# Hardware

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

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**Page:** 17

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## [Failing in install open-cv on a REVPI (possible reason is space)](https://discourse.nodered.org/t/failing-in-install-open-cv-on-a-revpi-possible-reason-is-space/6927)

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**Author:** [@vongomben](https://discourse.nodered.org/u/vongomben)\
**Replies:** 2\
**Last updated:** [29 January 2019 15:10 UTC](https://discourse.nodered.org/t/failing-in-install-open-cv-on-a-revpi-possible-reason-is-space/6927 "2019-01-29T15:10:56Z")

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Hi Node-red Forums. I'm working on a RevPI (which is basicalli a Pi, since it's based on its Compute Module) and wanted to use Open-CV- This is a post on the steps I did, jump to the end for the possible main reason fo…

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## [Sonoff alternative](https://discourse.nodered.org/t/sonoff-alternative/6552)

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**Author:** [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Replies:** 0\
**Last updated:** [8 January 2019 12:48 UTC](https://discourse.nodered.org/t/sonoff-alternative/6552 "2019-01-08T12:48:15Z")

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In my search for Sonoff alternatives I have found the following: https://shelly.cloud/shelly1-open-source/ The Shelly 1 looks very interesting as it may fit in existing sockets. It has MQTT support and a well documente…

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## [Node-red stops responding on raspberry pi](https://discourse.nodered.org/t/node-red-stops-responding-on-raspberry-pi/6063)

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**Author:** [@yawstick](https://discourse.nodered.org/u/yawstick)\
**Replies:** 3\
**Last updated:** [22 December 2018 13:00 UTC](https://discourse.nodered.org/t/node-red-stops-responding-on-raspberry-pi/6063 "2018-12-22T13:00:30Z")

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I had node-red running for a couple of weeks on raspberry pi and had been working very well. I was modifying some sample nodes that I found online when the it became unresponsive. Its possible I did something that create…

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## [Amazon Echo Spot](https://discourse.nodered.org/t/amazon-echo-spot/3919)

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**Author:** [@mpxd](https://discourse.nodered.org/u/mpxd)\
**Replies:** 3\
**Last updated:** [14 December 2018 06:13 UTC](https://discourse.nodered.org/t/amazon-echo-spot/3919 "2018-12-14T06:13:23Z")

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Can someone confirm that discovering local devices does not work with the Echo Spot? I tried alexa-local and alexa-home-skill - the setup works but the Spot does not discover my devices. I saw that the alexa-local docu…

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## [Support for Wifi TI SensorTag (CC3200)](https://discourse.nodered.org/t/support-for-wifi-ti-sensortag-cc3200/3218)

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**Author:** [@uuuuu5uu](https://discourse.nodered.org/u/uuuuu5uu)\
**Replies:** 1\
**Last updated:** [17 September 2018 15:15 UTC](https://discourse.nodered.org/t/support-for-wifi-ti-sensortag-cc3200/3218 "2018-09-17T15:15:45Z")

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Does anyone know if it is possible to receive and transmit data from the WiFi SensorTag from Texas Instruments? I would like to send it forward via HTTP or MQTT. Thanks Balint

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## [Barcode scan 28 alphanumeric characters](https://discourse.nodered.org/t/barcode-scan-28-alphanumeric-characters/3190)

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**Author:** [@marcojass](https://discourse.nodered.org/u/marcojass)\
**Replies:** 8\
**Last updated:** [16 September 2018 22:12 UTC](https://discourse.nodered.org/t/barcode-scan-28-alphanumeric-characters/3190 "2018-09-16T22:12:32Z")

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Hi guys I use a barcode scanner into a beaglbeone with node-red , specially usb-hid contrib node. It function perfectly apart for 2 cases: a 28 digit lenght barcode alphanumeric barcode Can you helo me to solve that…

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