# Latest

**URL:** https://discourse.nodered.org/latest.md?page=790

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

**Page:** 791

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## [How to Hide and Show Line Chart Series?](https://discourse.nodered.org/t/how-to-hide-and-show-line-chart-series/7625)

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**Author:** [@tcontrada](https://discourse.nodered.org/u/tcontrada)\
**Replies:** 8\
**Last updated:** [19 June 2021 17:29 UTC](https://discourse.nodered.org/t/how-to-hide-and-show-line-chart-series/7625 "2021-06-19T17:29:18Z")

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Is there a way in a chart with multiple series to hide/show individual series without affecting the data already in the chart? Thanks

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## [Usb camera image sent to email with preview](https://discourse.nodered.org/t/usb-camera-image-sent-to-email-with-preview/47371)

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**Author:** [@Rain](https://discourse.nodered.org/u/Rain)\
**Replies:** 0\
**Last updated:** [19 June 2021 16:26 UTC](https://discourse.nodered.org/t/usb-camera-image-sent-to-email-with-preview/47371 "2021-06-19T16:26:56Z")

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Hi, I got this flow so far, managed to send the image from the usbcamera to email, but the image is corrupted and can't be previewed. \[{"id":"f2af706c.c79d","type":"tab","label":"Flow 1","disabled":false,"info":""},{"i…

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## [Telegram paragraphs](https://discourse.nodered.org/t/telegram-paragraphs/47366)

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**Author:** [@automati](https://discourse.nodered.org/u/automati)\
**Replies:** 17\
**Last updated:** [19 June 2021 15:55 UTC](https://discourse.nodered.org/t/telegram-paragraphs/47366 "2021-06-19T15:55:35Z")

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Hello everybody Does anyone know what the function node has to look like if I want individual paragraphs in the message? So for example: Status: on Music: off So far I've only managed to send status: on, for exam…

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## [Template UI fed by template node msg.template - how to make it appear?](https://discourse.nodered.org/t/template-ui-fed-by-template-node-msg-template-how-to-make-it-appear/47339)

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**Author:** [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Replies:** 7\
**Last updated:** [19 June 2021 11:51 UTC](https://discourse.nodered.org/t/template-ui-fed-by-template-node-msg-template-how-to-make-it-appear/47339 "2021-06-19T11:51:58Z")

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I use Template UI node a lot and instead of entering code directly, I sometimes like to feed it from the Template node: Sometimes I will like to put the Template node (the brown one) into a subflow along with some…

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## [Help with htpasswd file to UI List](https://discourse.nodered.org/t/help-with-htpasswd-file-to-ui-list/47362)

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**Author:** [@leftymuller](https://discourse.nodered.org/u/leftymuller)\
**Replies:** 0\
**Last updated:** [19 June 2021 09:00 UTC](https://discourse.nodered.org/t/help-with-htpasswd-file-to-ui-list/47362 "2021-06-19T09:00:23Z")

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Hello all! Just trying to read htpasswd file and display it in a list on dashboard. Not having much luck.. can somebody assist or suggest a better way to do it? \[{"id":"400b685b.9e7728","type":"exec","z":"9f18fd18.1b7…

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## [Mysql lost connection after INSERT](https://discourse.nodered.org/t/mysql-lost-connection-after-insert/47325)

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**Author:** [@AK51](https://discourse.nodered.org/u/AK51)\
**Replies:** 16\
**Last updated:** [19 June 2021 08:55 UTC](https://discourse.nodered.org/t/mysql-lost-connection-after-insert/47325 "2021-06-19T08:55:51Z")

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Hi, I have played with mysql and it worked before last year. However, last week, I create a simple flow and the the node-red crash after the INSERT. I have tried in a win-32 system and raspberry pi system, same problem. …

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## [Modbus Slave device PI](https://discourse.nodered.org/t/modbus-slave-device-pi/12483)

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**Author:** [@fordarn](https://discourse.nodered.org/u/fordarn)\
**Replies:** 13\
**Last updated:** [19 June 2021 07:37 UTC](https://discourse.nodered.org/t/modbus-slave-device-pi/12483 "2021-06-19T07:37:51Z")

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Hi All Just wondering if anyone has came across a node set for the PI to act as a Modbus slave? All the Modbus nodes I have came across seem to be Master type arrangements Thanks

