Timeline for Arduino minimal power usage
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 9, 2017 at 14:49 | history | edited | per1234 | CC BY-SA 3.0 | Fix typos |
| Mar 13, 2016 at 9:35 | vote | accept | Arthur | ||
| Mar 12, 2016 at 3:48 | comment | added | Nick Gammon♦ | So PIC is 70nA in sleep - well I won't quibble over 30 nA, which is all the difference is. It's hard to measure that anyway. as Microchip has purchased Atmel - uh oh. | |
| Mar 12, 2016 at 1:55 | comment | added | Gee Bee | Nevertheless, as Microchip has purchased Atmel, they're one family now! Time to develop the GRAND microcontroller now :) | |
| Mar 12, 2016 at 1:53 | comment | added | Gee Bee | Interesting! I have no experience in low powering the Atmega328P, so I did some digging of datasheets. ATMega328p 3V 4MHz = 1.7mA 5V 8MHz = 5.2mA PIC18LF1xK50 3V 4MHz = 0.5mA 5V 24MHz = 4.7mA Atmega power down mode, WDT disabled, 3V = 0.1uA power down mode, WDT enablede, 3V = 4.2uA, PIC power down, WDT disabled, 3V 0.07uA power down, WDT enabled, 3V 1.37uA max. Doh, this formatting! So PIC is 70nA in sleep, and even if it runs with PLL at 24MHz, consumes less than a 8MHz Atmega328P. Of course we're comparing apples to oranges because of different architecture of the cpus. | |
| Mar 12, 2016 at 1:38 | comment | added | Nick Gammon♦ | The off-the-shelf Arduinos are not suitable, because they have voltage regulators, power LEDs, etc. However the processor (Atmega328P) can sleep at 100 nA (with the watchdog disabled). I'm not sure the PICs are much better. 100 nA is pretty low, batteries discharge faster than that. | |
| Mar 12, 2016 at 1:29 | history | answered | Gee Bee | CC BY-SA 3.0 |