# Hardware

**URL:** https://discourse.nodered.org/c/hardware/16.md?page=1

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 2

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## [Clp siemens - node red](https://discourse.nodered.org/t/clp-siemens-node-red/97501)

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**Author:** [@WesleiRocha](https://discourse.nodered.org/u/WesleiRocha)\
**Replies:** 2\
**Last updated:** [9 June 2025 11:40 UTC](https://discourse.nodered.org/t/clp-siemens-node-red/97501 "2025-06-09T11:40:37Z")

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Estou tentando realizar a conexão entre o clp siemens e o node red, no entanto, está aparecendo essa seguinte frase: Error: PLC error \[0x8104\]: This service is not implemented on the module or a frame error was reported …

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## [Control a smart outlet using bluetooth?](https://discourse.nodered.org/t/control-a-smart-outlet-using-bluetooth/96572)

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**Author:** [@CandleTiger](https://discourse.nodered.org/u/CandleTiger)\
**Replies:** 7\
**Last updated:** [1 May 2025 18:13 UTC](https://discourse.nodered.org/t/control-a-smart-outlet-using-bluetooth/96572 "2025-05-01T18:13:41Z")

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I want to use Node-RED on my victron Cerbo GX to control a smart outlet (for a dump load when my batteries are full) Using hard-wired relays etc. is too much work in my case, I want to go with a remote controlled outlet…

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## [Advice on using mmWave board with Node-RED](https://discourse.nodered.org/t/advice-on-using-mmwave-board-with-node-red/96695)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 14\
**Last updated:** [22 April 2025 12:05 UTC](https://discourse.nodered.org/t/advice-on-using-mmwave-board-with-node-red/96695 "2025-04-22T12:05:49Z")

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Folks, sorry for dragging you into this. Human detector project. mmWave board: Scrolling down there is a PIGGY BACK board that give me/you BT for connection. I've never done any work with BT. So writing the code on…

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## [DMX-512 hardware](https://discourse.nodered.org/t/dmx-512-hardware/96090)

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**Author:** [@Hobbe](https://discourse.nodered.org/u/Hobbe)\
**Replies:** 1\
**Last updated:** [5 April 2025 23:57 UTC](https://discourse.nodered.org/t/dmx-512-hardware/96090 "2025-04-05T23:57:04Z")

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Hi, I wonder if anyone here has experience controlling DMX-512 fixtures from Node-RED? I am working on a project where the control system (Eurotherm PAC) does not handle the DMX-512 protocol, so my idea is to use Node-…

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## [Mikrotik API doesn't accept reply !empty](https://discourse.nodered.org/t/mikrotik-api-doesnt-accept-reply-empty/96297)

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**Author:** [@Dasinho7](https://discourse.nodered.org/u/Dasinho7)\
**Replies:** 4\
**Last updated:** [27 March 2025 14:34 UTC](https://discourse.nodered.org/t/mikrotik-api-doesnt-accept-reply-empty/96297 "2025-03-27T14:34:56Z")

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Hi, I've recently updated my router OS to 7.18 and since the update has been performed I'm running an issue on NodeRed where it breaks it when the reply doesn't have data to reply. I found the below on Mikrotik API doc…

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## [Olimex PIC-WEB Board](https://discourse.nodered.org/t/olimex-pic-web-board/96174)

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**Author:** [@wb9ixs](https://discourse.nodered.org/u/wb9ixs)\
**Replies:** 6\
**Last updated:** [24 March 2025 19:09 UTC](https://discourse.nodered.org/t/olimex-pic-web-board/96174 "2025-03-24T19:09:53Z")

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Hello Has anyone done any Node-red projects using the Olimex pic-web board. The MCU is a pic 18F67J60 a very powerful device. I did a Node-Red project with raspberry Pi for my one of my ham radios. So I have some experi…

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## [Read a 0-4mA sensor with a Shelly](https://discourse.nodered.org/t/read-a-0-4ma-sensor-with-a-shelly/96183)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 7\
**Last updated:** [24 March 2025 07:54 UTC](https://discourse.nodered.org/t/read-a-0-4ma-sensor-with-a-shelly/96183 "2025-03-24T07:54:05Z")

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Hi folks, I need help again from my electronics friends over here... In a desperate attempt to simplify my home automation setup, I have replaced all my electronics in the last 2 years by Shelly devices. I only need t…

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## [Unify Protect Activity to NodeRed](https://discourse.nodered.org/t/unify-protect-activity-to-nodered/95909)

