# General **URL:** https://discourse.nodered.org/c/general/7.md?page=898 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 899 --- ## [Tempertature automation](https://discourse.nodered.org/t/tempertature-automation/9829)
**Author:** [@ihebabidi](https://discourse.nodered.org/u/ihebabidi)\ **Replies:** 5\ **Last updated:** [7 April 2019 12:26 UTC](https://discourse.nodered.org/t/tempertature-automation/9829 "2019-04-07T12:26:55Z")
hello all ! im using the ACKP sensor to mesure the temperature, wich is plugged in a sensorprobe2. the device sensorprobe2 has a default web interface wich allows me to see the value of the temperature, but i want to g… --- ## [Installing new nodes, problems doing in and problems with what I have written down as THE way to do it](https://discourse.nodered.org/t/installing-new-nodes-problems-doing-in-and-problems-with-what-i-have-written-down-as-the-way-to-do-it/9844)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 31\ **Last updated:** [7 April 2019 12:21 UTC](https://discourse.nodered.org/t/installing-new-nodes-problems-doing-in-and-problems-with-what-i-have-written-down-as-the-way-to-do-it/9844 "2019-04-07T12:21:26Z")
Hi folks. (A bit long I know. But I want as many cards on the table to quickly resolve the problem, rather than umpteen posts to and fro before the real problem is found/identified.) I really hope this is not time was… --- ## [SOS,How to control a node by code (add node,update node,delete node)](https://discourse.nodered.org/t/sos-how-to-control-a-node-by-code-add-node-update-node-delete-node/9849)
**Author:** [@qgc007](https://discourse.nodered.org/u/qgc007)\ **Replies:** 4\ **Last updated:** [7 April 2019 08:20 UTC](https://discourse.nodered.org/t/sos-how-to-control-a-node-by-code-add-node-update-node-delete-node/9849 "2019-04-07T08:20:34Z")
help me！ I\`m learning red-node recently, i want to know hao to control node and flow by using code (add,delete,update) --- ## [Satble or LTS NR versions](https://discourse.nodered.org/t/satble-or-lts-nr-versions/9843)
**Author:** [@kenkoknz](https://discourse.nodered.org/u/kenkoknz)\ **Replies:** 3\ **Last updated:** [6 April 2019 22:29 UTC](https://discourse.nodered.org/t/satble-or-lts-nr-versions/9843 "2019-04-06T22:29:26Z")
Hi, I am now too up to date with the latest NR version and is currently on 0.19.4, and very happy with it as everything works for me in my case. With the new 0.20 release, and scanning the forum recently, there seems to… --- ## [Convert 24 hour format to a 12 hour format](https://discourse.nodered.org/t/convert-24-hour-format-to-a-12-hour-format/9823)
**Author:** [@Aalian](https://discourse.nodered.org/u/Aalian)\ **Replies:** 4\ **Last updated:** [6 April 2019 15:23 UTC](https://discourse.nodered.org/t/convert-24-hour-format-to-a-12-hour-format/9823 "2019-04-06T15:23:17Z")
Hello, I want to turn 24-hour format to 12-hour format. My flow goes like this. there is an interval that runs my flow at 1:00 am and makes a request to an API where it gives it some payload. the payload is formatted lik… --- ## [RBE not “working” as I thought](https://discourse.nodered.org/t/rbe-not-working-as-i-thought/9828)
**Author:** [@mambui](https://discourse.nodered.org/u/mambui)\ **Replies:** 3\ **Last updated:** [6 April 2019 12:09 UTC](https://discourse.nodered.org/t/rbe-not-working-as-i-thought/9828 "2019-04-06T12:09:54Z")
Hi guys, I am quite confuse with the RBE function. My flow works with standardized buy/sell information from twitter. Before using the RBE function, my flow was working well. A buy info sends a buy order. A sell info … --- ## [Interfacing Arduino with NodeRed on RaspberryPi](https://discourse.nodered.org/t/interfacing-arduino-with-nodered-on-raspberrypi/9782)
**Author:** [@TMcLean](https://discourse.nodered.org/u/TMcLean)\ **Replies:** 6\ **Last updated:** [6 April 2019 11:21 UTC](https://discourse.nodered.org/t/interfacing-arduino-with-nodered-on-raspberrypi/9782 "2019-04-06T11:21:05Z")
Hello, Im just diving into Node-RED and im currently working on a project that involves me to display a PSI sensor data from an arduino onto a raspberry pi running node-red. I have uploaded the standardfirmata sketch to… --- ## [How to draw graphics in OLED easily?](https://discourse.nodered.org/t/how-to-draw-graphics-in-oled-easily/9809)
