# Hardware

**URL:** https://discourse.nodered.org/c/hardware/16.md?page=13

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

**Page:** 14

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## [Raspberry Pi Zero W: wow](https://discourse.nodered.org/t/raspberry-pi-zero-w-wow/26663)

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**Author:** [@Surefire01](https://discourse.nodered.org/u/Surefire01)\
**Replies:** 0\
**Last updated:** [14 May 2020 15:23 UTC](https://discourse.nodered.org/t/raspberry-pi-zero-w-wow/26663 "2020-05-14T15:23:39Z")

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More of an observation than a question really so here we go. From the first week of Covid-19 lock down I decided to increase my knowledge of all things IOT and have a go at automating my home heating system. I purchased…

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## [\[off topic\] Need advice getting started with D1/ESP/PI type "thing" projects](https://discourse.nodered.org/t/off-topic-need-advice-getting-started-with-d1-esp-pi-type-thing-projects/23408)

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**Author:** [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Replies:** 49\
**Last updated:** [13 May 2020 19:52 UTC](https://discourse.nodered.org/t/off-topic-need-advice-getting-started-with-d1-esp-pi-type-thing-projects/23408 "2020-05-13T19:52:53Z")

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Hi all, Firstly, sorry about the off topic post but I know there are some wonderfly helpful guys on here with experience on this stuff. I am looking to get into the whole Wemos ESP Pi-zero area of building "things". I…

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## [HMI interfacing options supported by Node-Red](https://discourse.nodered.org/t/hmi-interfacing-options-supported-by-node-red/26357)

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**Author:** [@mizer666](https://discourse.nodered.org/u/mizer666)\
**Replies:** 1\
**Last updated:** [10 May 2020 11:53 UTC](https://discourse.nodered.org/t/hmi-interfacing-options-supported-by-node-red/26357 "2020-05-10T11:53:04Z")

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Hi All, i'm looking for some simple interfacing options between device and a user. At the moment my workaround is to use LCD/TFT displays with X and headless chrome on RPI that displays dashboard to the user but i'm lo…

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## [Ads1115 with zmpt101b converter](https://discourse.nodered.org/t/ads1115-with-zmpt101b-converter/26368)

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**Author:** [@Tods09](https://discourse.nodered.org/u/Tods09)\
**Replies:** 1\
**Last updated:** [9 May 2020 12:34 UTC](https://discourse.nodered.org/t/ads1115-with-zmpt101b-converter/26368 "2020-05-09T12:34:11Z")

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Hello. Does anybody know how to configure my Ads1115 node which is conected to zmpt101b converter (with this I convert voltage 220V) to read corectly the values of voltage (220V)? I used a debug node and it gave me ran…

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## [Cannot access raspberry pi with static ip](https://discourse.nodered.org/t/cannot-access-raspberry-pi-with-static-ip/26220)

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**Author:** [@RednodeNewbie](https://discourse.nodered.org/u/RednodeNewbie)\
**Replies:** 43\
**Last updated:** [8 May 2020 12:21 UTC](https://discourse.nodered.org/t/cannot-access-raspberry-pi-with-static-ip/26220 "2020-05-08T12:21:44Z")

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Hello everyone, I am newbie on this platform I am sorry if I am in a wrong place to ask this. I have a raspberry pi server that node red is running on and a client/arduino. I set static ip in raspberry I wrote only ipv4 …

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## [Wiring a smoke detector](https://discourse.nodered.org/t/wiring-a-smoke-detector/4735)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 86\
**Last updated:** [5 May 2020 14:31 UTC](https://discourse.nodered.org/t/wiring-a-smoke-detector/4735 "2020-05-05T14:31:03Z")

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Hi guys, Spend a lot of time the last year in developing contributions for Node-RED, but the wife gently reminded me it is time to start wiring instead of developing. And for the first time in our marriage I have to ad…

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## [Raspberry Pi 4+](https://discourse.nodered.org/t/raspberry-pi-4/16075)

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**Author:** [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Replies:** 132\
**Last updated:** [2 May 2020 20:39 UTC](https://discourse.nodered.org/t/raspberry-pi-4/16075 "2020-05-02T20:39:27Z")

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Don't know if this topic is appropriate here, but here goes... Just received a 'shiny new' Raspberry Pi 4+ and must say it is VERRRRRRRYYYYY fast. The special HDMI cable was out of stock so I set the Pi up in 'headless…

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## [Error: Permission denied, cannot open /dev/ttyr0](https://discourse.nodered.org/t/error-permission-denied-cannot-open-dev-ttyr0/25148)

