暗号資産でのお支払いに対応—お手持ちのコインで、本物のハードウェアをご購入いただけます。暗号資産で支払い、本物のハードウェアに使う。 $399以上のご注文で、世界中どこでも送料無料（保険付き）。無地・ノーブランドの外箱で、ドイツから発送いたします。$399以上で送料無料（保険付き）。 注文手続きを開始すると、レートは30分間ロックされます。レートは30分間ロック。 すべての商品は未開封で、シリアル番号を確認した上で、24か月保証が付いています。未開封、24か月保証。

ウォッチリスト ログイン
Two small green circuit boards with chips and USB connectors

KEHIPI

KEHIPI AITRIP Pro Micro NRF52840 Development Board 2PCS

SKU CH-0123-RG3MK

Two NRF52840 development boards with ARM Cortex-M4F at 64 MHz, 1 MB flash, 256 KB RAM, 3.7 V lithium interface and Pro Micro pin compatibility

  • ARM Cortex-M4F at 64 MHz with 1 MB flash and 256 KB RAM
  • 7 V lithium interface and software LED switch drops standby to 1 mA
  • Pro Micro pinout makes it a drop-in replacement for almost any Pro Micro keyboard
  • Built-in ADC, PWM, SPI, I2C, UART, USB and GPIO for flexible peripheral support
  • Pack includes two NRF52840 boards ready for wireless Bluetooth projects

Pro Micro NRF52840 Development Board

This pack contains two NRF52840 boards built on the Pro Micro footprint. Each board uses an ARM Cortex-M4F processor running at 64 MHz with 1 MB flash and 256 KB RAM. A 3.7 V lithium battery connector and a software-controlled LED power switch allow standby current to reach 1 mA. The boards target makers adding wireless connectivity to custom keyboards or compact IoT nodes.

Makers building Pro Micro keyboards

The pinout matches the Pro Micro layout, so the boards drop into existing keyboard PCBs and most Pro Micro shields. Developers needing more than 256 KB RAM or a different processor architecture should evaluate other platforms. Projects that cannot accommodate a 3.7 V lithium cell or that require a higher-voltage supply will need additional regulation.

64 MHz Cortex-M4F with 1 MB flash and 256 KB RAM

This single specification defines whether the board fits the firmware budget. The 64 MHz clock and 1 MB flash support moderately complex Bluetooth LE stacks, while 256 KB RAM limits the size of buffers and concurrent tasks. If the application exceeds these limits, a device with more memory is required.

特長

  • ARM Cortex-M4F at 64 MHz with 1 MB flash and 256 KB RAM
  • 7 V lithium interface and software LED switch drops standby to 1 mA
  • Pro Micro pinout makes it a drop-in replacement for almost any Pro Micro keyboard
  • Built-in ADC, PWM, SPI, I2C, UART, USB and GPIO for flexible peripheral support
  • Pack includes two NRF52840 boards ready for wireless Bluetooth projects

仕様

BrandAITRIP

この商品に関する質問

What pin spacing does the Pro Micro NRF52840 board use so it fits a standard Pro Micro keyboard PCB?

The pins match the Pro Micro layout, so the board drops into any keyboard designed for a Pro Micro footprint.

How do you enable the 1 mA standby mode on the NRF52840 development board?

Use the onboard software switch to cut power to the LED; the board then draws about 1 mA in standby.

When will the 3.7 V lithium battery connector on the NRF52840 board need replacement?

The JST‑style battery connector is rated for many insertion cycles; replace it only if the latch breaks or the contact becomes unreliable.

同じ売り場の商品

よく比較されている商品

同じ売り場、同じレジ — 8種類のコインと30分間のレートロック。