Module 3.3: Measuring Battery Status

Hi everyone, 

As you're aware, Module 3 has turned into a bit of a monster. To get all the information to you in a digestable format, we've broken it into six submodules which will each have their own page and discussion thread to manage questions that come up. Please use this thread to drop in all your questions about Module 3.3: Measuring Battery Status. 

Our new course directory will also help you navigate through all our the course content. 

Stay tuned for our updated module release schedule and plans for live events. Our events are going to take a different format going forward, likely picking up key discussions and challenges we're seeing pop up in the forum. We'll let you know more in coming days. 

Happy building! 

Steph 




Hi,

I like the Wildlogger and I am thinking of using it as a basis for some dataloggers that can record different variables inside caves. My idea would be to feed them with Lipo 1s batteries, and my question is what power range do these devices support?
Regards,

Hi Akiba,
Oh, your answer is great!
My idea is to build a DL that allows,

  • Light registration, with time stamp, when it exceeds a certain threshold (To control the human presence in the cave) The card only has to record when this threshold is exceeded to save energy
  • Periodic record of temperature and humidity
  • Data recording on SD
  • Autonomy of at least 4 months

I have tried some sensors and I think I will use the TSL2591 because it has a very low detection threshold (0.18 uLux) and has an interrupt pin. I've already been testing some sample libraries, and I think it would be ideal
For temperature and humidity I am hesitating between using the DHT11 or the BME280
Perfect the external reference of the ADC if it serves to have more accurate readings
My idea is to use a power bank with 3 or 4 18650 Lipo batteries and built-in BCP, and to be able to disconnect the device when it detects that the power supply is less than 3.2V
Is the Sandisk card you mention a normal one, or of an industrial type like the one you presented in the corresponding module?
My best wishes,