# \#d-bus **URL:** https://community.victronenergy.com/tag/d-bus/152.md [Latest](https://community.victronenergy.com/latest.md) · [Categories](https://community.victronenergy.com/categories.md) · [Tags](https://community.victronenergy.com/tags.md) --- ## [Feature request: D-Bus API in Venus OS for user-requested beeps](https://community.victronenergy.com/t/feature-request-d-bus-api-in-venus-os-for-user-requested-beeps/64490)
**Author:** [@toptaran](https://community.victronenergy.com/u/toptaran)\ **Replies:** 0\ **Last updated:** [28 October 2026 14:46 UTC](https://community.victronenergy.com/t/feature-request-d-bus-api-in-venus-os-for-user-requested-beeps/64490 "2026-10-28T14:46:17Z")
I tried to make my nucleo gx device to beep not only grid lost, but also when it return. I used node-red set 1 to com.victronenergy.system /Buzzer/State It beeps super small time like 15ms, even if you add loop for ten… --- ## [Maxxfan dbus-driver - dbus-maxxfan](https://community.victronenergy.com/t/maxxfan-dbus-driver-dbus-maxxfan/62338)
**Author:** [@TEX\_Lars](https://community.victronenergy.com/u/TEX_Lars)\ **Replies:** 2\ **Last updated:** [7 September 2026 08:57 UTC](https://community.victronenergy.com/t/maxxfan-dbus-driver-dbus-maxxfan/62338 "2026-09-07T08:57:49Z")
dbus-maxxfan — a MaxxFan Deluxe on the Venus OS switch pane, over infrared dbus-maxxfan — a MaxxFan Deluxe on the Venus OS switch pane, over infrared The MaxxAir MaxxFan Deluxe is in a lot of camper vans, and it h… --- ## [Venus OS driver for the Victron Buck-Boost DC-DC converter — no VE.Direct required](https://community.victronenergy.com/t/venus-os-driver-for-the-victron-buck-boost-dc-dc-converter-no-ve-direct-required/62040)
**Author:** [@TEX\_Lars](https://community.victronenergy.com/u/TEX_Lars)\ **Replies:** 1\ **Last updated:** [29 August 2026 16:16 UTC](https://community.victronenergy.com/t/venus-os-driver-for-the-victron-buck-boost-dc-dc-converter-no-ve-direct-required/62040 "2026-08-29T16:16:08Z")
Venus OS driver (GX DEVICE) for the Victron Buck-Boost DC-DC converter — no VE.Direct required The Buck-Boost 25 A / 50 A / 100 A is the odd one out in the Victron range: no VE.Direct, no Bluetooth, no GX integration. I… --- ## [Battery Monitor Control–can't select service path(Virtual Battery), existing nodes become uneditable](https://community.victronenergy.com/t/battery-monitor-control-cant-select-service-path-virtual-battery-existing-nodes-become-uneditable/53988)
**Author:** [@andrewd](https://community.victronenergy.com/u/andrewd)\ **Replies:** 12\ **Last updated:** [18 March 2026 10:20 UTC](https://community.victronenergy.com/t/battery-monitor-control-cant-select-service-path-virtual-battery-existing-nodes-become-uneditable/53988 "2026-03-18T10:20:32Z")
Hello, I am experiencing an issue with the Battery Monitor Control node (“blue” node) in Node-RED on a Cerbo GX. System Device: Cerbo GX Venus OS: 3.70. Problem Description Previously, I used the Battery Monito… --- ## [Control DVCC via Node Red?](https://community.victronenergy.com/t/control-dvcc-via-node-red/52191)
**Author:** [@Dieter\_P](https://community.victronenergy.com/u/Dieter_P)\ **Replies:** 3\ **Last updated:** [23 January 2026 17:34 UTC](https://community.victronenergy.com/t/control-dvcc-via-node-red/52191 "2026-01-23T17:34:08Z")
Hello I´m starting with Node Red and like to do load regulation which I have done before from external control by usage of Modbus. Therefore I like to control the DVCC settings and set Max Charge Voltage, but this seem… --- ## [Trouble Registering BLE GATT Characteristic on VenusOS using velib\_python](https://community.victronenergy.com/t/trouble-registering-ble-gatt-characteristic-on-venusos-using-velib-python/8563)
**Author:** [@xzv](https://community.victronenergy.com/u/xzv)\ **Replies:** 0\ **Last updated:** [22 October 2024 13:41 UTC](https://community.victronenergy.com/t/trouble-registering-ble-gatt-characteristic-on-venusos-using-velib-python/8563 "2024-10-22T13:41:33Z")
I’m trying to register a BLE GATT characteristic on a Victron controller running VenusOS using the velib\_python library. My goal: In the end, I would like to have a BLE Characteristic (to put it simply) that I can write…