{"product_id":"3-7-inch-hink-e037a03-a1-e-paper-display-4-grayscale-24pin-spi","title":"3.7\" HINK-E037A03-A1 E-Paper Display 4 Grayscale 24-Pin SPI","description":"\n\u003ch2\u003e3.7-Inch E-Paper Display Module – HINK-E037A03-A1\u003c\/h2\u003e\n\u003cp\u003eUpgrade your DIY electronics project with the \u003cstrong\u003eRaderBook HINK-E037A03-A1 3.7-inch e-paper display\u003c\/strong\u003e. This ultra-low-power electronic ink screen delivers crisp black-and-white visuals with up to \u003cstrong\u003e4 levels of grayscale\u003c\/strong\u003e, making it ideal for smart badges, IoT devices, digital price tags, weather stations, and custom embedded displays. With a near-zero standby power draw of just 0.09 mW, it's perfect for battery-powered applications where energy efficiency is critical.\u003c\/p\u003e\n\n\u003cp\u003eThe display connects via a \u003cstrong\u003e24-pin FPC connector\u003c\/strong\u003e and communicates over a standard \u003cstrong\u003eSPI interface\u003c\/strong\u003e, ensuring straightforward integration with popular microcontrollers like Arduino, Raspberry Pi, and ESP32. Driven by the reliable \u003cstrong\u003eUC8171 IC\u003c\/strong\u003e, this screen supports a full refresh in just 4 seconds and retains its image without any power — a hallmark of e-ink technology.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e📐 \u003cstrong\u003e3.7-inch\u003c\/strong\u003e dot matrix e-paper panel\u003c\/li\u003e\n  \u003cli\u003e🖤 \u003cstrong\u003eBlack \u0026amp; white\u003c\/strong\u003e with up to \u003cstrong\u003e4-level grayscale\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e📊 \u003cstrong\u003eResolution:\u003c\/strong\u003e 416 × 240 pixels\u003c\/li\u003e\n  \u003cli\u003e🔌 \u003cstrong\u003eInterface:\u003c\/strong\u003e SPI | \u003cstrong\u003eConnector:\u003c\/strong\u003e 24-Pin FPC\u003c\/li\u003e\n  \u003cli\u003e⚡ \u003cstrong\u003eDriver IC:\u003c\/strong\u003e UC8171\u003c\/li\u003e\n  \u003cli\u003e🔋 Standby power: \u003cstrong\u003e0.09 mW\u003c\/strong\u003e — exceptional battery life\u003c\/li\u003e\n  \u003cli\u003e🔄 Full refresh time: \u003cstrong\u003e4 seconds\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e🌡️ Operating temp: \u003cstrong\u003e0°C – 50°C\u003c\/strong\u003e | Storage: \u003cstrong\u003e-25°C – 70°C\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e📏 Outline size: \u003cstrong\u003e92.99 × 53 × 1.18 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e📏 Active area: \u003cstrong\u003e81.536 × 47.04 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e🔘 Pixel pitch: \u003cstrong\u003e0.196 × 0.196 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e⚡ Refresh power consumption: \u003cstrong\u003e26.4 mW\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#eeeeee;\"\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003ePart Number\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003eHINK-E037A03-A1\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eSize\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e3.7 inch\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eType\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003eDot Matrix\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eConnector\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e24-Pin FPC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#eeeeee;\"\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eDriver IC\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003eUC8171\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eMax Grayscale\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eResolution\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e416 × 240\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eColor\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003eBlack, White\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#eeeeee;\"\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eOutline Size (mm)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e92.99 × 53 × 1.18\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eInterface\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003eSPI\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eActive Size (mm)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e81.536 × 47.04\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eFull Refresh (s)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#eeeeee;\"\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003ePixel Pitch (mm)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e0.196 × 0.196\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eRefresh Power (mW)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e26.4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eOperating Temp.\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e0°C – 50°C\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eStandby Power (mW)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e0.09\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background-color:#eeeeee;\"\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003eStorage Temp.