{"product_id":"nrf52840-development-board-bluetooth-5-nice-nano-v2-compatible","title":"NRF52840 Dev Board – Bluetooth 5.0, Nice!Nano V2.0 Compatible","description":"\n\u003ch2\u003eNRF52840 Development Board – Bluetooth 5.0 Wireless MCU Module\u003c\/h2\u003e\n\u003cp\u003eTake your wireless keyboard and embedded projects to the next level with this powerful NRF52840 Development Board, fully compatible with Nice!Nano V2.0 and the Pro Micro footprint. Built around the Nordic nRF52840 chip, this compact dev board packs serious processing power and rock-solid Bluetooth 5.0 connectivity into a form factor that fits standard mechanical keyboard PCBs.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBluetooth 5.0:\u003c\/strong\u003e Onboard antenna for reliable, low-latency wireless communication — ideal for wireless keyboard builds and IoT projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eARM Cortex-M4F CPU:\u003c\/strong\u003e Clocked at 64 MHz with 1 MB of flash memory and 256 KB RAM for responsive, high-performance operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Battery Charging:\u003c\/strong\u003e Onboard lithium battery charge management IC supports seamless charging and discharging of LiPo\/Li-Ion batteries.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Low Standby Power:\u003c\/strong\u003e Achieves approximately 20 µA standby current consumption, extending battery life in portable and wireless builds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNice!Nano V2.0 Compatible:\u003c\/strong\u003e Drop-in replacement footprint — works directly with ZMK firmware and popular open-source keyboard PCBs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro Micro Footprint:\u003c\/strong\u003e Familiar pin layout makes it easy to integrate into existing projects designed for Pro Micro controllers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBootloader Access:\u003c\/strong\u003e Enter the Nice!Nano V2 bootloader by double-tapping RST to GND within 0.5 seconds (or double-pressing the RST button on keyboard builds).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDefault Firmware:\u003c\/strong\u003e Ships pre-flashed with Blink-All-IO program (all IO ports auto-flip every 1 second) for easy out-of-box testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChipset\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNordic nRF52840\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProcessor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eARM Cortex-M4F @ 64 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlash Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRAM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e256 KB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWireless\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBluetooth 5.0 (onboard antenna)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLithium battery charge\/discharge management\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandby Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~20 µA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNice!Nano V2.0, Pro Micro footprint, ZMK firmware\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eWhether you're building a custom wireless mechanical keyboard, prototyping a BLE IoT device, or exploring embedded ARM development, the NRF52840 dev board gives you the wireless capability, processing power, and battery management features you need — all in a compact, familiar form factor.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this NRF52840 development board compatible with ZMK firmware for wireless keyboards?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This board is designed to be fully compatible with Nice!Nano V2.0, which is one of the most popular controllers for ZMK-based wireless mechanical keyboard builds. Simply flash ZMK firmware as you would with an official Nice!Nano V2.0.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I enter the bootloader on this NRF52840 board?\u003c\/h4\u003e\n\u003cp\u003eA: To enter the Nice!Nano V2 bootloader, short RST to GND twice within 0.5 seconds. On a keyboard PCB with a physical RST button, simply press it twice quickly within 0.5 seconds. The board will then appear as a mass storage device for flashing firmware.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this board support lithium battery charging?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The onboard battery charging management chip supports lithium battery (LiPo\/Li-Ion) charging and discharging, making it ideal for building portable or wireless battery-powered devices without needing an external charging circuit.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the standby power consumption of this NRF52840 dev board?\u003c\/h4\u003e\n\u003cp\u003eA: In standby mode, the board achieves approximately 20 µA power consumption, which is excellent for battery-powered wireless projects where long battery life is important.\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\": \"Is this NRF52840 development board compatible with ZMK firmware for wireless keyboards?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! This board is designed to be fully compatible with Nice!Nano V2.0, which is one of the most popular controllers for ZMK-based wireless mechanical keyboard builds. 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