# Hardware **URL:** https://discourse.nodered.org/c/hardware/16.md?page=8 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 9 --- ## [Anyone looked at the Node-RED flows on the Velocity edge device?](https://discourse.nodered.org/t/anyone-looked-at-the-node-red-flows-on-the-velocity-edge-device/55237)
**Author:** [@SimonJ](https://discourse.nodered.org/u/SimonJ)\ **Replies:** 8\ **Last updated:** [16 December 2021 11:23 UTC](https://discourse.nodered.org/t/anyone-looked-at-the-node-red-flows-on-the-velocity-edge-device/55237 "2021-12-16T11:23:50Z")
This mobile edge computing device aggregates multiple connectivity types into Node-RED logic to provide robust solutions across various industries. --- ## [Using External bluetooth low energy dongle instead of internal bluetooth](https://discourse.nodered.org/t/using-external-bluetooth-low-energy-dongle-instead-of-internal-bluetooth/55278)
**Author:** [@JereLehtonen](https://discourse.nodered.org/u/JereLehtonen)\ **Replies:** 0\ **Last updated:** [16 December 2021 09:56 UTC](https://discourse.nodered.org/t/using-external-bluetooth-low-energy-dongle-instead-of-internal-bluetooth/55278 "2021-12-16T09:56:08Z")
Hello! Not quite sure if this is the right place to ask for help, but . I'm creating a project where I have raspberry pi 3b+ inside my house and my main goal is to connect to the raspberry pi outside of my house. Probl… --- ## [Wired ethernet relays](https://discourse.nodered.org/t/wired-ethernet-relays/54900)
**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\ **Replies:** 20\ **Last updated:** [15 December 2021 19:50 UTC](https://discourse.nodered.org/t/wired-ethernet-relays/54900 "2021-12-15T19:50:35Z")
Hi folks, Brands like Shelly have very nice WIFI switches (with MQTT support), which allow you to control 230V devices easily from Node-RED: I have some limitations regarding WIFI, so I was wondering if somebody has … --- ## [How to activate encryption for EnOcean?](https://discourse.nodered.org/t/how-to-activate-encryption-for-enocean/55234)
**Author:** [@ZinkerRocky](https://discourse.nodered.org/u/ZinkerRocky)\ **Replies:** 0\ **Last updated:** [15 December 2021 11:44 UTC](https://discourse.nodered.org/t/how-to-activate-encryption-for-enocean/55234 "2021-12-15T11:44:41Z")
Hello, I already searched for it, but I don’t find anything about how (or if it’s even possible) to use encryption for EnOcean devices. I use the USB 300 and the PTM 215 which allows to enable an encrypted mode. But I d… --- ## [Olimex Ltd. ESP32-GATEWAY](https://discourse.nodered.org/t/olimex-ltd-esp32-gateway/55115)
**Author:** [@Manu110](https://discourse.nodered.org/u/Manu110)\ **Replies:** 1\ **Last updated:** [13 December 2021 12:23 UTC](https://discourse.nodered.org/t/olimex-ltd-esp32-gateway/55115 "2021-12-13T12:23:48Z")
Hello. Do you know if the Olimex Ltd. ESP32-GATEWAY card can be integrated? Where can I find documentation? Thanks --- ## [Node-red serial comm palette failing to install](https://discourse.nodered.org/t/node-red-serial-comm-palette-failing-to-install/53516)
**Author:** [@kevinksdroid](https://discourse.nodered.org/u/kevinksdroid)\ **Replies:** 6\ **Last updated:** [10 December 2021 06:21 UTC](https://discourse.nodered.org/t/node-red-serial-comm-palette-failing-to-install/53516 "2021-12-10T06:21:41Z")
Hi, so I have been using the node-red-node-serialport for quite a while without any issue. I installed node-red using this method and followed the optional two steps for windows-build-tools. My version of nodejs is v12. … --- ## [Rbpi is showing wifi blocking on one of signal](https://discourse.nodered.org/t/rbpi-is-showing-wifi-blocking-on-one-of-signal/54811)
**Author:** [@aminulhaq](https://discourse.nodered.org/u/aminulhaq)\ **Replies:** 3\ **Last updated:** [7 December 2021 13:08 UTC](https://discourse.nodered.org/t/rbpi-is-showing-wifi-blocking-on-one-of-signal/54811 "2021-12-07T13:08:41Z")
hi, i am using rbpi and when i click on wifi icon it shows list of signal some are active and my coperate wifi is dim black and cant click on it kindly see reference for understanding, how to solve the problem Thanks … --- ## [I2c is not detectable on Rpi 400 or Rpi 4 but is with Rpi 3s](https://discourse.nodered.org/t/i2c-is-not-detectable-on-rpi-400-or-rpi-4-but-is-with-rpi-3s/54651)