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**Author:** [@maccoa](https://discourse.nodered.org/u/maccoa)\
**Replies:** 4\
**Last updated:** [2 May 2020 14:56 UTC](https://discourse.nodered.org/t/error-permission-denied-cannot-open-dev-ttyr0/25148 "2020-05-02T14:56:49Z")

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Hello everyone I try to communicate via rs232 over tcp / ip. I installed the NPort 5110 drivers (1-port RS-232 serial device server) but in node I don't have the rights. in a terminal I try to understand why. ls -l …

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## [SOLVED: ELRO AB400 power switch 433 MHz // RFXtrx](https://discourse.nodered.org/t/solved-elro-ab400-power-switch-433-mhz-rfxtrx/25821)

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**Author:** [@duaw](https://discourse.nodered.org/u/duaw)\
**Replies:** 0\
**Last updated:** [30 April 2020 15:08 UTC](https://discourse.nodered.org/t/solved-elro-ab400-power-switch-433-mhz-rfxtrx/25821 "2020-04-30T15:08:04Z")

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Hi guys, I have an ELRO AB440S switch, 433 MHz, not exactly new anymore, but similar types seem still to be very common. They are cheap. On the device you set a "System Code" and a "Unit-Code" via 10 DIP switches. Mine…

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## [Suggested (hobby grade) hardware architecture for process monitoring/mgmt (e.g. lots control i/o)](https://discourse.nodered.org/t/suggested-hobby-grade-hardware-architecture-for-process-monitoring-mgmt-e-g-lots-control-i-o/25372)

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**Author:** [@jcims](https://discourse.nodered.org/u/jcims)\
**Replies:** 20\
**Last updated:** [29 April 2020 20:18 UTC](https://discourse.nodered.org/t/suggested-hobby-grade-hardware-architecture-for-process-monitoring-mgmt-e-g-lots-control-i-o/25372 "2020-04-29T20:18:10Z")

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Hi folks. I'm tinkering with a process that will require a reasonable number of hardware integration points (temp/pressure/current). I've had very encouraging results with using node red on a Raspberry Pi to orchestrat…

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## [RaspberryPI with Xbee](https://discourse.nodered.org/t/raspberrypi-with-xbee/25260)

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**Author:** [@Martin10](https://discourse.nodered.org/u/Martin10)\
**Replies:** 0\
**Last updated:** [21 April 2020 19:10 UTC](https://discourse.nodered.org/t/raspberrypi-with-xbee/25260 "2020-04-21T19:10:31Z")

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Hi, how can we connect RPI with Xbee modules via USB? I have Xstick, Wall router, and other xbee devices. After the connections, i want to make some network configurations. Is there node-red library, that can obtain data…

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## [Audio via speaker out](https://discourse.nodered.org/t/audio-via-speaker-out/24915)

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**Author:** [@BigWillow](https://discourse.nodered.org/u/BigWillow)\
**Replies:** 6\
**Last updated:** [21 April 2020 08:31 UTC](https://discourse.nodered.org/t/audio-via-speaker-out/24915 "2020-04-21T08:31:17Z")

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Hi all Having far more trouble than expected trying to install anything to simply play anything out the 3.5mm socket on a pi4 (it will take triggers from a remote MQTT server & just be a trigger to audio converter). I …

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## [LightwaveRF Smart Dimmer control](https://discourse.nodered.org/t/lightwaverf-smart-dimmer-control/24632)

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**Author:** [@Brew](https://discourse.nodered.org/u/Brew)\
**Replies:** 7\
**Last updated:** [19 April 2020 20:42 UTC](https://discourse.nodered.org/t/lightwaverf-smart-dimmer-control/24632 "2020-04-19T20:42:56Z")

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Has anyone had any success with integrating LightwaveRF devices into Node-Red? My apologies if this has been covered elsewhere and I've just missed it, equally please forgive me if the solution is blatantly obvious and …

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## [Node-Red Sensors](https://discourse.nodered.org/t/node-red-sensors/2938)

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**Author:** [@b35b5dad43ea282b65d0](https://discourse.nodered.org/u/b35b5dad43ea282b65d0)\
**Replies:** 34\
**Last updated:** [19 April 2020 19:12 UTC](https://discourse.nodered.org/t/node-red-sensors/2938 "2020-04-19T19:12:56Z")

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Hello I have a question about reading Sensor datas with Node-Red and the Raspberry Pi. I watched some Youtube Videos, and the most of them have the Grove Pi addition to connect there Sensors. Now i want to ask if i ne…

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## [USB Sensors library ?](https://discourse.nodered.org/t/usb-sensors-library/24952)

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**Author:** [@Martin10](https://discourse.nodered.org/u/Martin10)\
**Replies:** 42\
**Last updated:** [19 April 2020 17:20 UTC](https://discourse.nodered.org/t/usb-sensors-library/24952 "2020-04-19T17:20:58Z")

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How can i connect usb sensors to node red? Is there some library?

