I cann't find the" master_emulator" written in the nRF51822 Evaluation Kit nRF51822 User Guide v1.2

[Vincent]

"Install the Master Control Panel and the nRF51822 Development Dongle (PCA10000)

1. Download and install the Master Control Panel from our website. Make sure to select the version that corresponds to your hardware.
2. Plug the Development Dongle into a USB port on your computer.
3. An icon will appear in the lower right corner of your monitor showing that the drivers are being installed. Wait until it is ready. Page 10 of 51 nRF51822 Evaluation Kit User Guide v1.2 Scan for available Bluetooth low energy devices
4. Start the Master Control Panel from the Windows Start menu (Start > All Programs > Nordic Semiconductor > Master Control Panel).
5. Make sure the Development Dongle is detected. The Master Emulator item list should show COMnn-xxxxxxxxx (nn gives the COM port number; xxxxxxxxx is the SEGGER serial number printed on the dongle). Restart the application if it doesn’t appear in the item list. Before continuing, make sure you have selected the correct device by verifying the serial number in the item list with the serial number printed on the Development Dongle.
6. When you use the Development Dongle for the first time, you must program it with the Master Emulator Firmware. a. In the Master Control Panel menu click File and select Flash Programming. b. Click Browse. This opens a browser that automatically points to the location of the mefw_ nrf51822__firmware.hex ( will be replaced by a number giving the version of the actual firmware). The Master Control Panel Firmware file is located in: \ARM\Device\Nordic\nrf51822\board\pca10000\ble\master_emulator c. Select the Master Emulator Firmware file and click Open. d. Click Program to start programming the selected device. e. When the programming is finished click Exit to go back to the main window.
7. Ensure that the Heart Rate Demo running on PCA10001 is advertising, indicated by LED 0 blinking.
8. Click Start discovery. The Development Dongle will scan for available Bluetooth low energy devices within range and list them.
9. Select the device CompleteLocalName ‘Nordic_HRM’ in the Discovered Devices list.
10. Click Select device.
11. Click Service Discovery. The Development Dongle will connect to the device and search for services and characteristics. In the Service discovery pane you will see the services and characteristics of the device. On PCA10001 LED0 will turn off.
12. Click Enable services. You should see the Heart Rate Measurement characteristic and Battery Level being notified every few seconds with a different value (the Heart Rate Measurement/ Battery Level value line will blink green for each notification).
13. Pressing BUTTON 0 or BUTTON 1 will make the Heart Rate Measurement value increase or decrease by two. "

I find that there are many description does not match the actual.

So, I want to know where to find master_emulator?

Note:

1. nRF51822 EK Version 2.0 2.nRF518-SDK V5.10

[Jay Tyzzer]

The Master Emulator is a piece of hardware (Dongle) There is a PC software / firmware package called "Master Control" panel. This is downloadable from the Nordic Website in either a 32bit or 62 bit version.

Note: There is also a APP called the same name for the Smart devices. They do similar things but one is for the PC and one is for the handhelds.

Jt.