Home › Forums › Mayfly Data Logger › Power usage of Mayfly1.1 with Hydros 21 cTD and LTE BEE cell modem › Reply To: Power usage of Mayfly1.1 with Hydros 21 cTD and LTE BEE cell modem
@rogers1313 gosh its all depends on the software you are using – what’s the version of software and the source. Since its open source software and hardware, and you can look at the software – its possible to guestimate those answers. Then since its software that causes the most power usage, it needs testing.
For a turnkey system, assembled off the shelf, those are reasonable questions to ask (and have tech support pay for).
For the solar being unavailable due to a storm – I use a target figure of two weeks.
I’m a fan of ModularSensors software and also a critic, with ways of solving the problems. I believe i’m one of the few people to publish the power usage I’ve got..
The Mayfly 1.1 is better at battery voltage measurement than the 0.5, but read some of my blogs on measuring battery voltage.
The standard release transmission software doesn’t have reliable message delivery built in, and the standard software is also IHMO really really really bad at managing power.
The simplest way of answering your question – build the system you want, delivering readings to MMW, put in a voltage measurement off the battery, and then let it run for 1week or 2 weeks and see how the voltage drops on the battery. If possible share the results here as well.
From my measurements, the biggest user of power is posting to MMW. MMW in my experience has a wide range of of how long it will take to respond, including no response. I default to a timeout of about 20seconds for a no response, but it can respond with successful POST ‘201’ in as little as 0.4Secs.
I have shared multiple postings of my power usage measurements, and what I’ve done to make the power usage more efficient – and in the end it depends on your application and how reliable you need it to be –
Just my 2cents.