{"product_id":"gy-471-max471-current-sensor-module-3a-bidirectional-high-side-detection","title":"GY-471 MAX471 Current Sensor Module 3A Bidirectional High-Side Detection","description":"\u003cp\u003eGY-471 MAX471 Current Sensor Module delivers laboratory-grade current measurement for Arduino, Raspberry Pi, and embedded systems. Built around the MAX471 IC from Analog Devices, this module provides high-side current sensing that monitors circuits without disrupting ground paths, making it ideal for battery management systems, power monitoring, and IoT applications. Advanced High-Side Current Sensing Technology The MAX471 IC features sophisticated high-side current sensing technology that integrates seamlessly into power distribution networks. Unlike low-side sensors that interfere with system grounding, this module monitors current flow while preserving critical ground paths, essential for battery-powered systems and sensitive electronic applications.\u003c\/p\u003e\n\u003cp\u003eKey Technical Specifications:\u003c\/p\u003e\n\u003cp\u003eCurrent Range: ±3A bidirectional measurement\u003c\/p\u003e\n\u003cp\u003eSupply Voltage: 3V to 36V DC (universal compatibility)\u003c\/p\u003e\n\u003cp\u003eAccuracy: ±2% over temperature range\u003c\/p\u003e\n\u003cp\u003eSensitivity: 1V per ampere output\u003c\/p\u003e\n\u003cp\u003ePower Consumption: \u0026lt;100µA\u003c\/p\u003e\n\u003cp\u003eCompact Size: 19.5mm × 20.3mm PCB footprint\u003c\/p\u003e\n\u003cp\u003eBidirectional Current Detection Monitor both charging and discharging currents with automatic direction sensing. The integrated SIGN pin provides real-time indication of current flow direction, essential for battery management, solar panel monitoring, and power flow analysis. Precision Internal Shunt Resistor.\u003c\/p\u003e\n\u003cp\u003eThe factory-calibrated 35mΩ internal shunt eliminates external current sensing resistors, reducing component count and improving reliability. This precision element ensures consistent performance across temperature variations.\u003c\/p\u003e\n\u003cp\u003eUniversal Voltage Compatibility From 3V microcontroller projects to 36V industrial applications, the GY-471 adapts to your power requirements.\u003c\/p\u003e\n\u003cp\u003eThis wide voltage range supports automotive electronics, industrial automation, and renewable energy systems.\u003c\/p\u003e\n\u003cp\u003ePlug-and-Play Arduino Integration Simple analog output interface connects directly to any microcontroller ADC input. No complex I2C protocols, just straightforward voltage readings that translate directly to current measurements.\u003c\/p\u003e\n\u003cp\u003eApplications Smart Battery Management: Monitor charging and discharging cycles in real-time, implement intelligent power cut-off systems, and track battery health and performance metrics.\u003c\/p\u003e\n\u003cp\u003eIoT Energy Monitoring: Build smart home energy meters, monitor appliance power consumption, and develop solar panel performance trackers.\u003c\/p\u003e\n\u003cp\u003eIndustrial \u0026amp; Automation: Motor current monitoring and protection, power supply quality assessment, and equipment health monitoring.\u003c\/p\u003e\n\u003cp\u003eEngineer-Friendly Design High-quality PCB with gold-plated contacts ensures long-term reliability.\u003c\/p\u003e\n\u003cp\u003eIntelligent thermal design with adequate copper area ensures stable operation under continuous 3A load conditions.\u003c\/p\u003e\n\u003cp\u003eThe open-collector SIGN output interfaces with 3.3V and 5V logic systems, providing reliable current direction indication.\u003c\/p\u003e\n\u003cp\u003ePerformance Advantages Laboratory testing confirms ±2% accuracy over the full temperature range. Fast response time under 10µs captures rapid current changes, suitable for dynamic load monitoring and motor control applications. Engineered for reliable operation from -40°C to +85°C, ensuring consistent performance across diverse environmental conditions. Simple Integration Process RS+ → Connect to positive power source RS- → Connect to load positive terminal GND → System ground reference OUT → Analog input (ADC) pin SIGN → Digital input (optional direction sensing)\u003c\/p\u003e","brand":"The Electronics Hub","offers":[{"title":"Default Title","offer_id":57623158292805,"sku":"34-130","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0803\/6161\/9781\/files\/Max471-Voltage-Current-Sensor-Module-For-Arduino-AVR-Tester-Board-5V-DC-3-25V-0-3A_1.avif?v=1775566169","url":"https:\/\/www.tehonline.co.uk\/products\/gy-471-max471-current-sensor-module-3a-bidirectional-high-side-detection","provider":"The Electronics Hub","version":"1.0","type":"link"}