{"product_id":"type-3-esp32-based-4-digits-digital-objects-counter-with-4-channels-rf-remote-control","title":"TYPE 2- ESP32 based 4 Digits Digital Objects Counter with WiFi and 4 Channels RF remote control","description":"\u003ch2\u003e\u003cstrong\u003eTYPE 2- ESP32-Based 4-Digit Digital Object Counter (0–9999) with WiFi and 4CH RF remote control\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003eESP32-powered 4-digit digital counter\u003c\/strong\u003e is a smart and versatile device designed to count objects automatically or manually. It can display values from \u003cstrong\u003e0 to 9999\u003c\/strong\u003e using a bright, colorful LED matrix display. The system uses a \u003cstrong\u003ephotoresistor–laser beam mechanism\u003c\/strong\u003e to detect passing objects and increment the count with precision.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0217\/9979\/6836\/files\/dimensions_474a9c5b-6b4b-4858-b6d7-2ccfc9c8f5b6.jpg?v=1786149765\" alt=\"\" width=\"342\" height=\"192\"\u003e\u003c\/p\u003e\n\u003ch2\u003eHow does it work ?\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0217\/9979\/6836\/files\/howdoesitwork.jpg?v=1786148909\" alt=\"\" width=\"352\" height=\"181\"\u003e\u003c\/p\u003e\n\u003cp\u003eWith \u003cstrong\u003ebuilt-in WiFi\u003c\/strong\u003e, you can access a \u003cstrong\u003ebrowser-based control panel\u003c\/strong\u003e directly from your phone or computer—no app installation required. Simply connect to the ESP32’s WiFi access point and manage the counter wirelessly.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0217\/9979\/6836\/files\/App_for_RF.jpg?v=1786154945\" alt=\"\" width=\"340\" height=\"759\"\u003e\u003c\/p\u003e\n\u003ch2\u003eDemo Video:\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe width=\"750\" height=\"420\" src=\"https:\/\/www.youtube.com\/embed\/LxTKFuWsO_E\" title=\"Basic Objects Counter with RF BUILDCIRCUITS\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCheck out all the images at \u003ca href=\"https:\/\/photos.app.goo.gl\/oddhgJuFsFJCPwdz9\" rel=\"noopener\" target=\"_blank\"\u003ehttps:\/\/photos.app.goo.gl\/oddhgJuFsFJCPwdz9\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eCommon Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAutomatic Object Counting:\u003c\/strong\u003e\u003cbr\u003eA \u003cstrong\u003elaser beam\u003c\/strong\u003e constantly shines on the \u003cstrong\u003ephotoresistor\u003c\/strong\u003e. When the beam is interrupted (object passes through), the counter increases by one. Users can restrict photoresistor from counting via web interface.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManual Controls and RF remote control\u003c\/strong\u003e\u003cbr\u003eThree onboard buttons let you control the counter easily:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUP:\u003c\/strong\u003e Increase count manually\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDOWN:\u003c\/strong\u003e Decrease count manually\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRESET:\u003c\/strong\u003e Reset the counter to zero\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes RF remote control module\u003c\/strong\u003e\u003cbr\u003eSupports \u003cstrong\u003eRF remote control\u003c\/strong\u003e for wireless count up and count down\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0217\/9979\/6836\/files\/Screenshot_8.png?v=1786151732\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiFi Access \u0026amp; Web Control:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eConnect to WiFi network: \u003cstrong\u003eSSID:\u003c\/strong\u003e ESP32_\u003ccode\u003eCOUNTER_AP\u003c\/code\u003e | \u003cstrong\u003ePassword:\u003c\/strong\u003e \u003ccode\u003e12345678\u003c\/code\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOpen browser and visit \u003cstrong\u003e\u003ca rel=\"noopener\" class=\"decorated-link\" href=\"http:\/\/192.168.4.1\"\u003ehttp:\/\/192.168.4.1\u003cspan class=\"ms-0.5 inline-block align-middle leading-none\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"\u003e\u003cuse href=\"\/cdn\/assets\/sprites-core-eri7ssmm.svg#304883\" fill=\"currentColor\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAccess an intuitive web interface to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eIncrement or decrement the count remotely\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSet a specific count value, for example, 453\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStop further counting\u003c\/strong\u003e after reaching the target value\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnable or \u003cstrong\u003erestrict photoresistor-based counting\u003c\/strong\u003e when required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChange display color\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCustomizable Display Colors:\u003c\/strong\u003e\u003cbr\u003eChoose from \u003cstrong\u003efive vivid colors\u003c\/strong\u003e — Yellow, Red, White, Green, and Blue — for the 4-digit display. Use web interface for changing colors. Colors are saved even power is turned off.