Quelltext der Seite WSAL10649 – Core51822 (B)/en

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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

== Summary ==
The Core51822 (B) is a small-factor core board built around the nRF51822 multiprotocol BLE/2.4 GHz RF SoC for ultra-low-power wireless applications.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL10649 WSAL10649 – Bluetooth 4.0 NRF51822 Core Board, Small Factor]

== Technical overview ==
* The nRF51822 SoC supports Bluetooth 4.0 Low Energy and 2.4 GHz RF features.
* The companion BLE400 mother board provides a battery holder, multiple power-supply options, accessible I/Os, an integrated CP2102 debugger, LEDs and user keys.
* The evaluation kit consists of the BLE400 mother board and the Core51822 wireless module.
* Recommended PC environment: Windows XP or Windows 7; nRFgo Studio v1.14 or later; Keil MDK-ARM Lite v4.54 or later; J-Link Software v4.52b or later.
* For programming, install the nRF51 SDK; if installation errors occur, Microsoft .NET Framework 3.5 may be required.
* blinky_example runs without an OS and executes directly after download; the LED visibly blinks.
* ble_app_hrs additionally requires the S110 SoftDevice (Bluetooth protocol stack), e.g. s110_nrf51822_6.0.0_softdevice.hex.
* For mobile connectivity, use nRFToolbox (Android) or nRF Utility (iOS); the app displays received data only after 19 characters are received.

'''Commands and examples – verify before use:''' 
<syntaxhighlight lang="text">
Send 'Y' or 'y' over serial to start broadcasting (LED0 lights up).
Serial settings: baud rate 38400, 8 data bits, 1 stop bit.
nRFgo Studio: select 'nRF51 Programming' > 'Erase all' before programming.
Keil: open blinky.uvproj, press F7 to build, then click Download.
For ble_app_hrs: nRFgo Studio > 'Program SoftDevice' > Browse (choose s110_nrf51822_6.0.0_softdevice.hex) > Program.
</syntaxhighlight>

== Notes and version constraints ==
* J-Link firmware may fail to cooperate with the Nordic SDK; in that case use nRFgo Studio &gt; 'Program Application'.
* Initial output from the factory program is for self-test and can be ignored.
* The mobile device must support Bluetooth 4.0 and have the appropriate app installed to detect the signal.
* Compatibility with other boards and availability of specific firmware versions should be verified beforehand.

== Source and revision record ==
* [https://www.waveshare.com/wiki/Core51822_(B) Core51822 (B) - Waveshare Wiki]
* Source revision: 70262
* Captured: 2026-08-30T02:35:33+00:00
* SHA-256: <code>fa2cdafbac077d82e66bb2012dde8f73700cdb399818d671600e7182db146eb6</code>