6 ms·
Just a battery would be the simplest option. Just measure time until empty. If you want higher time resolution, there are several fully integrated hall effect
by oddlama 4y ago
Just a battery would be the simplest option. Just measure time until empty.
If you want higher time resolution, there are several fully integrated hall effect current measurement ICs out there, like for example the ACS723.
If you need even better accuracy or resolution and you can spare 100 bucks, just buy one of the Nordic Power Profiler Kits.
- ilyt 4y agoThat is the way. Once you get into actual measurement there is plenty of hard problems, like your device might only wake up for 10ms, take few hundred mAs of current and go to sleep.