{"product_id":"xiao-logger-hat","title":"XIAO Logger HAT","description":"\u003ch4\u003eXIAO Logger HAT - Temperature, Humidity, Light and Time in One Tiny Add-On\u003c\/h4\u003e\n\u003cp\u003eBuilding a data logger usually means sourcing multiple breakout boards, writing drivers for each sensor, and figuring out how to keep everything accurate over time. The \u003cstrong\u003eXIAO Logger HAT\u003c\/strong\u003e collapses all of that into a single, XIAO-sized add-on board that's ready to log from the moment it's connected.\u003c\/p\u003e\n\u003cp\u003eThis compact HAT integrates four key components onto one board: a \u003cstrong\u003eSensirion SHT40\u003c\/strong\u003e for accurate temperature and humidity sensing, a \u003cstrong\u003eBH1750\u003c\/strong\u003e ambient light sensor, a \u003cstrong\u003ePCF8563 real-time clock (RTC)\u003c\/strong\u003e for accurate timestamping without a network connection, and an \u003cstrong\u003eenableable voltage divider\u003c\/strong\u003e for monitoring battery voltage. This is essential for unattended, battery-powered deployments.\u003c\/p\u003e\n\u003cp\u003eAll four components communicate over \u003cstrong\u003eI2C\u003c\/strong\u003e, keeping your XIAO's GPIO usage minimal. The power supply enable pin lets you cut power to the sensors entirely when not sampling, extending battery life significantly in low-duty-cycle logging applications. At just \u003cstrong\u003e21 x 17.8 mm\u003c\/strong\u003e, it stacks neatly onto any XIAO board without adding bulk.\u003c\/p\u003e\n\u003cp\u003eThis product is a \u003cstrong\u003eco-creation between Seeed Studio and Westlake University's Marcel,\u003c\/strong\u003e a genuine collaboration between industry and academic research.\u003c\/p\u003e\n\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSensirion SHT40 - precision temperature and humidity sensing\u003c\/li\u003e\n\u003cli\u003eBH1750 - calibrated ambient light measurement (lux)\u003c\/li\u003e\n\u003cli\u003ePCF8563 RTC - accurate timekeeping without network dependency\u003c\/li\u003e\n\u003cli\u003eEnableable voltage divider for battery voltage monitoring\u003c\/li\u003e\n\u003cli\u003eAll sensors on I2C - minimal GPIO usage\u003c\/li\u003e\n\u003cli\u003ePower supply enable for low-power duty cycling\u003c\/li\u003e\n\u003cli\u003e21 x 17.8 mm - XIAO form factor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhy You'll Like It\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour sensors, one board:\u003c\/strong\u003e Temperature, humidity, light and time - everything a data logger needs in one HAT.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue RTC:\u003c\/strong\u003e Accurate timestamps even without Wi-Fi or GPS. Ideal for offline and remote deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery-aware:\u003c\/strong\u003e Onboard voltage monitoring tells you exactly how much power is left without extra hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower-efficient:\u003c\/strong\u003e Enable pin lets you cut sensor power between readings to maximise battery life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature \u0026amp; Humidity\u003c\/td\u003e\n\u003ctd\u003eSensirion SHT40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Light\u003c\/td\u003e\n\u003ctd\u003eBH1750 (lux calibrated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReal-Time Clock\u003c\/td\u003e\n\u003ctd\u003ePCF8563 RTC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Monitoring\u003c\/td\u003e\n\u003ctd\u003eEnableable voltage divider\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eI2C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e21 x 17.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003ePerfect For\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEnvironmental data logging (temperature, humidity, light)\u003c\/li\u003e\n\u003cli\u003eRemote and unattended sensor nodes\u003c\/li\u003e\n\u003cli\u003eSmart home and indoor climate monitoring\u003c\/li\u003e\n\u003cli\u003eLow-power battery-operated IoT deployments\u003c\/li\u003e\n\u003cli\u003eEducation and research data collection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAt K \u0026amp; A Electronics\u003c\/strong\u003e, we love add-on boards that make building data loggers genuinely easy. Order today with \u003cstrong\u003efast Australia-wide shipping and local support from our Sydney team.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Seeed Studio","offers":[{"title":"Default Title","offer_id":44658843779156,"sku":"114993446","price":20.05,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/2748\/0373\/files\/XIAO-Logger-HAT-Seeed-Studio.jpg?v=1777497753","url":"https:\/\/kandaelectronics.com.au\/products\/xiao-logger-hat","provider":"K \u0026 A Electronics ","version":"1.0","type":"link"}