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Enable DC/DC for LR1110 radios - #3427

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ripplebiz merged 1 commit into
meshcore-dev:devfrom
Dom4n:feat/lr1110-dcdc-dev
Sep 22, 2026
Merged

ripplebiz merged 1 commit into
meshcore-dev:devfrom
Dom4n:feat/lr1110-dcdc-dev

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@Dom4n

@Dom4n Dom4n commented Sep 16, 2026

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RadioLib initializes LR1110 in LDO mode. This change enables DC/DC in the shared CustomLR1110::begin() method and propagates initialization errors.

Battery current measured by kng on a T1000-E repeater using the PowerSaving fork:

  • LDO: 12.67 mA
  • DC/DC: 8.38 mA — approximately 34% lower

Thanks to kng for suggesting this investigation and testing!

Builds pass for T1000-E repeater, T1000-E BLE companion, and ThinkNode M7 repeater. Companion mode and other boards have not been tested on hardware.

@IoTThinks

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Another friend and I have tested this PR on my T1000e as repeater, BLE companions and sensors.
All can reduce 4-5mA and work stably for 2 weeks.

@lbibass

lbibass commented Sep 20, 2026

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What's the deal with the additional code before enabling the DC-DC converter? just curious.

EDIT: please ignore me. I get it now.

@ripplebiz
ripplebiz merged commit 1401787 into meshcore-dev:dev Sep 22, 2026
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@IoTThinks

IoTThinks commented Sep 22, 2026

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Wow, great.
Thanks for the PR and the merge.

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4 participants