**Author:** [@Loonhaunt](https://discourse.nodered.org/u/Loonhaunt)\ **Replies:** 9\ **Last updated:** [4 December 2021 06:46 UTC](https://discourse.nodered.org/t/i2c-is-not-detectable-on-rpi-400-or-rpi-4-but-is-with-rpi-3s/54651 "2021-12-04T06:46:29Z")
I is there some thing that I am missing? I am having a bugger of a time getting i2cdetect -y 1 to find anything on raspberry pi 4s or 400s Dave --- ## [Shelly sale on this weekend](https://discourse.nodered.org/t/shelly-sale-on-this-weekend/36583)
**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\ **Replies:** 3\ **Last updated:** [25 November 2021 21:33 UTC](https://discourse.nodered.org/t/shelly-sale-on-this-weekend/36583 "2021-11-25T21:33:48Z")
There has been a lot of talk in the forum recently about using Shelly switches, dimmers, etc, being controlled by node-RED, and just noticed that they have a sale this weekend with some great discounts. For example 2 x … --- ## [Installing big contrib node on a 256M old Pi](https://discourse.nodered.org/t/installing-big-contrib-node-on-a-256m-old-pi/54053)
**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\ **Replies:** 0\ **Last updated:** [21 November 2021 07:33 UTC](https://discourse.nodered.org/t/installing-big-contrib-node-on-a-256m-old-pi/54053 "2021-11-21T07:33:40Z")
I want to install node-red-contrib-tts-ultimate on an old Pi B (256M RAM total) and its failing/timing out I think this is due to memory constraint I had an idea to install it on a PiZero (same processor but 512M Ram) … --- ## [Updating old kit](https://discourse.nodered.org/t/updating-old-kit/52041)
**Author:** [@wb666greene](https://discourse.nodered.org/u/wb666greene)\ **Replies:** 9\ **Last updated:** [16 November 2021 18:37 UTC](https://discourse.nodered.org/t/updating-old-kit/52041 "2021-11-16T18:37:43Z")
@TotallyInformation At the risk of getting off-track with discussions of supporting "old kit" I've found Linux to add new life to old stuff quite nicely once you've climbed the learning curve. For example I turned an … --- ## [Read BH1750 Sensor](https://discourse.nodered.org/t/read-bh1750-sensor/3378)
**Author:** [@b35b5dad43ea282b65d0](https://discourse.nodered.org/u/b35b5dad43ea282b65d0)\ **Replies:** 16\ **Last updated:** [12 November 2021 18:18 UTC](https://discourse.nodered.org/t/read-bh1750-sensor/3378 "2021-11-12T18:18:49Z")
Hi You know a way how to read the sensor data from the BH1750 sensor? --- ## [Reliable IP Camera](https://discourse.nodered.org/t/reliable-ip-camera/53035)
**Author:** [@TheadehAnank](https://discourse.nodered.org/u/TheadehAnank)\ **Replies:** 2\ **Last updated:** [1 November 2021 19:13 UTC](https://discourse.nodered.org/t/reliable-ip-camera/53035 "2021-11-01T19:13:29Z")
Looking for any recommendations / experiences with integrating IP cameras (security cameras) with Node Red. I'm currently using a Hikvision camera with the Hikvision-ultimate node to trigger a flow on a Line Crossing ev… --- ## [AI hardware for camera stream processing](https://discourse.nodered.org/t/ai-hardware-for-camera-stream-processing/52248)
**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\ **Replies:** 25\ **Last updated:** [1 November 2021 14:45 UTC](https://discourse.nodered.org/t/ai-hardware-for-camera-stream-processing/52248 "2021-11-01T14:45:49Z")
Hi folks, There are some folks in this community that are very experienced with AI processing of camera images on external hardware: object detection, face recognition, ... For example our friend @wb666greene has alrea… --- ## [Stepper motor speed issues](https://discourse.nodered.org/t/stepper-motor-speed-issues/52132)
**Author:** [@Jay1234](https://discourse.nodered.org/u/Jay1234)\ **Replies:** 8\ **Last updated:** [31 October 2021 06:34 UTC](https://discourse.nodered.org/t/stepper-motor-speed-issues/52132 "2021-10-31T06:34:55Z")
I'm playing around with a 28BYJ stepper motor paired with a ULN2003 chip using a Raspberry Pi 3b using this flow Stepper Motor (flow) - Node-RED. There seems to be some sort of glass ceiling on the stepper motor speed -… --- ## [RPi Zero W v2 coming shortly](https://discourse.nodered.org/t/rpi-zero-w-v2-coming-shortly/52873)
