2026/04/19/release-1-15-0

[giscus[bot]]

2026/04/19/release-1-15-0

What's new in release v1.15.0

https://blog.meshcore.io/2026/04/19/release-1-15-0

[Gyzmok]

For the Heltec v4.3 : 'Radio rxgain now ON by default'. Is there a CLI command to set it OFF again? I have a noise floor of -83 dB now (was -116) . The command 'set radio.fem.rxgain off' does not work anymore. This nice command was introduced in the PowerSaving14.1.1 Firmware from here : https://github.com/IoTThinks/EasySkyMesh/releases/tag/PowerSaving14.1

[lbibass]

are you referring to the rxgain or the LNA? you do have control over the rxgain with set radio.rxgain.

The PR to control the LNA has not been merged yet. meshcore-dev/MeshCore#2140

you should continue to use the powersaving firmware if you want that feature.

[Gyzmok]

Yes, the Heltec v4.3 has 2 rxgains. Apparantly this v1.15.0 Release puts both of them 'ON'. I can control the internal LNA with 'set radio.rxgain'. But the external 'FEM' LNA stays 'ON'. The 'set radio.fem.rxgain off'command does not work in this Release. I had the best RX results with the internal LNA 'ON' and the external LNA 'OFF'. Reverted back to the powersaving firmware 14.1 and the Heltec v4.3 'works' again.

[zaycev]

I wish one of the PRs adding MuziWorks Duo support were merged. Maybe next time?

• Add MuziWorks Base Duo board support (nRF52840 + LR1121) 🤖🤖 MeshCore#2198
• Muzi Base Duo Support MeshCore#2054

[gatman45]

hello gps and bme280 work ?

[brettammerman-oss]

I updated 2 RAK 4631 devices to 1.15 from 1.14 and both no longer show Bluetooth lite lit, nor do they allow connections. I downgraded to previous versions and still no luck. Any help would be very helpful.

[ErikLachance]

For the Heltec v4.3 TFT (TOUCH) The buzzer is not functioning. The battery charges via USB, but there is no indication when it reaches full charge. The noise floor is high.

[tkocou]

I tried to access the GPS 'switch' in a Thinknode M1. The app declared that I needed version 1.16 of the companion firmware. The flasher only shows version 1.15. Okay, when will the flasher get updated from the April19th 2026 version to the latest?

[svalkaer]

I have flashed a new Wisblock Starter Kit with 1W booster, and i am not able to configure the Companion node with 30dBm TX power. The highest value i can configure is 22dBm. Shouldn't this be possible? I have also added a GPS module to it, and using this module does not seem to be support either, or i am doing something wrong?