{"product_id":"esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ultra-low-power-electronic-smart-watch-2025","title":"ESP32 Open Source V2.0 Gift E-ink Display Smart Watch Display Screen 200x200 Ultra-low Power Electronic Smart Watch 2025","description":"\u003csection data-tufzen-geo-summary=\"v1\" class=\"tufzen-product-summary\"\u003e\u003ch2\u003eProduct Summary\u003c\/h2\u003e\n\u003cp\u003eESP32 Open Source V2.0 Gift E-ink Display Smart Watch Display Screen 200x200 Ultra-low Power is a development board selected for building connected devices, firmware tests and rapid electronics prototypes. It is suitable for makers, embedded developers and IoT prototyping teams who need practical electronics hardware for reliable project work.\u003c\/p\u003e\n\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ebuilding connected devices, firmware tests and rapid electronics prototypes\u003c\/li\u003e\n\u003cli\u003eArduino, MicroPython, sensors, displays and expansion modules\u003c\/li\u003e\n\u003cli\u003eElectronics testing, repair, prototyping and maker workflows\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWho is this product for?\u003c\/strong\u003e It is intended for makers, embedded developers and IoT prototyping teams.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should I check before buying?\u003c\/strong\u003e Review the product options, specifications, included accessories and compatibility details on this page.\u003c\/p\u003e\u003c\/section\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cdiv\u003e\n\u003cp style='font-family:\"Comic Sans MS\", Verdana, Georgia;font-size:16px'\u003eProduct name: Watch ESP32 programmable open source electronic watch\u003cbr\u003e\u003cbr\u003e Product color: black\u003cbr\u003e\u003cbr\u003e Screen size: 1.54in\u003cbr\u003e\u003cbr\u003e Product resolution: 200x200\u003cbr\u003e\u003cbr\u003e Features:\u003cbr\u003e 1. Ultra-low power e-paper 1.54-inch display with a resolution of 200x200 and a wide viewing angle\u003cbr\u003e 2.Wi-Fi and Bluetooth LE connection\u003cbr\u003e 3.3 bio-signal rate meter for axial hearing testing\u003cbr\u003e 4. Real-time clock with calendar and alarm functions for accurate timing\u003cbr\u003e 5. Built-in USB serial port to firmware, can be programmed anytime and anywhere\u003cbr\u003e 6. Vibration motor for alarm\u003cbr\u003e 7. Four buttons (use imported buttons, which feel better)\u003cbr\u003e 8. Open source hardware and software\u003cbr\u003e 9. Tons of examples and cool looks\u003cbr\u003e 10. Open source 3D case design\u003cbr\u003e 11. Built-in 3.7V 200mAh battery\u003cbr\u003e 12. The PCB lower cover is used to better protect the screen, battery and various PMP battery life on the motherboard.\u003cbr\u003e\u003cbr\u003e What to use: Watch wakes up every 60 seconds, checks the accelerometer, real-time clock, and updates the e-paper display with the latest information. WiFi is turned on during certain hours to obtain weather data. The Watchy's battery life should be 5-7 days for timekeeping only, and 2-3 days for data acquisition over WiFi. These numbers can be expanded with further optimization (e.g. sleep during off-hours, only get up when exercising\/waking up, etc.)\u003cbr\u003e\u003cbr\u003e User Manual: Please scan the QR code on the product packaging\u003cbr\u003e\u003cbr\u003e Special note: Please be sure to select the hardware version V2.0 when flashing\u003cbr\u003e\u003cbr\u003e Product gross weight: 72g\u003cbr\u003e\u003cbr\u003e Package includes: Watch*1 V2.0 *1 (built-in 200mAh battery) Logic strap*1 USB data cable*1\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-1.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-2.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-3.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-4.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-5.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-6.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-7.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-8.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-9.webp?v=1779193412\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-10.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-11.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-12.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-13.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-14.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003cbr\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/tufzen-esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ult-15.webp?v=1779193413\" style=\"max-width:100%;width:800px\" width=\"800px\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style='font-family:\"Comic Sans MS\", Verdana, Georgia;font-size:16px'\u003eThank you for your attention, We guarantee the quality of our products.Have a nice day!\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cbr\u003e","brand":"Espressif","offers":[{"title":"A","offer_id":47117530398978,"sku":"12000048476404700","price":52.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/7674\/3938\/files\/Sf0bb58a407ac48d58ab8aac6ab8f928dx.webp?v=1765272093","url":"https:\/\/proengi.com\/products\/esp32-open-source-v2-0-gift-e-ink-display-smart-watch-display-screen-200x200-ultra-low-power-electronic-smart-watch-2025","provider":"PROENGI","version":"1.0","type":"link"}