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0217\/9979\/6836\/files\/6colors.jpg?v=1786153910\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData Memory (Power Loss Protection):\u003c\/strong\u003e\u003cbr\u003eThe ESP32 automatically \u003cstrong\u003eremembers the last count and color settings\u003c\/strong\u003e, even after power disconnection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay Options:\u003c\/strong\u003e\u003cbr\u003eCan be used with two display sizes,\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eP3 Display (3-inch digits)-\u003c\/strong\u003e\u003cspan class=\"Yjhzub\"\u003e192mm x 96mm Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eP5 Display (5-inch digits)- \u003c\/strong\u003e320mmx160mm- you can choose to purchase separately\u003cbr\u003eBoth use \u003cstrong\u003e64×32 LED matrix panels\u003c\/strong\u003e for clear, high-contrast numbers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Supply:\u003c\/strong\u003e\u003cbr\u003eWorks with \u003cstrong\u003e5V 4A power adapter\u003c\/strong\u003e \u003cem\u003e(not included)\u003c\/em\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePlug-and-Play Design:\u003c\/strong\u003e\u003cbr\u003eNo assembly required. Comes fully pre-wired and tested. \u003cem\u003eEnclosure is included.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes Laser Module:\u003c\/strong\u003e\u003cbr\u003eHigh-quality laser emitter included for reliable photoresistor detection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications \u0026amp; Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis counter is suitable for a wide range of \u003cstrong\u003eindustrial, commercial, and hobby projects\u003c\/strong\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFactory or workshop production lines\u003c\/strong\u003e – count items as they pass on a conveyor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePeople counters\u003c\/strong\u003e – monitor entries or exits through a doorway.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEvent or game scoring systems\u003c\/strong\u003e – track scores or hits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDIY electronics projects\u003c\/strong\u003e – educational or experimental use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInventory or packaging lines\u003c\/strong\u003e – automatic quantity tracking.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExhibition and display counters\u003c\/strong\u003e – show live object or visitor counts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eGeneral Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"\"\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMicrocontroller\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eESP32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64×32 RGB LED Matrix (P3 or P5)- INDOOR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCounting Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–9999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCounting Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePhotoresistor + Laser detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManual Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Buttons (UP, DOWN, RESET)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWireless Access\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eESP32 Access Point Mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeb Interface URL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca rel=\"noopener\" class=\"decorated-link\" href=\"http:\/\/192.168.4.1\"\u003ehttp:\/\/192.168.4.1\u003cspan class=\"ms-0.5 inline-block align-middle leading-none\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"\u003e\u003cuse href=\"\/cdn\/assets\/sprites-core-eri7ssmm.svg#304883\" fill=\"currentColor\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V \/ 4A (adapter not included, purchase separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory Retention\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSaves count \u0026amp; color after power off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRed, Green, Blue, Yellow, White\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Accessories\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLaser module, photoresistor module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePackage includes: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Objects Counter Module with enclosure\u003c\/li\u003e\n\u003cli\u003e1 x 433Mhz remote control- 10 meter range\u003c\/li\u003e\n\u003cli\u003e1 x P3 \u003cstrong\u003e64×32 dot matrix display- \u003c\/strong\u003e\u003cspan class=\"Yjhzub\"\u003e192mm x 96mm \u003c\/span\u003edisplay- DEFAULT\u003c\/li\u003e\n\u003cli\u003e1 x P5 INDOOR \u003cstrong\u003e64×32 dot matrix display- \u003c\/strong\u003e\u003cspan class=\"Yjhzub\"\u003e320mmx160mm \u003c\/span\u003edisplay- OPTIONAL\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1 x Laser Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's not included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou need to purchase these separately:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e5V 4A power supply(essential)\u003c\/li\u003e\n\u003cli\u003e64x32 pixels P5 dot matrix display(Optional)\u003c\/li\u003e\n\u003cli\u003eHC-12 Long Range Remote Control(200m)\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"BUILDCIRCUITS","offers":[{"title":"P3- 192x96mm Display Counter","offer_id":42596626432098,"sku":null,"price":95.0,"currency_code":"USD","in_stock":true},{"title":"P5- 320x160mm Display Counter","offer_id":42596626464866,"sku":null,"price":105.0,"currency_code":"USD","in_stock":true},{"title":"5V 4A power supply","offer_id":42596626497634,"sku":null,"price":15.0,"currency_code":"USD","in_stock":true},{"title":"HC-12 Long range remote control","offer_id":42596626530402,"sku":null,"price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0217\/9979\/6836\/files\/dsafg.png?v=1786168870","url":"https:\/\/buildcircuits.com\/products\/type-3-esp32-based-4-digits-digital-objects-counter-with-4-channels-rf-remote-control","provider":"BUILDCIRCUITS","version":"1.0","type":"link"}