Bluetooth® Low Energy (LE) LED Behavior
Bluetooth® Low Energy (LE) Status LED 2 and LED 3
LED 2 is designated for indicating Bluetooth® connection status, not USB connection status.
When LED 2 is off, it indicates that the device is not currently connected via Bluetooth®. In most cases, this implies that the device has a Bluetooth® signal that is not connected, unless this has been intentionally disabled through configuration.
When LED 2 is on, it indicates that the device is currently connected via Bluetooth®. LED 3 is designated for indicating readiness for Bluetooth® message exchange.
When LED 3 is off, it indicates that the Bluetooth® connection is not yet ready. This could be due to the absence of a secure connection or the non-activation of device-to-host characteristic notifications.
When LED 3 is on, it indicates that the Bluetooth® connection is ready, signaling the establishment of a secure connection and the activation of device-to-host characteristic notifications.
Power On DynaFlex II Go in Battery Operating Mode
Press and hold the Power Button for two seconds: initially, LED 4 will light up, followed by all four LEDs illuminating for one second. This is followed by LEDs 1 and 2 remaining lit for 2 seconds, after which only LED 1 will be active.
Figure - Power On in Battery Operating Mode
Figure - LED Behavior for Bluetooth® Low Energy (LE) Ready State
If the host is within the Bluetooth® Low Energy (LE) connection range, all three LEDs (LED 1, 2, 3) will be illuminated, as described in Figure 7-8 - LED Behavior for Bluetooth® Low Energy (LE) Ready State.
Power Off DynaFlex II Go in Battery Operating Mode
DynaFlex II Go is capable of being powered off while in Battery Operating Mode only. To initiate the power-off sequence, press and hold the Power Button for two beeps then release. It's important to note that DynaFlex II Go cannot be powered off while connected via USB. If a two-beep sequence is initiated while connected to USB the device will reboot.
Figure - Power Off Device in Battery Operating Mode
DynaFlex II Go Bluetooth® Low Energy (LE) Host Pairing
DynaFlex II Go must first be paired with the host device before a secure Bluetooth® connection can be established. Follow the steps below to activate Bluetooth® pairing mode:
Press and Hold the Power Button for 4 beeps
Release the Power Button
LED 1 will remain steadily illuminated while LED 4 will begin to blink. When LED 4 is blinking it indicates the device is waiting to pair with the host. It will continue to blink for 3 minutes, waiting to pair with the host.
Figure - Activate BLE Pairing Mode
When the host is pairing with DynaFlex II GO, LED 4 will remain off and LED 2 will power on, indicating the pair is processing.
Figure - Bluetooth® LE Pair Processing
The device will return to Power On status if pairing Succeeds or Fails. LED 2 will power off and LED 1 will remain powered on.
Figure - Pairing Successful/Failed
DynaFlex II Go Bluetooth® Low Energy (LE) Host Connected
When the device establishes a connection to the host via BLE and is prepared for secure communication, all three LEDs (LED 1, 2, 3) will illuminate steadily.
Figure - BLE Connected to Host
DynaFlex II Go Bluetooth® Low Energy (LE) Host Disconnect
When the device is disconnected from the host Bluetooth® Low Energy (LE) connection, LED 3 will power off first and after 4 seconds, LED 2 will power off, LED 1 will remain powered on as the device returns to Ready State.
Figure 7-14 - Bluetooth® LE Disconnect LED Sequence
DynaFlex II Go Bluetooth® Low Energy (LE) Sleep Mode
When in Bluetooth® LE Sleep Mode, DynaFlex II Go will conserve battery life by limiting power to non-essential hardware features and entering low power mode. When in Sleep Mode, the device will appear to be powered off, with no LEDs illuminated, see Figure 7-15 – Bluetooth® (LE) Sleep Mode. For information on how to disable this feature, see D998200597 DynaFlex II Go Programmer’s Manual (COMMANDS).
Figure – Bluetooth® (LE) Sleep Mode
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