**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\ **Replies:** 3\ **Last updated:** [5 April 2019 16:57 UTC](https://discourse.nodered.org/t/how-to-draw-graphics-in-oled-easily/9809 "2019-04-05T16:57:41Z")
Hi i m newbie How do i draw complex images like below easily? I use this node https://flows.nodered.org/node/node-red-contrib-oled Thank you --- ## [How do I start with the correct flow from SSH?](https://discourse.nodered.org/t/how-do-i-start-with-the-correct-flow-from-ssh/9776)
**Author:** [@Mastiff](https://discourse.nodered.org/u/Mastiff)\ **Replies:** 17\ **Last updated:** [5 April 2019 14:20 UTC](https://discourse.nodered.org/t/how-do-i-start-with-the-correct-flow-from-ssh/9776 "2019-04-05T14:20:46Z")
I am updating my reliability system, which up to now has been using Home Assistant to restart Node-RED when the events stop coming into the receiving end of the MQTT system, but it has had two misfires in the last two mo… --- ## [How can I create a default property like array?](https://discourse.nodered.org/t/how-can-i-create-a-default-property-like-array/9718)
**Author:** [@trujillo](https://discourse.nodered.org/u/trujillo)\ **Replies:** 8\ **Last updated:** [5 April 2019 11:04 UTC](https://discourse.nodered.org/t/how-can-i-create-a-default-property-like-array/9718 "2019-04-05T11:04:52Z")
Hi, I try to set an array var to store some objects in a node, something like that: In the image, Atributos is an array with 3 objects, but I can't use this variable in the js file. Thanks! --- ## [Emailing image from IP camera](https://discourse.nodered.org/t/emailing-image-from-ip-camera/9791)
**Author:** [@ceejm1](https://discourse.nodered.org/u/ceejm1)\ **Replies:** 10\ **Last updated:** [5 April 2019 10:50 UTC](https://discourse.nodered.org/t/emailing-image-from-ip-camera/9791 "2019-04-05T10:50:28Z")
Hello, I am using the following to email an image from an IP camera. Kindly supplied by a user on the forum. Works well when viewing on outlook but when viewing on iphone the image does not always update as the file n… --- ## [I want divide my flow](https://discourse.nodered.org/t/i-want-divide-my-flow/9785)
**Author:** [@Kwonsoyeong](https://discourse.nodered.org/u/Kwonsoyeong)\ **Replies:** 2\ **Last updated:** [5 April 2019 07:11 UTC](https://discourse.nodered.org/t/i-want-divide-my-flow/9785 "2019-04-05T07:11:40Z")
Hi The picture is my node-red flow. I want to divide my flow for three flow. Is this possible? And I want to store three flow to each files and I want to use this files for another device. I don't know this operati… --- ## [Worldmap String Format](https://discourse.nodered.org/t/worldmap-string-format/9783)
**Author:** [@MrDmx1024](https://discourse.nodered.org/u/MrDmx1024)\ **Replies:** 4\ **Last updated:** [5 April 2019 06:56 UTC](https://discourse.nodered.org/t/worldmap-string-format/9783 "2019-04-05T06:56:51Z")
I am using the worldmap node to create pins on a local map of our devices. I have it working fine manually however when one get the info from my locations it is not formatted correctly. Could somebody point me in the c… --- ## [Transfer data from Python Script to the Cloud using Node Red](https://discourse.nodered.org/t/transfer-data-from-python-script-to-the-cloud-using-node-red/9734)
**Author:** [@xoani](https://discourse.nodered.org/u/xoani)\ **Replies:** 9\ **Last updated:** [5 April 2019 06:54 UTC](https://discourse.nodered.org/t/transfer-data-from-python-script-to-the-cloud-using-node-red/9734 "2019-04-05T06:54:16Z")
I am running a Python Script on a Raspberry Pi to get the data measured by a Smart Plug (voltage, current, energy, power). This data is being printed on the terminal of the Raspberry Pi, but what I need is to send it to … --- ## [Optimization Of Buffer Conversion](https://discourse.nodered.org/t/optimization-of-buffer-conversion/9754)
