Hello, for the purpose of my study I need to have the AudioMoths start at a specific date a couple of days after I place them. I understand that this will be implemented in a future update, but unfortunately I do not have the time to wait for that one. I'm therefore trying to hardcode the starting date into the firmware. I'm currently trying to make it so that when the default switch is triggered it will wait for the set date and then start recording. However, it just starts recording normally. I suspect it has something to do with the configured start date of the recorder (1970) but I'm not sure. If someone would point out where my code is going wrong I would greatly appreciate it! PS: when I try to flash the firmware it always crashes once, then I have to restart it in boot mode, after which it does work. Is there a fix for this? Here is my piece of code: if (switchPosition != *previousSwitchPosition) { if (switchPosition == AM_SWITCH_DEFAULT) { time_t current_time; struct tm * timeinfo; /* These are the values of my planned recording time */ int target_year = 2019, target_month = 12, target_day = 12; int target_hour = 14, target_minute = 50, target_second = 0; /* Get the current time */ time ( ¤t_time ); timeinfo = localtime(¤t_time); timeinfo->tm_year = target_year; timeinfo->tm_mon = target_month; timeinfo->tm_mday = target_day; timeinfo->tm_hour = target_hour; timeinfo->tm_min = target_minute; timeinfo->tm_sec = target_second; /*This converts it to something that difftime can work with */ time_t scheduled_time = mktime ( timeinfo ); *timeOfNextRecording = current_time + difftime(scheduled_time, current_time ); *durationOfNextRecording = 60; } else { /* Determine starting time and duration of next recording */ scheduleRecording(currentTime, timeOfNextRecording, durationOfNextRecording); } } Kind regards, Yannick
Search
Nov 3, 2018
hi,my audiomoths worked a few days after I set the programme.And recently I placed them on feild as usual without any change,they can't work
hi,my audiomoths worked a few days after I set the programme.And recently I placed them on feild as usual without any change,they can't work
16 comments
0
New Posts
- Is there any way getting the audiomoth in an automatic triggering status to record bats or even a specific bat species? I read about the British Bat project where part of that seemed to be the case. I would like use the automatic triggering to test battery life / find out about suitability for surveying bat migration in Special Protection Areas, where the device should be left alone during the breeding season as well as to compare the 'moth' with other devices used in the survey. Thanks, Patrick
- Hi, I've just received my audiomoth, but can't download the config app. I get the following response when clicking the download link: This site can’t provide a secure connection github-production-release-asset-2e65be.s3.amazonaws.com sent an invalid response. Can anyone look into this? Thanks
Hi, Can you describe in more detail the settings that you were using originally and what you mean when you say that they didn't work. Did the same thing occur on more than one device? Were there no recordings on the SD card?
The most likely reason is that the battery was dislodged or removed before deployment so the AudioMoth lost it's time setting or configuration. You should see that since when you switch to CUSTOM mode the two LED will flash together, rather than just the green LED telling you that it is waiting to make a recording.
the 2 time set:5:30-10:00,14:30-19:00.It worked well before. And it also worked at the first time after I reset it (when I found it's out of work).Then I placed them on the field without any change.they can't work.I checked everything before placed them. Yes,3 were all the same questions.
Hi, Did you set the time and the configuration again before you deployed them? If the battery had been removed they would have lost the time and configuration settings, and would not have made any recordings. Do they work correctly on your desk now?
Thank you for your reply.I did't set the time and the configuration again before I deployed them.Maybe battery is a question.I will try again.Thank you!
That’s almost certainly the problem them. The clock will also drift slightly over time so it’s always best to reset the time and configuration even if the batteries are left in.
When you switch to CUSTOM mode both LED will flash together if the time and configuration has not been set and no recording will take place.
if the time and configuration have been set you will see just the green LED flashing whilst the AudioMoth waits for the correct time to start recording.
But when I took back the audiomoths,they were all on only green flash.Does that mean the time and configuration has been set? But no recording in them.
Yes,I did.I tried again and again before.But they worked again yesterday!Are they unstable?I think so.
Are you sure you set the recording periods correctly to allow for the local time zone? All the times in the configuration app are UTC times. If they were working, then didn't work, and now work fine, I think there must have been something wrong with the configuration that was set. It's hard to imagine another failure mode that would cause what you observed.
I am sure.I set the same periods(UTC) as before that are not changed.The first week they worked well after I set .And they became unstable last two week.
See what happens the next few times. What weather conditions are they deployed in? We had one report of a couple of devices that got very hot in direct sun which caused them not to make any recordings. Apart from that they are generally reported to work as intended.
That is impossible.I deployed them in forest under 20.
Could they be getting wet? Are they deployed in plastic bags?
Yes.I put them in the plastic bags.
We used silica gel bags when there were big temperature changes to reduce condensation but I doubt this really makes much difference. We've not had any other reports of devices failing to make recordings so see if it happens again, and we can try to see if there is any pattern to it.
@AlexOk Rogers
Ok.Thank you for your attention.