💬 AM612 Passive Infrared Sensor Breakout Board
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@waspie said in 💬 AM612 Passive Infrared Sensor Breakout Board:
for what its worth IIRC i'm getting at least 6 months on the ol' 612 with a CR2450.
Close to two years on a CR123a. So yeah, if I made more I'd design a new board for the new PIR sensors you're finding out there but the 612 even with its higher dropout voltage seems to work fine with even a moderatly sized battery.Unless the actual current drain is larger than the 14ua I'm assuming, it sounds as though the other drains on your battery are what's dominating. So, if my calculations are right, you likely wouldn't get more than a small percentage more battery life out of using the 3ua sensor instead of the AM612.
@NeverDie said in 💬 AM612 Passive Infrared Sensor Breakout Board:
@waspie said in 💬 AM612 Passive Infrared Sensor Breakout Board:
for what its worth IIRC i'm getting at least 6 months on the ol' 612 with a CR2450.
Close to two years on a CR123a. So yeah, if I made more I'd design a new board for the new PIR sensors you're finding out there but the 612 even with its higher dropout voltage seems to work fine with even a moderatly sized battery.Unless the actual current drain is larger than the 14ua I'm assuming, it sounds as though the other drains on your battery are what's dominating. So, if my calculations are right, you likely wouldn't get more than a small percentage more battery life out of using the 3ua sensor instead of the AM612.
I'm using mostly 328p with edbyte radios with a resting current (no PIR) of like lets say 5-7ua? I haven't tested it in forever. with 2 years of battery on a 123 it just didnt seem worth the trouble worrying about any of it. and thanks for your designs that got me off the ground with that stuff btw.
after the fix for the 51822 and 832 i put together a few of those and those are using the cr2450. i think those rest at like 4.5ua (minus the pir of course). 6+ months on a button cell is quite all right with me.