**Author:** [@seth350](https://discourse.nodered.org/u/seth350)\ **Replies:** 3\ **Last updated:** [4 April 2019 20:58 UTC](https://discourse.nodered.org/t/optimization-of-buffer-conversion/9754 "2019-04-04T20:58:25Z")
More of a programming topic, but I felt that the good people here could give their advice. I have a JSONArray buffer that is received by a tcp node, like so: \[2,115,99,97,110,110,101,114,9,48,10,90,111,110,101,49,9,56,… --- ## [Updating NR. What I thought should work doesn't](https://discourse.nodered.org/t/updating-nr-what-i-thought-should-work-doesnt/9756)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 11\ **Last updated:** [4 April 2019 20:21 UTC](https://discourse.nodered.org/t/updating-nr-what-i-thought-should-work-doesnt/9756 "2019-04-04T20:21:38Z")
I know....... I have had problems updating NR on my machines before and so when I finally got a definitive command, I saved it and used it to update all machines. Said command: bash \<(curl -sL https://raw.githubuserco… --- ## [Node red with microservices](https://discourse.nodered.org/t/node-red-with-microservices/9763)
**Author:** [@Arth](https://discourse.nodered.org/u/Arth)\ **Replies:** 11\ **Last updated:** [4 April 2019 14:09 UTC](https://discourse.nodered.org/t/node-red-with-microservices/9763 "2019-04-04T14:09:31Z")
Hello, I would like to do following example: I would like to have my own microservice - for example - /weater?location=? (and how can I do that "?" would be changed to wanted location in node red?) - then in other node… --- ## [Postgres Node missing](https://discourse.nodered.org/t/postgres-node-missing/9324)
**Author:** [@wikus](https://discourse.nodered.org/u/wikus)\ **Replies:** 4\ **Last updated:** [4 April 2019 12:55 UTC](https://discourse.nodered.org/t/postgres-node-missing/9324 "2019-04-04T12:55:54Z")
Hi, I have been using the node-red-contrib-postgres node in various projects, but I noticed today that it is now not in the palette or on Node-RED Library anymore? Does anyone know what is happening with this node? Sh… --- ## [Timestamp in specific time error](https://discourse.nodered.org/t/timestamp-in-specific-time-error/9772)
**Author:** [@JokinSegu](https://discourse.nodered.org/u/JokinSegu)\ **Replies:** 5\ **Last updated:** [4 April 2019 12:53 UTC](https://discourse.nodered.org/t/timestamp-in-specific-time-error/9772 "2019-04-04T12:53:16Z")
I am trying to send a signal in hour I want every day but if I put 14:30 it sends at 16:30, and if I put it 12:30 it sends at 14:30. How can I correct that? --- ## [Get firebase auto-generated ID via msg.payload](https://discourse.nodered.org/t/get-firebase-auto-generated-id-via-msg-payload/9765)
**Author:** [@heliocosta](https://discourse.nodered.org/u/heliocosta)\ **Replies:** 1\ **Last updated:** [4 April 2019 10:23 UTC](https://discourse.nodered.org/t/get-firebase-auto-generated-id-via-msg-payload/9765 "2019-04-04T10:23:23Z")
Hi there, I've worked with Firebase as my database and user authentication. For my project, it's necessary to use the auto-generated ID from firebase. I've tried with no success to get the id via msg.payload. How … --- ## [Average bars node issue](https://discourse.nodered.org/t/average-bars-node-issue/9751)
**Author:** [@olab](https://discourse.nodered.org/u/olab)\ **Replies:** 3\ **Last updated:** [4 April 2019 07:59 UTC](https://discourse.nodered.org/t/average-bars-node-issue/9751 "2019-04-04T07:59:11Z")
Hello, I’ve implemended the average bars node into my node-red project but there is one issue. It looks to me that all average values is linked to the wrong x legend when using Daily display. Values seems to be logged o… --- ## [My "Project History" tab stopped working, and is now a completely gray panel](https://discourse.nodered.org/t/my-project-history-tab-stopped-working-and-is-now-a-completely-gray-panel/9736)
**Author:** [@rando](https://discourse.nodered.org/u/rando)\ **Replies:** 2\ **Last updated:** [3 April 2019 15:30 UTC](https://discourse.nodered.org/t/my-project-history-tab-stopped-working-and-is-now-a-completely-gray-panel/9736 "2019-04-03T15:30:03Z")
Today when I went to push some new changes to git hub I noticed that when I clicked the project history tab it doesn't populate, it is just a gray rectangle. Up to this point it's been working great, and I've made dozen… --- ## [Parsing txt file](https://discourse.nodered.org/t/parsing-txt-file/9721)