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**Author:** [@ebnerjoh](https://discourse.nodered.org/u/ebnerjoh)\
**Replies:** 6\
**Last updated:** [11 March 2025 09:29 UTC](https://discourse.nodered.org/t/unify-protect-activity-to-nodered/95909 "2025-03-11T09:29:46Z")

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Hi, I have a Unifi Cloud Gateway MAX with an Unifi G5 Bullet Camera. Within Unifi I can get notifications if a human is recogniced. My idea is now to turn on a light in the carport, when a human is detected (and not ju…

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## [ESP8266 Unable to Connect to MQTT Broker (rc=-2)](https://discourse.nodered.org/t/esp8266-unable-to-connect-to-mqtt-broker-rc-2/95718)

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**Author:** [@Gowtham](https://discourse.nodered.org/u/Gowtham)\
**Replies:** 2\
**Last updated:** [1 March 2025 09:03 UTC](https://discourse.nodered.org/t/esp8266-unable-to-connect-to-mqtt-broker-rc-2/95718 "2025-03-01T09:03:23Z")

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Hello, I am trying to control an LED using ESP8266 via MQTT in Node-RED. The MQTT broker is running on my local machine, and the Node-RED debug node correctly shows the switch payload ("ON"/"OFF"). However, my ESP8266 f…

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## [Shelly wifi TRV - Discontinued](https://discourse.nodered.org/t/shelly-wifi-trv-discontinued/93980)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 17\
**Last updated:** [18 February 2025 22:47 UTC](https://discourse.nodered.org/t/shelly-wifi-trv-discontinued/93980 "2025-02-18T22:47:05Z")

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Hi folks, I am quite a big Shelly fan already a couple of years. So at the time being I shared in another discussion that Shelly started selling a TRV (Thermostatic Radiator Valve). And like all other Shelly devices, …

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## [Install Node Red On Secure Server](https://discourse.nodered.org/t/install-node-red-on-secure-server/94669)

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**Author:** [@VaibhavPokharkar](https://discourse.nodered.org/u/VaibhavPokharkar)\
**Replies:** 4\
**Last updated:** [16 January 2025 15:04 UTC](https://discourse.nodered.org/t/install-node-red-on-secure-server/94669 "2025-01-16T15:04:04Z")

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Hi, I am Trying To install Node Red on a our customer Server Where they have assigned us a Windows Server with full internet access using proxy from internet Browser. But When we are installing node red it downloads r…

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## [Control of Quinetic Switches](https://discourse.nodered.org/t/control-of-quinetic-switches/94377)

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**Author:** [@MakerMan](https://discourse.nodered.org/u/MakerMan)\
**Replies:** 2\
**Last updated:** [6 January 2025 22:07 UTC](https://discourse.nodered.org/t/control-of-quinetic-switches/94377 "2025-01-06T22:07:13Z")

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Have some of these Quinetic switches and looking at whether it's possible to do anything with them via NodeRed. I think the integration route would be via their WiFi Gateway and then possibly HomeBridge to NodeRed. Jus…

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## [Considering ESPhome](https://discourse.nodered.org/t/considering-esphome/94217)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 26\
**Last updated:** [31 December 2024 18:16 UTC](https://discourse.nodered.org/t/considering-esphome/94217 "2024-12-31T18:16:35Z")

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I hope people can offer some beginner level guidance about ESPhome. As I understand it, ESPHome is an alternative firmware for ESPs and Raspberry Picos? You have to compile it especially for each device and it's sensor…

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## [Hardware suggestion](https://discourse.nodered.org/t/hardware-suggestion/94172)

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**Author:** [@maxuser74](https://discourse.nodered.org/u/maxuser74)\
**Replies:** 20\
**Last updated:** [31 December 2024 17:51 UTC](https://discourse.nodered.org/t/hardware-suggestion/94172 "2024-12-31T17:51:41Z")

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Hello folks, I've been using NodeRed deployed on DigitalOcean server for years, pretty happy. It is now time to improve the performance of the unit, but DO alternatives to the basic ones are too expensive...so i though…

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## [Shelly outdoor plug arriving finally?](https://discourse.nodered.org/t/shelly-outdoor-plug-arriving-finally/93902)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 0\
**Last updated:** [14 December 2024 16:27 UTC](https://discourse.nodered.org/t/shelly-outdoor-plug-arriving-finally/93902 "2024-12-14T16:27:47Z")

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Hi folks, SPOILER ALERT! Last year I managed to switch most of my electronics stuff to a (nearly) fully Shelly-based setup. And I am very pleased with that. However one of the use cases where I am still stuck is the …

