3-in-1 RF Expansion Board for M5Stack Cardputer V1.1
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About this product
Overview
The 3-in-1 RF Expansion Board is a purpose-built accessory for the M5Stack Cardputer V1.1, combining three popular wireless technologies into one board to dramatically expand communication possibilities. Its standout feature is the inclusion of both short-range and long-range radios.
Key Specifications
You get simultaneous access to 868MHz LoRa for multi-kilometer telemetry, 2.4GHz Wi-Fi/BLE 4.2 for IoT cloud connections, and a 433MHz ISM transceiver for ham radio or sensor networks—all while drawing under 80mA typical current via the Cardputer's battery management.
Who It's For
This board suits IoT developers who need to bridge LoRa sensor data to the internet using the built-in Wi-Fi. It's also perfect for robotics enthusiasts requiring command links over 1 km and local debugging via BLE. Any Cardputer owner seeking a single-module upgrade for multiple radio projects should consider it.
Worth Buying?
For the price of a typical LoRa shield, you gain two extra radios without extra wiring or power budgets. It's a no-compromise expansion that justifies itself the first time you need a fallback frequency.