Mark, in the thread with Patrick Stein I measured the GPS antenna at ~ 5 mA / 55 mW, and added that info to https://docs.openvehicles.com/en/latest/userguide/warnings.html#average-powe...
*GPS*consumption includes the active GPS antenna, which accounts for ~ 5 mA / 55 mW. Antenna power cannot be switched by the module.
ESP32*deep sleep mode*(e.g. triggered by the power management module) reduces the consumption to ~ 15 mA / 165 mW with the active GPS antenna attached, or ~ 10 mA / 110 mW with the GPS antenna detached. The hardware isn’t capable to go any lower than this.
But maybe you can do a more precise measurement, I only have some basic electronics tools here. Regards, Michael Am 31.01.23 um 01:53 schrieb Mark Webb-Johnson:
Re: https://www.openvehicles.com/node/3545
I think it worthwhile having this discussion here. Synopsis seems to be:
1. Our modem design uses the SIMCOM reference design to power the active GPS antenna from VBAT. This increases power consumption (powering the active antenna), even if the GPS is turned off in software.
2. There is an alternative approach using pin 44 and the AT+CVAUXV / AT+CVAUXS commands to enable/disable and/or adjust voltage.
Would be interesting to see the exact power readings and impact this change would make. I will try to get these this weekend.
Regards, Mark
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