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## [Installing a Shelly pro 2](https://discourse.nodered.org/t/installing-a-shelly-pro-2/93762)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 17\
**Last updated:** [10 December 2024 22:44 UTC](https://discourse.nodered.org/t/installing-a-shelly-pro-2/93762 "2024-12-10T22:44:35Z")

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Hi folks, Years after years I am planning to control my outdoor Christmas lights with Node-RED. But never find time. This week it needs to happen. I have bought a Shelly Pro 2 switch, but I am doubting about two thin…

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## [Node-red + MCP23017 (x5) slowing down](https://discourse.nodered.org/t/node-red-mcp23017-x5-slowing-down/93165)

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**Author:** [@TadyTheFish](https://discourse.nodered.org/u/TadyTheFish)\
**Replies:** 52\
**Last updated:** [6 December 2024 20:15 UTC](https://discourse.nodered.org/t/node-red-mcp23017-x5-slowing-down/93165 "2024-12-06T20:15:46Z")

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Hey So I'm facing a problem with a project. I made a board with 5 MCP23017 expander ICs and everything works. The problem I'm facing is that after a day of running Node Red starts to slow down, I can see in HTOP that th…

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## [Node-Red OPC UA Client :- Read an Integer data from Siemens S7-1500 PLC using OPC UA](https://discourse.nodered.org/t/node-red-opc-ua-client-read-an-integer-data-from-siemens-s7-1500-plc-using-opc-ua/93729)

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**Author:** [@Akhil](https://discourse.nodered.org/u/Akhil)\
**Replies:** 0\
**Last updated:** [6 December 2024 10:12 UTC](https://discourse.nodered.org/t/node-red-opc-ua-client-read-an-integer-data-from-siemens-s7-1500-plc-using-opc-ua/93729 "2024-12-06T10:12:09Z")

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I was trying to create a setup with Siemens S7-1500 PLC as OPC UA Server and Node-Red as OPC UA Client. Created the Flow and deployed. Observed that there was no error and OPC-UA Client status was active reading. But …

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## [Detecting on/off status and actuating a switch with Node-RED](https://discourse.nodered.org/t/detecting-on-off-status-and-actuating-a-switch-with-node-red/93549)

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**Author:** [@HaroldPetersInskipp](https://discourse.nodered.org/u/HaroldPetersInskipp)\
**Replies:** 8\
**Last updated:** [29 November 2024 10:22 UTC](https://discourse.nodered.org/t/detecting-on-off-status-and-actuating-a-switch-with-node-red/93549 "2024-11-29T10:22:33Z")

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Any advice on how to go about detecting the status of this type of led-switch in a non-destructive or intrusive way to automate it with Node-RED?

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## [Updating NodeRed on pi Zero 2W](https://discourse.nodered.org/t/updating-nodered-on-pi-zero-2w/93544)

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**Author:** [@pinode](https://discourse.nodered.org/u/pinode)\
**Replies:** 8\
**Last updated:** [28 November 2024 21:03 UTC](https://discourse.nodered.org/t/updating-nodered-on-pi-zero-2w/93544 "2024-11-28T21:03:33Z")

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Can anyone advise me whether I can do a full update to the latest versions of NodeJS and NodeRed on a Raspberry Pi Zero 2W (arm7 quad core). I've read that current versions might not run on the zero but I suspect that th…

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## [Anyone using the Sonos SNZB-01P](https://discourse.nodered.org/t/anyone-using-the-sonos-snzb-01p/93407)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 7\
**Last updated:** [28 November 2024 14:14 UTC](https://discourse.nodered.org/t/anyone-using-the-sonos-snzb-01p/93407 "2024-11-28T14:14:29Z")

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..and if so - with what Zigbee hub/controller thingy? as I can't get mind to work with my Zigbee Echo Dot (it thinks its a light switch)

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## [Wireless M-Bus USB dongle problem](https://discourse.nodered.org/t/wireless-m-bus-usb-dongle-problem/89987)

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**Author:** [@werneroostendorp](https://discourse.nodered.org/u/werneroostendorp)\
**Replies:** 2\
**Last updated:** [25 November 2024 15:17 UTC](https://discourse.nodered.org/t/wireless-m-bus-usb-dongle-problem/89987 "2024-11-25T15:17:09Z")

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I have connected an IMST PA-iM871A Wireless M-Bus dongle to my PC (Windows). I have installed the drivers correctly because the provided software recognizes the USB stick. Now, I want to connect to an M-Bus device (a ga…

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## [Node red always restarts with this error message](https://discourse.nodered.org/t/node-red-always-restarts-with-this-error-message/93374)

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**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Replies:** 7\
**Last updated:** [24 November 2024 16:33 UTC](https://discourse.nodered.org/t/node-red-always-restarts-with-this-error-message/93374 "2024-11-24T16:33:38Z")