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## [Beagle Board Black beaglebone-io module](https://discourse.nodered.org/t/beagle-board-black-beaglebone-io-module/24831)

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**Author:** [@Nic](https://discourse.nodered.org/u/Nic)\
**Replies:** 2\
**Last updated:** [15 April 2020 14:31 UTC](https://discourse.nodered.org/t/beagle-board-black-beaglebone-io-module/24831 "2020-04-15T14:31:38Z")

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Hi all, I am a new user either with beagleboard black and node-red. I tried to move the first steps using the gpio nodes (thank you dceejay for your support) but a beaglebone-io module is needed. Tried to install using …

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## [Connection lost in Raspberry PI Zero W](https://discourse.nodered.org/t/connection-lost-in-raspberry-pi-zero-w/24307)

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**Author:** [@XiaoBin](https://discourse.nodered.org/u/XiaoBin)\
**Replies:** 16\
**Last updated:** [7 April 2020 19:57 UTC](https://discourse.nodered.org/t/connection-lost-in-raspberry-pi-zero-w/24307 "2020-04-07T19:57:18Z")

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Hello Guys I am working on large node-red project in Raspberry PI Zero W. That project contains over 1900 nodes and MQTT communication with C application. But I see connection lost almost of time. Also I have many 't…

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## [Box for Shelly 1](https://discourse.nodered.org/t/box-for-shelly-1/24157)

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**Author:** [@cflurin](https://discourse.nodered.org/u/cflurin)\
**Replies:** 12\
**Last updated:** [3 April 2020 16:58 UTC](https://discourse.nodered.org/t/box-for-shelly-1/24157 "2020-04-03T16:58:23Z")

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Hi, I have designed a 3D box for Shelly 1: If you are interested, I can upload the STL-files to Thingiverse.

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## [Fan Raspberry Pi 4](https://discourse.nodered.org/t/fan-raspberry-pi-4/24057)

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**Author:** [@ezequiel\_barros](https://discourse.nodered.org/u/ezequiel_barros)\
**Replies:** 18\
**Last updated:** [3 April 2020 00:21 UTC](https://discourse.nodered.org/t/fan-raspberry-pi-4/24057 "2020-04-03T00:21:52Z")

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Good night folks can you tell me if there is any way to identify via command if the raspberry 4 cooler is on?

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## [Getting started with ESP8266 - first project - need help please](https://discourse.nodered.org/t/getting-started-with-esp8266-first-project-need-help-please/23636)

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**Author:** [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Replies:** 10\
**Last updated:** [25 March 2020 21:55 UTC](https://discourse.nodered.org/t/getting-started-with-esp8266-first-project-need-help-please/23636 "2020-03-25T21:55:53Z")

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\[EDIT\]... While I totaly get this topic isnt 100% node-red, I hope you all don't mind me kicking it off / discussing it here. I find this vibrant forum to be one the best I've ever used. And ultimately, I will share f…

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## [ESP Tasmota + IR Sensor](https://discourse.nodered.org/t/esp-tasmota-ir-sensor/23218)

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**Author:** [@pedroware](https://discourse.nodered.org/u/pedroware)\
**Replies:** 19\
**Last updated:** [20 March 2020 18:39 UTC](https://discourse.nodered.org/t/esp-tasmota-ir-sensor/23218 "2020-03-20T18:39:38Z")

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Hi, I request help from Portugal. I made a protection with an ESP w / Tasmota + IR Sensor. to do some functions with the TV control in the room, like turning off the light in the room ... But I am not able to integ…

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## [Nora google, ikea tradfri lamp](https://discourse.nodered.org/t/nora-google-ikea-tradfri-lamp/22956)

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**Author:** [@sniperxnl](https://discourse.nodered.org/u/sniperxnl)\
**Replies:** 28\
**Last updated:** [14 March 2020 13:39 UTC](https://discourse.nodered.org/t/nora-google-ikea-tradfri-lamp/22956 "2020-03-14T13:39:28Z")

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Hi Guys I have a Ikea tradfri lamp that i control with Nora and google for ON and OFF When i want to control the brightness the problem starts This is how the flow now looks like \[{"id":"ddfed62f.093d68","type":"nora…

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## [Adding a USB serial port, getting started](https://discourse.nodered.org/t/adding-a-usb-serial-port-getting-started/22497)

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**Author:** [@BigWillow](https://discourse.nodered.org/u/BigWillow)\
**Replies:** 7\
**Last updated:** [11 March 2020 08:48 UTC](https://discourse.nodered.org/t/adding-a-usb-serial-port-getting-started/22497 "2020-03-11T08:48:45Z")

