Auto off function

G8WBO
Posts: 11
Joined: Thu Oct 24, 2024 3:06 pm

Auto off function

Post by G8WBO » Wed Nov 20, 2024 9:09 pm

Is there any auto off or standby function I can enable to save the battery being exhausted when I forget to turn the radio off ?

SP1RAC
Posts: 6
Joined: Sun Nov 17, 2024 10:59 am
Location: Koszalin, Poland

Re: Auto off function

Post by SP1RAC » Wed Nov 20, 2024 9:22 pm


KA1CM
Posts: 459
Joined: Tue Nov 28, 2023 4:14 pm

Re: Auto off function

Post by KA1CM » Wed Nov 20, 2024 9:25 pm

Two things I can think of.
1. Menu -> options -> general options-> Eco Level
This is how much time extra circuitry of the radio will go to sleep

https://github.com/LibreDMR/OpenGD77_Us ... #eco-level

2. Menu -> options -> general options-> APO/APO with RF

https://github.com/LibreDMR/OpenGD77_Us ... -power-off

VK3KYY
Posts: 8682
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: Auto off function

Post by VK3KYY » Wed Nov 20, 2024 11:43 pm

Be aware that the firmware can't completely turn the radio off, it can only turn off the display and the RF chips etc, and put the CPU into a lower power mode.

However the radio will still consume around 50mA

G8WBO
Posts: 11
Joined: Thu Oct 24, 2024 3:06 pm

Re: Auto off function

Post by G8WBO » Thu Nov 21, 2024 8:39 am

Thank you for that, thought I had read something in the manual, will have a look at the Eco settings

HA7AB
Posts: 1
Joined: Sat Mar 16, 2024 9:46 pm

Re: Auto off function

Post by HA7AB » Thu Jun 19, 2025 3:34 pm

Is there a way to implement APO if the battery level gets below a set value?
It would be nice to use the radio for automatic transmissions without user input, and make sure the battery doesn't fully die.

Example usecase:
Hiking in a remote area, radio is used for APRS TX with an APRS mode, that transmits location automatically. When the battery gets to 50%, the radio turns off, so it will be available for communcation later. It would be even better if the radio could do a series of actions once a battery has drained to a level: turn of GPS, select a different channel (without APRS or any auto transmission).

Is there anything like this on the roadmap @VK3KYY ?

VK3KYY
Posts: 8682
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia

Re: Auto off function

Post by VK3KYY » Thu Jun 19, 2025 8:53 pm

HA7AB wrote: ↑
Thu Jun 19, 2025 3:34 pm
Is there a way to implement APO if the battery level gets below a set value?
It would be nice to use the radio for automatic transmissions without user input, and make sure the battery doesn't fully die.

Example usecase:
Hiking in a remote area, radio is used for APRS TX with an APRS mode, that transmits location automatically. When the battery gets to 50%, the radio turns off, so it will be available for communcation later. It would be even better if the radio could do a series of actions once a battery has drained to a level: turn of GPS, select a different channel (without APRS or any auto transmission).

Is there anything like this on the roadmap @VK3KYY ?
These radios are not designed for your use case.

As I said previously, the firmware can't turn these radios completely off.

Even if we added a function to put the radio into standby at a specific battery level, the battery would continue to drain. This is especially true of the radios with colour screens.

If you need APRS and emergency communication, you should use two different radios