 0.96-Inch OLED Screen: Provides clear visual data output and debugging feedback directly on the hardware without relying on a serial monitor.
- High-Precision Real-Time Clock (RTC): Incorporates an accurate RTC with a CR1220 battery backup slot to maintain timekeeping when main power is disconnected.
- Expandable Storage (Micro SD): Features a mini SD card slot on the reverse side, removing memory limitations for complex CircuitPython libraries and large datasets.
- Plug-and-Play Grove Ports: Standardized Grove connectors support multi-protocol data communication including dual I2C, UART, and dedicated Analog/Digital channels.
- Onboard LiPo Battery Management: Includes a JST 2.0mm standard battery connector and charging chip (supporting up to 460mA current) for mobile and wearable deployments.
- Acoustic & User Input Peripherals: Integrates a passive buzzer for tone generation, a dedicated hardware reset button, and a user-programmable push button.
- Dedicated Servo & SWD Headers: Routes a 5V output header for servos/sensors alongside dedicated SWD debug pins for streamlined firmware flashing.
Benefits
- Accelerates Prototyping Workflows: Combines display, storage, and sensors onto one board, drastically reducing wiring complexity and setup time.
- Solder-Free Modular Integration: Standard Grove interfaces allow instant connection of compatible sensors and actuators without soldering.
- Complete CircuitPython Compatibility: Fully optimized for Python-based embedded development with expanded storage capacity.
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Compact & Portable Footprint: Ultra-small form factor is ideal for wearable technology, compact data loggers, and space-constrained robotics.
Applications
- IoT Sensor Hubs & Data Loggers: Collecting environmental metrics, stamping timestamps via RTC, and logging data onto micro SD cards.
- Wearable Tech & Miniaturized Electronics: Building compact, battery-powered gadgets utilizing the onboard LiPo charging circuit and OLED screen.
- Educational STEM Learning Rigs: Teaching programming, display rendering, and sensor interfacing without complex wiring harnesses.
- Rapid Proof-of-Concept Prototyping: Testing firmware and debugging code efficiently using the onboard buttons, buzzer, and visual display.
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Interactive Audio-Visual Projects: Deploying the OLED screen and passive buzzer for mini-games, alarms, or status notification panels.
Package Inclusions
- 1 x SPIDER Automation Seeeduino XIAO Expansion Board
Technical Specifications
| Item Type | Functional Expansion Board for Microcontrollers |
| Brand / Series | SPIDER Automation |
| Controller Compatibility | Seeed Studio Seeeduino XIAO Module (Module not included) |
| Visual Display | 0.96-Inch OLED Display Screen |
| Real-Time Clock (RTC) | High-Precision RTC with CR1220 Battery Backup Slot |
| Memory Expansion | Mini SD Card Slot (Bottom Mounted) |
| Battery Charging Management | JST 2.0mm LiPo Connector | Max Charging Current: 460mA |
| Grove Interface Ports | 2 × Grove I2C, 1 × Grove UART, 1 × A0/D0 Grove Port |
| Auxiliary Peripherals | Passive Buzzer, RESET Button, User-Defined Button, SWD Debug Pins, 5V Servo Header |
| Power Supply Modes | USB 5V & Standard JST LiPo Battery Dual Power Support |













