Non-invasive AC current sensor board for smart energy monitoring. Works with ESPHome & Home Assistant.
Designed by Sprig Labs in Greece
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What is it? Sap is a compact, non-invasive AC current measurement module designed to work seamlessly with the Sprig ESP32-C3 Development Board and the SprigStack ecosystem. Using a Current Transforme…
Read More…Sap is a compact, non-invasive AC current measurement module designed to work seamlessly with the Sprig ESP32-C3 Development Board and the SprigStack ecosystem. Using a Current Transformer (CT) sensor, Sap enables safe and reliable monitoring of AC power consumption for smart home and IoT projects.
Monitoring power usage is key to building smarter and more energy-efficient systems. We created Sap to give makers and DIYers an easy way to track current draw from AC appliances without modifying high-voltage wiring.
✔ Non-Invasive AC Monitoring – Safe current sensing with standard CT clamps (e.g., SCT-013).
✔ Compact & Modular – Easily stacks with the Sprig ESP32-C3 and other SprigStack modules.
✔ Ideal for Smart Homes – Monitor appliances, detect usage patterns, or trigger automations.
✔ ESPHome & Home Assistant Ready – Integrates smoothly into your smart home setup.
✔ Simple & Safe – Designed for reliability and low-interference sensing.
Sap is perfect for tracking power usage on devices like water heaters, washing machines, HVAC units, or any AC load. Add smart energy insights to your projects—one watt at a time.
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