LED Light Status Indicators and Calibration Mode

The three LED lights (green, red, and blue) on the interface board of a Wavelet V2™ and Wavelet Ex™ provide indications of the device's status. The Wavelet 4R™ has one LED light (green).

Table of Contents

Viewing the Indicator LEDs

LED Status Indications for Wavelet 4R

LEDs Status Indications

Accessing the Interface Board LEDs

Calibration Mode

Viewing the Indicator LEDs

In the device, a round window on the back enables you to see the three indicator LEDs (green, red, and blue). View the LED status through that window. 

If you have an early version of a Wavelet 3™ or Wavelet 4™ device that has no window, you need to open the enclosure (as described in Accessing the Interface Board LEDs) to view LED indications.

Location of round window – Wavelet sealed	Location of LEDs – Wavelet opened

Location of round window – Wavelet 4R sealed	Location of LEDs – Wavelet 4R opened

LED Status Indications for Wavelet 4R

The following table lists the LED light status for devices manufactured after October, 2021.

LED Status Indications for All Other Devices

LEDs Status	Interpretation	Relevant for Wavelet version	Visual Indication
All LED are off	Not connected to network. The LED lights do not blink when the device is sampling.  Note: Wavelet may be powered down (power switch is in the OFF position), in Hibernate mode, or have insufficient battery power. Hibernate mode puts the device into an ultra-low power mode. The device will neither take samples nor transmit data.	All versions
Green LED is blinking	Attempting to connect to network.	All versions
Green LED remains on	Transmission of data is in progress; the LED will turn off when transmission is complete.	All versions
Green and Red LEDs blink five times	Communication error. The device failed to transmit.	All versions
Red and Blue LEDs blink sequentially for an hour	Wavelet has entered Hibernate mode. The red and blue LEDs blink sequentially during the first hour in Hibernate mode. Hibernate mode puts the device into an ultra-low power mode. The device will neither take samples nor transmit data.	All versions
Green-Red-Blue-Red-Green LEDs blink sequentially five times	Wavelet is activated by swiping the Magnetic Activator key over the embossed logo on the face of the device. Next, the Wavelet calibration activity starts, in which the Wavelet samples and transmits frequently.	All versions
Green, Red, Blue LEDs blink five times	The bootloader starts up when the device powers up. Power-up  is typically followed by a firmware boot sequence.	All versions
Green and Blue LEDs blink twice, then Red	Firmware is booting.	All versions
Blue LED is blinking	Bootloader is active, not connected to the network.	All versions
	If the Wavelet has an additional LPWAN board, the blinking blue LED indicates the Wavelet is attempting to connect to the LoRa network.	LoRa-enhanced Wavelet
Blue and Green LEDs are blinking	Bootloader is active, trying to connect to network.	All versions
Blue LED  is  blinking, Green LED is constantly ON	Bootloader is active, upgrading firmware.	All versions
Red LED blinks three sequences of three  short blinks each	Battery charge was just measured and is low (battery charge is measured after each transmission and each sensor sampling). Replace the battery pack.	Wavelet, Firmware version 2.239 and newer
Red LED blinks for one minute	Battery voltage is too low to perform data transmission. If the battery is not empty, and the transmission/ sampling frequency is not too high, the voltage will eventually rise and data will be transmitted.	Wavelet 4, version 2.239 and newer

Blue LED remains on	Transmission of data over LoRa is in progress; the LED will turn off when transmission is complete.	LoRa-enhanced Wavelet
Blue and Red LEDs blink five times	LoRa communication error. The device failed to transmit.	LoRa-enhanced Wavelet

Accessing the Interface Board LEDs

To access the Wavelet's interface board LEDs:

Partially unscrew the six (6) screws located on the back of the Wavelet enclosure, until you can lift off the back panel.

Note: The Wavelet 4R device has only a green LED.

The other devices have three LEDs (COMM, ERROR, and STAT) that are on the interface board, as shown in the figure below. The COMM LED is green, the ERROR LED is red, and the STAT LED is blue.

Calibration Mode

Calibration mode is the state of the device during its boot up. While in Calibration mode, no changes are made to the device’s configuration. 

A device goes into Calibration mode when you do any of the following actions: 

• The Reboot command is generated by the FAI Pro/FAI Local platform when some commands are sent. Additionally, a “Reboot” command can be sent from the AyyekaGo mobile app.  

For example, this command is sent automatically when a device’s configuration is changed. 

• You swipe the magnet over the embossed logo on the front of the device.  

For example, you swipe the magnet if you want to force an immediate transmission of sample data rather than wait for the next scheduled transmission. 

• You perform a manual reboot by turning the ON/OFF switch found on the top PCB board of the device to the OFF position, and then later turning it to the ON position.  

For example, you turn the ON/OFF switch when changing the device’s desiccants or battery. 

Calibration mode affects the following device functions: 

• Transmission – During calibration, the device does not transmit at its regular transmission rate. Instead, the device transmits more frequently (every 1-3 minutes) for the next 10-15 minutes. 

• Data Sampling – During calibration, the device does not sample at its regular sampling interval rate (as defined in ADVANCED DEVICE CONFIGURATION  >  SampleGroup > GROUP > # > group_sample_interval_calib).  
   

• Bluetooth® - By default, Bluetooth is not enabled in order to conserve the battery. In  Calibration mode, Bluetooth is enabled as long as the device is in Calibration mode (10-15 minutes) or as long as the device is connected to the mobile app.