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nodered.service: Main process exited, code=killed, status=6/ABRT nodered.service: Failed with result 'signal'. How can I fix it? Runing on rpi 4 64 bit

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## [Thoughts on backing off room thermostat when 10c or 5c or 0c outside](https://discourse.nodered.org/t/thoughts-on-backing-off-room-thermostat-when-10c-or-5c-or-0c-outside/93066)

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**Author:** [@questuk](https://discourse.nodered.org/u/questuk)\
**Replies:** 12\
**Last updated:** [12 November 2024 14:34 UTC](https://discourse.nodered.org/t/thoughts-on-backing-off-room-thermostat-when-10c-or-5c-or-0c-outside/93066 "2024-11-12T14:34:59Z")

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Hi, I have coded my own Arduino thermostat that is controlled by Node-RED and I can set it to various temperature 21c to 24c in .5c increments. I have noticed that at the the moment it is 10c outside and the room heatin…

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## [TRVZ thermostats](https://discourse.nodered.org/t/trvz-thermostats/92383)

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**Author:** [@martonpeter1](https://discourse.nodered.org/u/martonpeter1)\
**Replies:** 20\
**Last updated:** [30 October 2024 11:54 UTC](https://discourse.nodered.org/t/trvz-thermostats/92383 "2024-10-30T11:54:52Z")

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Hi! Im using TRVZ thermostats, Im able to get lots of parameters except the state of thermostats. It is ON or it is OFF. Any idea to solve? BR Peter

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## [Shelly Pro 3 - feedback on off](https://discourse.nodered.org/t/shelly-pro-3-feedback-on-off/92682)

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**Author:** [@DonRoberto](https://discourse.nodered.org/u/DonRoberto)\
**Replies:** 3\
**Last updated:** [26 October 2024 20:00 UTC](https://discourse.nodered.org/t/shelly-pro-3-feedback-on-off/92682 "2024-10-26T20:00:16Z")

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Hello, (first picture on bottom) i try to get feedback from "Shelly Pro 3" with the debug node it work 'msg.status.switch:0.output'. (first picture on top) But with the change not it don´t work, get no result T…

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## [Is it possible to install nodered on an Apple TV 4K?](https://discourse.nodered.org/t/is-it-possible-to-install-nodered-on-an-apple-tv-4k/92277)

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**Author:** [@Lumy88](https://discourse.nodered.org/u/Lumy88)\
**Replies:** 2\
**Last updated:** [11 October 2024 01:11 UTC](https://discourse.nodered.org/t/is-it-possible-to-install-nodered-on-an-apple-tv-4k/92277 "2024-10-11T01:11:01Z")

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Hello everyone, I'm wondering if it is possible to install nodered on an Apple TV 4K?

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## [Read battery status](https://discourse.nodered.org/t/read-battery-status/89953)

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**Author:** [@Kralle](https://discourse.nodered.org/u/Kralle)\
**Replies:** 3\
**Last updated:** [6 August 2024 11:00 UTC](https://discourse.nodered.org/t/read-battery-status/89953 "2024-08-06T11:00:05Z")

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Hello, I use the Dragino CPL03-LB with the code recommended by the manufacturer (see below) in the data that arrives in Node Red I can't find any data for the battery status. For other sensors I find the value batV. Tha…

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## [Trying to automate my gate opener](https://discourse.nodered.org/t/trying-to-automate-my-gate-opener/89928)

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**Author:** [@Sirhc](https://discourse.nodered.org/u/Sirhc)\
**Replies:** 5\
**Last updated:** [1 August 2024 12:54 UTC](https://discourse.nodered.org/t/trying-to-automate-my-gate-opener/89928 "2024-08-01T12:54:04Z")

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Hi all I have a centys d5 evo gate opener and I’m trying to remotely open/close and also get open/close status back to my home automation system. Manual location here In the manual it appears as if the trigger input…

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## [Node-red on Pi not showing the Serial USBs](https://discourse.nodered.org/t/node-red-on-pi-not-showing-the-serial-usbs/88945)

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**Author:** [@Hayder](https://discourse.nodered.org/u/Hayder)\
**Replies:** 10\
**Last updated:** [11 July 2024 21:39 UTC](https://discourse.nodered.org/t/node-red-on-pi-not-showing-the-serial-usbs/88945 "2024-07-11T21:39:07Z")

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Hello; I am new to raspi, and I have a problem getting data from my Arduino board, which is connected via USB to the Pi. I used to connect the Arduino to a Nod-red installed on a PC, and it works very well. I have got t…

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