**Author:** [@Bobo](https://discourse.nodered.org/u/Bobo)\ **Replies:** 5\ **Last updated:** [29 October 2021 11:13 UTC](https://discourse.nodered.org/t/rpi-zero-w-v2-coming-shortly/52873 "2021-10-29T11:13:41Z")
Happy Days. Looks like it will be good for video processing work, cams etc. :star\_struck: --- ## [Zigbee switch not working](https://discourse.nodered.org/t/zigbee-switch-not-working/52601)
**Author:** [@myhobby2](https://discourse.nodered.org/u/myhobby2)\ **Replies:** 24\ **Last updated:** [25 October 2021 18:02 UTC](https://discourse.nodered.org/t/zigbee-switch-not-working/52601 "2021-10-25T18:02:13Z")
Although I've read the post below, I still have a non working situation. https://discourse.nodered.org/t/howto-set-a-zigbee-switch/45227/2 I installed MQTTexplorer and this is what I see My goal is to have the s… --- ## [Wall mounted Node-RED touch screen device: Request for ideas and volunteers](https://discourse.nodered.org/t/wall-mounted-node-red-touch-screen-device-request-for-ideas-and-volunteers/51136)
**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\ **Replies:** 160\ **Last updated:** [17 October 2021 07:52 UTC](https://discourse.nodered.org/t/wall-mounted-node-red-touch-screen-device-request-for-ideas-and-volunteers/51136 "2021-10-17T07:52:41Z")
Hi folks, Winter is coming, which means my wife will ask again when I will have room temperature control ready: for example when she enters the bathroom at 07:00 in the morning, the room shouldn't be heated. I can't co… --- ## [I²C address with raspberry Pi Zero](https://discourse.nodered.org/t/i-c-address-with-raspberry-pi-zero/52058)
**Author:** [@Crashy77](https://discourse.nodered.org/u/Crashy77)\ **Replies:** 18\ **Last updated:** [16 October 2021 17:54 UTC](https://discourse.nodered.org/t/i-c-address-with-raspberry-pi-zero/52058 "2021-10-16T17:54:37Z")
Hi. I´m having the repeater and analogue card from Horter&Kalb, just for starting with I²C. I need the analogue output as setpoint 0-10V. Everything is running on a Pi Zero When I´m using "i2cdetect -y 1" in the tabl… --- ## [Can I control my MyQ devices via Node-RED?](https://discourse.nodered.org/t/can-i-control-my-myq-devices-via-node-red/50740)
**Author:** [@k5map](https://discourse.nodered.org/u/k5map)\ **Replies:** 13\ **Last updated:** [8 October 2021 14:08 UTC](https://discourse.nodered.org/t/can-i-control-my-myq-devices-via-node-red/50740 "2021-10-08T14:08:53Z")
I found a past topic by @rgerrans via this post but its unclear to me whether I can open/close my garage door or gate using this flow. Anyone using this flow who can answer this question? --- ## [Wired ESP32 (ethernet)](https://discourse.nodered.org/t/wired-esp32-ethernet/51811)
**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\ **Replies:** 1\ **Last updated:** [3 October 2021 21:50 UTC](https://discourse.nodered.org/t/wired-esp32-ethernet/51811 "2021-10-03T21:50:13Z")
Hi folks, While most people love to use wireless modules, I am quite the opposite of that. If I can install a wire (to avoid wireless troubles and batteries), then I will do it. That is why they call me the "cable guy… --- ## [How to modify an existing flow?](https://discourse.nodered.org/t/how-to-modify-an-existing-flow/51548)
**Author:** [@ChristophCaina](https://discourse.nodered.org/u/ChristophCaina)\ **Replies:** 8\ **Last updated:** [1 October 2021 17:40 UTC](https://discourse.nodered.org/t/how-to-modify-an-existing-flow/51548 "2021-10-01T17:40:30Z")
Hi all, I am using NodeRed within HomeAssistant... I am using a package "node-red-contrib-solaredge" which allows me to connect to the SolarEdge Monitoring API. This package / palette does include two commands: "Detai… --- ## [Stress Test - ECU and MYSQL](https://discourse.nodered.org/t/stress-test-ecu-and-mysql/51252)
**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\ **Replies:** 0\ **Last updated:** [19 September 2021 19:53 UTC](https://discourse.nodered.org/t/stress-test-ecu-and-mysql/51252 "2021-09-19T19:53:54Z")
Hi, I want to use Node-Red to stress test my ECU and the writing speed to my DB, a flow that wrights a few values to the DB So say wright to the DB a string "asdf123" and a time stamp for 10min every second and then s… --- ## [Email notification error](https://discourse.nodered.org/t/email-notification-error/50961)