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## [Default project on start](https://discourse.nodered.org/t/default-project-on-start/4327)

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**Author:** [@sragneau](https://discourse.nodered.org/u/sragneau)\
**Replies:** 2\
**Last updated:** [19 June 2021 06:27 UTC](https://discourse.nodered.org/t/default-project-on-start/4327 "2021-06-19T06:27:39Z")

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Hi everyone, I'm looking for creating a new docker of nodered with the project feature. In my dockerfile i clone my existing nodered project (flow, package.json ...) into the directory projects. /projects/myproject/ B…

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## [Sonos via NodeRed](https://discourse.nodered.org/t/sonos-via-nodered/47009)

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**Author:** [@automati](https://discourse.nodered.org/u/automati)\
**Replies:** 4\
**Last updated:** [19 June 2021 05:56 UTC](https://discourse.nodered.org/t/sonos-via-nodered/47009 "2021-06-19T05:56:30Z")

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Hello everybody Does anyone know how I can play an MP3 file on my Sonos amp via Nodered? Many Thanks

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## [Modbus TCP IP address and port into Parameters](https://discourse.nodered.org/t/modbus-tcp-ip-address-and-port-into-parameters/47354)

<div class="topic-metadata">

**Author:** [@Makimax](https://discourse.nodered.org/u/Makimax)\
**Replies:** 0\
**Last updated:** [18 June 2021 23:44 UTC](https://discourse.nodered.org/t/modbus-tcp-ip-address-and-port-into-parameters/47354 "2021-06-18T23:44:24Z")

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Hi, i'm new into Node-red, i tried to use Modbus Flex Getter to read 32 Bit integers from a Modbus client (Schneider M221 PLC). Everything is OK but now, i want to change the IP Address of the Server used by the Modbus F…

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## [Uibuilder output](https://discourse.nodered.org/t/uibuilder-output/47322)

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**Author:** [@Joker](https://discourse.nodered.org/u/Joker)\
**Replies:** 4\
**Last updated:** [19 June 2021 01:50 UTC](https://discourse.nodered.org/t/uibuilder-output/47322 "2021-06-19T01:50:02Z")

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Hi everyone, May I know how to create a "button" using pure javascript? I've created one using html, css and javascript but I am having issues with sending the output. I tried with uibuilder.send but nothing showed up i…

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## [Dashboard Trouble](https://discourse.nodered.org/t/dashboard-trouble/47349)

<div class="topic-metadata">

**Author:** [@KidSquid](https://discourse.nodered.org/u/KidSquid)\
**Replies:** 6\
**Last updated:** [19 June 2021 01:27 UTC](https://discourse.nodered.org/t/dashboard-trouble/47349 "2021-06-19T01:27:58Z")

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Hello - Somewhat of a newbie here....appreciate your patience and assistance. I'm having an issue getting to implement a Dashboard. When I try and visit my install location /ui I receive a blank page with the title of…

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## [Http endpoint from modbus](https://discourse.nodered.org/t/http-endpoint-from-modbus/47283)

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**Author:** [@ketpa](https://discourse.nodered.org/u/ketpa)\
**Replies:** 6\
**Last updated:** [18 June 2021 22:25 UTC](https://discourse.nodered.org/t/http-endpoint-from-modbus/47283 "2021-06-18T22:25:30Z")

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How to create endpoint from this. \[{"id":"1cb4ba37.d45666","type":"http in","z":"a6893b09.aee2d8","name":"","url":"/setpoint","method":"get","upload":false,"swaggerDoc":"","x":90,"y":660,"wires":\[\["82cd602c.e8fbb"\]\]}…

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## [Split sensor output](https://discourse.nodered.org/t/split-sensor-output/47256)

<div class="topic-metadata">

**Author:** [@jonchargreaves](https://discourse.nodered.org/u/jonchargreaves)\
**Replies:** 4\
**Last updated:** [18 June 2021 20:16 UTC](https://discourse.nodered.org/t/split-sensor-output/47256 "2021-06-18T20:16:39Z")

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I currently have a sensor that outputs the following :- {"CurrentTemperature":32.8,"AirPressure":255} I want to split this into 2 messages of 32.8 and 255 can anyone give me some assistance please?

