WiFIRCard – Tiny Wi-Fi + IR Powered Smart Relay Board
At just $39
- Smaller than a credit card
- Powered by ESP32-S3 for Wi-Fi + Bluetooth 5.0
- Equipped with dual relays for real-world control
- Built-in IR receiver for universal remote learning
- Designed with reinforced PCB tracks & solder masking for high-load reliability
- Ready for smart home voice control, cloud integration, and DIY projects
With WiFIRCard, you can build anything – from a smart remote-controlled home to an industrial automation system, or even your own IoT cloud dashboard.
Not only is it compact, but it’s also engineered with precision to last. With an open PCB track design and enhanced solder masking.
WiFIRCard ensures maximum current flow, making the relays more durable and efficient even under high-load conditions. This means you get a dependable automation solution that won’t let you down.
Powered by ESP32-S3
At the heart of WiFIRCard lies the ESP32-S3 WROOM-1, a powerful dual-core 32-bit LX7 microcontroller designed for high performance and low power consumption. With built-in Wi-Fi (2.4GHz) and Bluetooth 5 (LE), it delivers seamless wireless connectivity for IoT applications. Supporting up to 16MB Flash and 8MB PSRAM, it ensures smooth multitasking, fast data handling, and reliable operation even in demanding projects.
Core Specs:
- MCU: ESP32-S3 WROOM-1 with Xtensa® LX7 dual-core 32-bit
- Connectivity: 2.4 GHz Wi-Fi & Bluetooth 5 (LE)
- Flash: Up to 16 MB | PSRAM: Up to 8 MB
- Working modes: STA/AP/STA+AP
Onboard Isolation Protection
WiFIRCard is built with multiple isolation protection circuits to ensure safe and reliable operation in every environment. By carefully separating high-voltage and low-voltage tracks, it prevents electrical interference and guarantees stable performance.
The opto-isolated relay design adds an extra layer of safety, protecting both the board and your connected devices from unexpected surges or faults. Whether you’re switching household appliances or experimenting with DIY IoT projects, these protections make WiFIRCard a trusted, long-lasting, and worry-free automation companion.
Supports Arduino, Python & C/C++
WiFIRCard is designed to be developer-friendly, supporting multiple popular programming environments including Arduino IDE, MicroPython, CircuitPython, and C/C++.
Whether you’re a beginner experimenting with your first IoT project or an advanced developer building complex automation systems, WiFIRCard adapts to your workflow.
With comprehensive SDKs, libraries, and tutorials, you can get started quickly, prototype faster, and scale your ideas effortlessly. This flexibility makes WiFIRCard the perfect choice for makers, educators, and professionals alike.