**Author:** [@KrishnanRavichandran](https://discourse.nodered.org/u/KrishnanRavichandran)\ **Replies:** 10\ **Last updated:** [13 September 2021 16:00 UTC](https://discourse.nodered.org/t/email-notification-error/50961 "2021-09-13T16:00:21Z")
I am using an external hardware (Advantech ADAM 6717) from which I need emails to be sent based on the readings. But, when I try to test the email functionality via the Node red on the hardware, I am getting the followin… --- ## [What is good hardware based on your experience to run Node-RED?](https://discourse.nodered.org/t/what-is-good-hardware-based-on-your-experience-to-run-node-red/2963)
**Author:** [@janvda](https://discourse.nodered.org/u/janvda)\ **Replies:** 45\ **Last updated:** [9 September 2021 01:47 UTC](https://discourse.nodered.org/t/what-is-good-hardware-based-on-your-experience-to-run-node-red/2963 "2021-09-09T01:47:10Z")
Currently I am running Node-RED on 3 raspberry PIs (model B version 2). I am very pleased with the stability. Never had hardware issues that I couldn't fix. So is there other hardware that can be used to run Node-RED a… --- ## [Node-red Nextion display read serial](https://discourse.nodered.org/t/node-red-nextion-display-read-serial/19473)
**Author:** [@johnied21](https://discourse.nodered.org/u/johnied21)\ **Replies:** 4\ **Last updated:** [1 September 2021 19:56 UTC](https://discourse.nodered.org/t/node-red-nextion-display-read-serial/19473 "2021-09-01T19:56:40Z")
Hello, I have connected my Raspberry Pi 4 with a Nextion display, which is modified to have a text box and a button. I have successfully sent a message for the textbox to display(UNICODE is the only problem with that, … --- ## [Raspberry pi and Node-RED kwh meter pulse counting?](https://discourse.nodered.org/t/raspberry-pi-and-node-red-kwh-meter-pulse-counting/49789)
**Author:** [@TeemuJT](https://discourse.nodered.org/u/TeemuJT)\ **Replies:** 18\ **Last updated:** [25 August 2021 09:24 UTC](https://discourse.nodered.org/t/raspberry-pi-and-node-red-kwh-meter-pulse-counting/49789 "2021-08-25T09:24:58Z")
Hi, Any advice how to get Kwh-meter pulse data from GPIO to node-red? Im planning to use similar connection as this project: Engineer's Principles: Power meter logging with Pi and Emoncms (skding.blogspot.com) rpi - g… --- ## [Manage multiple audio channels](https://discourse.nodered.org/t/manage-multiple-audio-channels/49622)
**Author:** [@salamandreitor](https://discourse.nodered.org/u/salamandreitor)\ **Replies:** 13\ **Last updated:** [22 August 2021 21:40 UTC](https://discourse.nodered.org/t/manage-multiple-audio-channels/49622 "2021-08-22T21:40:53Z")
Hi all! We have just started in Node-Red and are currently creating a project play sound samples through the browser dashboard. Our equipment has an external sound interface installed (Gigaport HD +) that allows us to ha… --- ## [Interface Node-RED with arduino](https://discourse.nodered.org/t/interface-node-red-with-arduino/49795)
**Author:** [@RafaelMarquesRibeiro](https://discourse.nodered.org/u/RafaelMarquesRibeiro)\ **Replies:** 1\ **Last updated:** [16 August 2021 16:19 UTC](https://discourse.nodered.org/t/interface-node-red-with-arduino/49795 "2021-08-16T16:19:22Z")
Hello! Im developing a project in node-red that has the input of a numbpad. I'm now trying to test it with Arduino Uno and a keypad 4x4. I´ve tried StandartFirmata and tried to modify it to work with keypad but was unsu… --- ## [Making a Node-RED Project into hardware](https://discourse.nodered.org/t/making-a-node-red-project-into-hardware/49541)
**Author:** [@RafaelMarquesRibeiro](https://discourse.nodered.org/u/RafaelMarquesRibeiro)\ **Replies:** 1\ **Last updated:** [9 August 2021 18:46 UTC](https://discourse.nodered.org/t/making-a-node-red-project-into-hardware/49541 "2021-08-09T18:46:56Z")
Greetings! I'm a Mechanical Engineering student that is currently an intern in a company. I´ve self-proposed a project of a semi-automatic counter to replace the old pen and paper system that they are currently using. M… [Previous page](https://discourse.nodered.org/c/hardware/16.md?page=7) [Next page](https://discourse.nodered.org/c/hardware/16.md?page=9)