Jack Douglas asked 4 years ago
As esp32-based projects become more complex which rely on a battery power source, it is necessary to predict and measure the current draw of the system. How can this be accomplished, and can it be sent by LoRa as an output?
Sara Santos Staff answered 4 years ago
Hi Jack.
I’ve found this article that allows you to predict how long the batteries will last: https://www.geekstips.com/battery-life-calculator-sleep-mode/
I also found this video very useful: https://youtu.be/8NDq6hC9KJo
What do you mean by sending it by LoRa as an output? Do you want to send the current battery status via LoRa?
Regards,
Sara
Jack Douglas answered 4 years ago
Is there a means via hw/sw to send via lora the current used by the entire board?
Sara Santos Staff answered 4 years ago
Hi.
I think you can use a module like the IN219 to measure current consumption. It seems simple to use. However, I don’t have one to experiment with.
Here’s the documentation on adafruit: https://learn.adafruit.com/adafruit-ina219-current-sensor-breakout/overview
I hope this helps.
Regards,
Sara