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Hi all. I would like to use the RS232 nodes on Node Red (to control a projector). I am a PC user, and when I add an USB\>RS232 adaptor, Windows scoots off and finds the drivers. So, being new to the Pi, does it need dr…

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## [DHT12 i2c ir one wire use](https://discourse.nodered.org/t/dht12-i2c-ir-one-wire-use/22707)

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**Author:** [@nahuavrilero](https://discourse.nodered.org/u/nahuavrilero)\
**Replies:** 11\
**Last updated:** [9 March 2020 14:19 UTC](https://discourse.nodered.org/t/dht12-i2c-ir-one-wire-use/22707 "2020-03-09T14:19:53Z")

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Hey there. I'm trying to use Aosong DHT12 sensor. This sensor can be used with i2c and one wire connections. I've tried one wire with DHT11/22 node but couldn't make it work. I tried i2c too, but didn't work neither. …

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## [Connection YAMAHA WXAD-10](https://discourse.nodered.org/t/connection-yamaha-wxad-10/22811)

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**Author:** [@Miko7](https://discourse.nodered.org/u/Miko7)\
**Replies:** 0\
**Last updated:** [8 March 2020 19:12 UTC](https://discourse.nodered.org/t/connection-yamaha-wxad-10/22811 "2020-03-08T19:12:18Z")

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I can't connect to YAMAHA Musiccast. I have HTR-4068 receiver and works well on port 8080. I can't connect the other device WXAD-10. The problem will be on the port. Don't know how to connect your device? Thanks.

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## [How to control gpio pins of Arduino with internet](https://discourse.nodered.org/t/how-to-control-gpio-pins-of-arduino-with-internet/22592)

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**Author:** [@iotdevv](https://discourse.nodered.org/u/iotdevv)\
**Replies:** 11\
**Last updated:** [6 March 2020 09:11 UTC](https://discourse.nodered.org/t/how-to-control-gpio-pins-of-arduino-with-internet/22592 "2020-03-06T09:11:04Z")

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i want to connect to internet with Sim800L and control gpio pins of Arduino. i searched a lot and found there is a way by using serial connection using Firmata and Arduino Nodes palette, but this way doesn't work when y…

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## [\[solved!\]DHT11's stopped working on Pi3b](https://discourse.nodered.org/t/solved-dht11s-stopped-working-on-pi3b/8310)

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**Author:** [@JonHeron](https://discourse.nodered.org/u/JonHeron)\
**Replies:** 14\
**Last updated:** [5 March 2020 14:04 UTC](https://discourse.nodered.org/t/solved-dht11s-stopped-working-on-pi3b/8310 "2020-03-05T14:04:36Z")

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Raspian with the latest updates and kernel. Pi3B+ I have been running a pi out in the greenhouse since last spring and I just noticed the temp/humidity DHT11 sensor stopped working. I am using node-red with the node-re…

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## [Atorch UD18 USB tester protocol and integration with node-red](https://discourse.nodered.org/t/atorch-ud18-usb-tester-protocol-and-integration-with-node-red/22460)

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**Author:** [@msillano](https://discourse.nodered.org/u/msillano)\
**Replies:** 3\
**Last updated:** [2 March 2020 08:57 UTC](https://discourse.nodered.org/t/atorch-ud18-usb-tester-protocol-and-integration-with-node-red/22460 "2020-03-02T08:57:50Z")

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This low price device (13.88 €) is more than just a digital USB tester (see ATORCH UD18: https://it.aliexpress.com/item/4000001021645.html or https://www.banggood.com/UD18-USB3\_0DCType-C-18-in-1-USB-Tester-APP-DC-Digital…

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## [1GB Raspberry pi 4 axed](https://discourse.nodered.org/t/1gb-raspberry-pi-4-axed/22318)

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**Author:** [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Replies:** 19\
**Last updated:** [28 February 2020 11:28 UTC](https://discourse.nodered.org/t/1gb-raspberry-pi-4-axed/22318 "2020-02-28T11:28:09Z")

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Good news! The 1GB pi will not be on sale any more, the 2GB model will cost the same!

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## [Cheap water level sensor](https://discourse.nodered.org/t/cheap-water-level-sensor/22060)

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**Author:** [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Replies:** 4\
**Last updated:** [23 February 2020 15:47 UTC](https://discourse.nodered.org/t/cheap-water-level-sensor/22060 "2020-02-23T15:47:49Z")

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I had a water leak in our airing cupboard cold water header tank a few weeks ago. The ballcock valve was leaking and whoever installed the tank had put the overflow pipe HIGHER than the inlet pipe, not a real problem but…

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