We installed a Browning HP4 camera on the Fjalls base station pole to test it as a way of getting a long sequence of timelapse images. It has their solar panel fitted (small one half way up) – and is filled with lithium AA batteries.
The camera will take a couple of photos after sunrise and before sunset – it is very restrictive on timelapse unlike the Brinno cameras.
To see if a time-lapse camera would be useful in measuing rough lake depth changes we installed a Brinno again in 2022. It is set to take one photo every day at noon.
We have been doing more tests on the Swarm pico-sat coms with a view to using their system in Iceland.
This graph shows the temperature measurements during 6 days – showing the solar panel charging. On average the modem used 52mA but the battery was providing more like 120mA due to the LEDs and feather board.
In our mountainsensing project we showed that fully standard communications could cover large areas. For that project we had to add an 868MHz transceiver to our designs. This year we are doing a lot of development with the Atmel SAMR30 based system-on-chip as it includes a sub-GHz radio and has good support in the RIOT-OS. One important thing to test was the typical range to make sure it was similar to our roughly 1km with the previous CC1120. Here is a photo of a quick test in the New Forest which achieved 1km with this set of antennas:
we moved rover1 higher up and across the glacier – it was very far down the ice after a couple of years.
here is a page on our 2018 Iceland fieldwork
We just edited some footage of the fjallsjokull margin
Here you can see the recently exposed foreland and its moraines.
(video taken with 3DR Solo and GoPro5 – without gimbal – hence the slight wobble)