{"title":"Tools","description":"\u003ch2\u003ePrecision Tools for Makers \u0026amp; Engineers\u003c\/h2\u003e\u003cp\u003eExplore our curated selection of professional-grade electronic test and measurement equipment. Whether you're debugging circuits, measuring temperatures, or analyzing signals, we have the right tool for the job.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOscilloscopes\u003c\/strong\u003e – Visualize and analyze electronic waveforms with precision\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInfrared Thermometers\u003c\/strong\u003e – Non-contact temperature measurement for components and environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultimeters\u003c\/strong\u003e – Measure voltage, current, resistance, and more\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Generators\u003c\/strong\u003e – Generate test signals for circuit analysis\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIdeal for hobbyists, hardware hackers, and professional engineers alike.\u003c\/p\u003e","products":[{"product_id":"laogeshi-multifunctional-mechanical-watch","title":"Classic Triple-Calendar Mechanical Dress Watch","description":"\u003ch3\u003eWhat is it?\u003c\/h3\u003e\u003cp\u003eA refined \u003cstrong\u003emechanical dress watch\u003c\/strong\u003e that goes beyond simply telling the time. The dial simultaneously displays the \u003cstrong\u003emonth, date, and day of the week\u003c\/strong\u003e through a classic triple-calendar complication — a hallmark of traditional fine watchmaking, now offered at an accessible price.\u003c\/p\u003e\u003cp\u003eWound by hand and driven entirely by mechanical movement, this watch carries the quiet satisfaction of a timepiece with no battery, no circuit board — just the enduring craft of gears, springs, and precision engineering.\u003c\/p\u003e\u003ch3\u003eWhy did you make it?\u003c\/h3\u003e\u003cp\u003eGreat mechanical watches with genuine calendar complications have long been the preserve of luxury brands at premium prices. This piece brings that same horological tradition to collectors and enthusiasts who value craftsmanship over labels — a wearable piece of mechanical art that doesn’t require a significant investment to enjoy.\u003c\/p\u003e\u003ch3\u003eWhat makes it special?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple-calendar display\u003c\/strong\u003e — month, date, and day of the week shown simultaneously on the dial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePure mechanical movement\u003c\/strong\u003e — hand-wound, battery-free, built to last\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividually tested\u003c\/strong\u003e — each piece is verified for accurate timekeeping and correct calendar function before shipping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector’s appeal\u003c\/strong\u003e — a conversation piece that celebrates the art of traditional horology\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile wear\u003c\/strong\u003e — elegant enough for formal occasions, understated enough for everyday use\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Denjhang's Retro Hardware","offers":[{"title":"Default Title","offer_id":46123525275845,"sku":null,"price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/8507\/1813\/files\/2023-09-05T11_21_50.347Z-e7437128036928b8e629473aed67bba5.jpg?v=1777003923"},{"product_id":"mini-pocket-thermal-imager-32x32-open-source","title":"Mini Pocket Thermal Imager — 32x32 Open Source","description":"\u003ch2\u003eDemo \u0026amp; Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=vx4fFzM2Xmg\"\u003eYouTube Demo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/denjhang\/Mini-Pocket-Thermal-Imager\"\u003eGitHub (Open Source)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/oshwhub.com\/umekoko\/hai-man-htpa-chao-mi-ni-re-cheng-xiang-yi\"\u003eOSHWHub Project Page\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat is it?\u003c\/h2\u003e\u003cp\u003eA \u003cstrong\u003emini pocket thermal imaging camera\u003c\/strong\u003e built on the \u003cstrong\u003eHeiman HTPA32x32\u003c\/strong\u003e sensor, running on a Raspberry Pi RP2040 (ARM) chip. Weighing just \u003cstrong\u003e20g\u003c\/strong\u003e, it fits in your pocket and works the moment you power it on — no phone, no app, no setup required.\u003c\/p\u003e\u003cp\u003eDesigned by \u003cstrong\u003eUmeko Studio\u003c\/strong\u003e and \u003cstrong\u003ecompletely open source\u003c\/strong\u003e — full code, schematics, and materials provided for free secondary development.\u003c\/p\u003e\u003ch2\u003eUse Cases\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHotel room privacy inspection (hidden camera detection)\u003c\/li\u003e\n\u003cli\u003eFloor heating leak and pipe detection\u003c\/li\u003e\n\u003cli\u003eElectrical equipment temperature monitoring\u003c\/li\u003e\n\u003cli\u003ePower maintenance and fault finding\u003c\/li\u003e\n\u003cli\u003eIndoor pet location (cats, dogs)\u003c\/li\u003e\n\u003cli\u003eGeneral infrared thermography\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor:\u003c\/strong\u003e Heiman HTPA32x32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNative resolution:\u003c\/strong\u003e 32×32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay resolution:\u003c\/strong\u003e 240×240 (after bilinear interpolation algorithm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e 320×240 touch screen, 2.5D glass front\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e -20°C to 1000°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature accuracy:\u003c\/strong\u003e ±3°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame rate:\u003c\/strong\u003e 7 Hz (average)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePseudo-color modes:\u003c\/strong\u003e 5 types\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 600 mAh — 3.5 hours continuous use, 1.5 hours charge time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e USB Type-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 20g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCU:\u003c\/strong\u003e Raspberry Pi RP2040 (ARM Cortex-M0+)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSoftware Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBilinear interpolation + mosaic removal for smooth 240×240 output\u003c\/li\u003e\n\u003cli\u003eDMA + shift interpolation for high refresh rate\u003c\/li\u003e\n\u003cli\u003eEmissivity adjustment for accurate surface temperature measurement\u003c\/li\u003e\n\u003cli\u003eGamma correction — magnify detail in low or high temperature areas\u003c\/li\u003e\n\u003cli\u003eFixed-point temperature curve display + data download to PC\u003c\/li\u003e\n\u003cli\u003eManual temperature calibration (slope \u0026amp; intercept) + automatic sensor error calibration\u003c\/li\u003e\n\u003cli\u003eScreen mirroring (left\/right, top\/bottom) and 360° rotation\u003c\/li\u003e\n\u003cli\u003eAuto or manual temperature range adjustment\u003c\/li\u003e\n\u003cli\u003ePC host software for wired thermal image sync and curve recording\u003c\/li\u003e\n\u003cli\u003eLong-term stable software updates — community suggestions actively considered\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eColors Available\u003c\/h2\u003e\u003cp\u003eBlack \/ Orange \/ White \/ Yellow\u003c\/p\u003e","brand":"Denjhang's Retro Hardware","offers":[{"title":"Black","offer_id":46282842374341,"sku":null,"price":99.0,"currency_code":"USD","in_stock":true},{"title":"Yellow","offer_id":46282842407109,"sku":null,"price":99.0,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":46282842439877,"sku":null,"price":99.0,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":46282842472645,"sku":null,"price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/8507\/1813\/files\/2025-03-16T02_55_49.934Z-0BC29FCBBC8CE238BF75ABC05DA67B2C.jpg?v=1779857603"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/8507\/1813\/collections\/image_ac86139b-a30c-40d9-9578-fa992e4b2c22.png?v=1776837295","url":"https:\/\/denjhang.com\/collections\/electronic-test-equipment.oembed","provider":"Denjhang's Retro Hardware","version":"1.0","type":"link"}