**Author:** [@SmartCanteen](https://discourse.nodered.org/u/SmartCanteen)\ **Replies:** 4\ **Last updated:** [3 April 2019 15:30 UTC](https://discourse.nodered.org/t/parsing-txt-file/9721 "2019-04-03T15:30:01Z")
Hello there , I am new to Node-red and I\`d like to know how do I can parse text from a file and display it on my dashboard ... My dashboard is ready and working but idk how to parse the "Menu1" word from my txt file ... … --- ## [Time scheduled light sequence](https://discourse.nodered.org/t/time-scheduled-light-sequence/9606)
**Author:** [@Ben](https://discourse.nodered.org/u/Ben)\ **Replies:** 3\ **Last updated:** [3 April 2019 15:25 UTC](https://discourse.nodered.org/t/time-scheduled-light-sequence/9606 "2019-04-03T15:25:59Z")
Hello, im still pretty new to Node-RED and hoped maybe someone with a bit more experience could help me with a problem im trying to solve. I have made a light sequence combined with a audio clip. Timestamp is set to g… --- ## [Triggering a new flow](https://discourse.nodered.org/t/triggering-a-new-flow/9584)
**Author:** [@KevinPamu](https://discourse.nodered.org/u/KevinPamu)\ **Replies:** 2\ **Last updated:** [3 April 2019 14:32 UTC](https://discourse.nodered.org/t/triggering-a-new-flow/9584 "2019-04-03T14:32:26Z")
I have been going through the forum to find a solution. I need to trigger another flow B when I finish a certain task on flow A. I read a little about sub-flows but not quite sure what is the best practice to do this. An… --- ## [Help with a function node](https://discourse.nodered.org/t/help-with-a-function-node/4836)
**Author:** [@RackIoT](https://discourse.nodered.org/u/RackIoT)\ **Replies:** 27\ **Last updated:** [3 April 2019 12:55 UTC](https://discourse.nodered.org/t/help-with-a-function-node/4836 "2019-04-03T12:55:38Z")
HI All I am busy getting to grips with JS and node-red and am studiying several sources to get up to speed, but I am after a little help with writing a function in the mean time. Into the function node I have 2 feeds a… --- ## [Libav-tools installation](https://discourse.nodered.org/t/libav-tools-installation/9717)
**Author:** [@lodv](https://discourse.nodered.org/u/lodv)\ **Replies:** 14\ **Last updated:** [3 April 2019 11:35 UTC](https://discourse.nodered.org/t/libav-tools-installation/9717 "2019-04-03T11:35:10Z")
I'm new with node-red. I'm following the instructions on https://youtu.be/ihZWrJmbGFY I installed the libav-tools as instructed, I can open the program on the Raspberry Pi with avconv. I created the folder and edited … --- ## [Variable delay (again) Yeah, sorry](https://discourse.nodered.org/t/variable-delay-again-yeah-sorry/9714)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 4\ **Last updated:** [3 April 2019 09:58 UTC](https://discourse.nodered.org/t/variable-delay-again-yeah-sorry/9714 "2019-04-03T09:58:11Z")
To start with: Sorry. I don't get what has happened but something is going on. Back story: I asked a long time ago about how to make an adjustable frequency output from the delay node. I looked in my post/question… --- ## [PLC, json get and post](https://discourse.nodered.org/t/plc-json-get-and-post/9662)
**Author:** [@ALeman](https://discourse.nodered.org/u/ALeman)\ **Replies:** 6\ **Last updated:** [3 April 2019 06:30 UTC](https://discourse.nodered.org/t/plc-json-get-and-post/9662 "2019-04-03T06:30:57Z")
Hey, I'm new to Node-RED. My goal is to communicate between a webservice and a PLC. I have been succesful in putting data into the PLC. The post will be a bunch of parameters to be stored in the PLC. Any suggestions on… --- ## [Version issues with connecting to hyperledger fabric](https://discourse.nodered.org/t/version-issues-with-connecting-to-hyperledger-fabric/7100)
**Author:** [@dicontas](https://discourse.nodered.org/u/dicontas)\ **Replies:** 10\ **Last updated:** [2 April 2019 20:45 UTC](https://discourse.nodered.org/t/version-issues-with-connecting-to-hyperledger-fabric/7100 "2019-04-02T20:45:31Z")
Hi, I am trying to connect 0.19.5 node-red to hyperledger fabric 1.2.1 or above. Getting connection errors such as: \[error\] \[hyperledger-composer-in:composer in admin@carauction-network\] Error: Error trying to ping. E… [Previous page](https://discourse.nodered.org/c/general/7.md?page=897) [Next page](https://discourse.nodered.org/c/general/7.md?page=899)