\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e-25°C – 70°C\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;font-weight:bold;\"\u003ePCB Included\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003eNo\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eGreat Pairings for Your Project\u003c\/h3\u003e\n\u003cp\u003eLooking for storage solutions to keep your components organized? Check out our \u003ca href=\"\/products\/airtight-transparent-pet-storage-bottle-craft-beads-home-organization\"\u003eAirtight Transparent PET Storage Bottle\u003c\/a\u003e — perfect for keeping small electronic parts and accessories tidy. Need a compact container for loose components on the go? Our \u003ca href=\"\/products\/ceramic-mini-sealed-storage-jar-portable-travel-container\"\u003eCeramic Mini Sealed Storage Jar\u003c\/a\u003e is a handy portable option.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What microcontrollers are compatible with the HINK-E037A03-A1 e-paper display?\u003c\/h4\u003e\n\u003cp\u003eA: The HINK-E037A03-A1 uses a standard SPI interface, making it compatible with a wide range of microcontrollers and single-board computers, including Arduino, Raspberry Pi, ESP32, and STM32. You will need to implement or adapt a driver using the UC8171 IC specifications, which are available in the datasheet.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the e-paper display retain its image when power is turned off?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — one of the core advantages of e-paper (electronic ink) technology is that it retains a static image without any power draw. Only screen refreshes consume energy, which is why the standby power consumption is just 0.09 mW. This makes it ideal for battery-powered devices that display infrequently changing information.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is a PCB or driver board included with the HINK-E037A03-A1 display?\u003c\/h4\u003e\n\u003cp\u003eA: No, a PCB is not included with this listing. You will receive the bare 3.7-inch e-paper display module with a 24-pin FPC connector. A compatible breakout board or FPC adapter will be required to interface the display with your development platform.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does \"4 grayscale\" mean for this e-paper screen?\u003c\/h4\u003e\n\u003cp\u003eA: The HINK-E037A03-A1 supports up to 4 levels of grayscale, meaning each pixel can be rendered in one of four shades — from pure white to pure black, with two intermediate gray tones. This allows for more detailed and visually nuanced content compared to a standard 1-bit (pure black and white only) e-ink display.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What microcontrollers are compatible with the HINK-E037A03-A1 e-paper display?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The HINK-E037A03-A1 uses a standard SPI interface, making it compatible with a wide range of microcontrollers and single-board computers, including Arduino, Raspberry Pi, ESP32, and STM32. You will need to implement or adapt a driver using the UC8171 IC specifications, which are available in the datasheet.\"}}, {\"@type\": \"Question\", \"name\": \"Does the e-paper display retain its image when power is turned off?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — one of the core advantages of e-paper (electronic ink) technology is that it retains a static image without any power draw. Only screen refreshes consume energy, which is why the standby power consumption is just 0.09 mW. This makes it ideal for battery-powered devices that display infrequently changing information.\"}}, {\"@type\": \"Question\", \"name\": \"Is a PCB or driver board included with the HINK-E037A03-A1 display?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, a PCB is not included with this listing. You will receive the bare 3.7-inch e-paper display module with a 24-pin FPC connector. A compatible breakout board or FPC adapter will be required to interface the display with your development platform.\"}}, {\"@type\": \"Question\", \"name\": \"What does \\\"4 grayscale\\\" mean for this e-paper screen?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The HINK-E037A03-A1 supports up to 4 levels of grayscale, meaning each pixel can be rendered in one of four shades — from pure white to pure black, with two intermediate gray tones. This allows for more detailed and visually nuanced content compared to a standard 1-bit (pure black and white only) e-ink display.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/gf1krb-by.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/gf1krb-by.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"3.7\\\" HINK-E037A03-A1 E-Paper Display 4 Grayscale 24-Pin SPI\", \"item\": \"https:\/\/gf1krb-by.myshopify.com\/products\/3-7-inch-hink-e037a03-a1-e-paper-display-4-grayscale-24pin-spi\"}]}\u003c\/script\u003e","brand":"NIFTY","offers":[{"title":"Default Title","offer_id":67873093091552,"sku":"\u003cnone\u003e","price":66.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/5384\/6496\/files\/S34879a4261d940619c2a0ddf61670c51j.webp?v=1791726435","url":"https:\/\/niftyshopmart.com\/products\/3-7-inch-hink-e037a03-a1-e-paper-display-4-grayscale-24pin-spi","provider":"NIFTY","version":"1.0","type":"link"}