Operation Manual

12
3.4.4 Charging beacons and other details
The Beacon has 5 sensors (transducers) RX1, RX2, RX3, RX4, RX5
DIP switch modes:
1) Power = OFF, DFU = OFF: charging is possible; beacon is disconnected from
internal battery. This mode is recommended, if you want to keep the battery fully
charged for a long time and store the beacon on the shelf
2) Power = ON, DFU = OFF: normal working mode for beacon. The beacon is fully
powered and wakes up every a few seconds to monitor radio signal from the
modem. Power consumption is still minimal, if the beacon sleeps and the battery
can last for many weeks or months. It is recommended to keep the beacon in this
mode and to not touch the DIP switch at all, unless you want to store the beacon on
the shelf. Then, the mode 1) is better and recommended
3) Power = ON, DFU = ON: DFU programming mode. It is used for the very initial SW
uploading or when the HEX SW cannot be uploaded from the Dashboard for some
reasons
Charging is done
automatically every
time, when the USB
charger is attached to
the board. LED 1 is
active
It takes 1-2h to fully
charge the board’s
battery
If you plan using
charger for permanent
powering of the
beacon, make sure
that the power source
is not noisy (+5V is
not noisy). The
performance can be
monitored by
Dashboard => View
=> Oscilloscope, visit
oscilloscope
paragraph
When the board is
charged and turned
on LED 2 is blinking
every few seconds, if
to press reset and modem is active. If modem is not active or works on different radio
channel, the beacon automatically goes into a sleep mode in 1 minute