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## [MQTT Messages to \*.CSV?](https://discourse.nodered.org/t/mqtt-messages-to-csv/47313)

<div class="topic-metadata">

**Author:** [@Steinspiel](https://discourse.nodered.org/u/Steinspiel)\
**Replies:** 4\
**Last updated:** [18 June 2021 20:13 UTC](https://discourse.nodered.org/t/mqtt-messages-to-csv/47313 "2021-06-18T20:13:27Z")

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I want to write MQTT messages in a \* .CSV file to open them with Excel. The MQTT messages contain only words ... Problem 1: The \* .CSV contains {"col1": "A-Word"} or {"col1": "B-Word"}. Can you tell me how I can achiev…

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## [Node-Red Crashing Upon Opening](https://discourse.nodered.org/t/node-red-crashing-upon-opening/47346)

<div class="topic-metadata">

**Author:** [@psalibe](https://discourse.nodered.org/u/psalibe)\
**Replies:** 6\
**Last updated:** [18 June 2021 19:42 UTC](https://discourse.nodered.org/t/node-red-crashing-upon-opening/47346 "2021-06-18T19:42:26Z")

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Hello, I have a super urgent matter of node-red crashing upon opening. It has been operating completely fine up until about 1 hour ago where now it crashes repeatedly. Below is the error I get. Running on a Raspberry-Pi…

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## [Multi-Language Dashboard](https://discourse.nodered.org/t/multi-language-dashboard/47141)

<div class="topic-metadata">

**Author:** [@psalibe](https://discourse.nodered.org/u/psalibe)\
**Replies:** 3\
**Last updated:** [18 June 2021 14:15 UTC](https://discourse.nodered.org/t/multi-language-dashboard/47141 "2021-06-18T14:15:55Z")

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Hi All, I know this topic was covered briefly last year in this forum here but I wanted to circle back and see if anything had changed in regards to this or if anyone has a good idea on how to do this... We have a node…

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## [How Read Data from MongoDB database](https://discourse.nodered.org/t/how-read-data-from-mongodb-database/44582)

<div class="topic-metadata">

**Author:** [@Kartiknodered](https://discourse.nodered.org/u/Kartiknodered)\
**Replies:** 2\
**Last updated:** [18 June 2021 14:14 UTC](https://discourse.nodered.org/t/how-read-data-from-mongodb-database/44582 "2021-06-18T14:14:14Z")

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How to read data from MongoDB database using mongodb2 node. Actually i don't know where to write find query.

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## [Feature Request: GPIO Node Support Python3 Exclusives](https://discourse.nodered.org/t/feature-request-gpio-node-support-python3-exclusives/47200)

<div class="topic-metadata">

**Author:** [@garrenr14](https://discourse.nodered.org/u/garrenr14)\
**Replies:** 13\
**Last updated:** [18 June 2021 14:02 UTC](https://discourse.nodered.org/t/feature-request-gpio-node-support-python3-exclusives/47200 "2021-06-18T14:02:48Z")

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Hello, I have uninstalled Python2 on my Raspberry Pi and I am using Python3 only. I have an alias for python=python3 in place, which works in most cases. However, I noticed that the GPIO node no longer works as the unde…

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## [Encrypted Login/Logout using Node-RED via MySQL](https://discourse.nodered.org/t/encrypted-login-logout-using-node-red-via-mysql/47306)

<div class="topic-metadata">

**Author:** [@grandautism](https://discourse.nodered.org/u/grandautism)\
**Replies:** 6\
**Last updated:** [18 June 2021 14:02 UTC](https://discourse.nodered.org/t/encrypted-login-logout-using-node-red-via-mysql/47306 "2021-06-18T14:02:23Z")

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hello everyone i want to know how to crypt pasword in mySQL like showing the photo thank you

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## [Rasperry Pi 4 Serial port RX issue](https://discourse.nodered.org/t/rasperry-pi-4-serial-port-rx-issue/47202)

<div class="topic-metadata">

**Author:** [@dsplitz](https://discourse.nodered.org/u/dsplitz)\
**Replies:** 2\
**Last updated:** [18 June 2021 13:32 UTC](https://discourse.nodered.org/t/rasperry-pi-4-serial-port-rx-issue/47202 "2021-06-18T13:32:08Z")

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I've been successfully using NODE-RED for a few weeks now on my laptop. It was decided we want to use a Raspberry Pi as our NODE-RED platform so I bought a Pi4 and IO board. I've started by enabling the mini-UART and us…

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## [How to resolve the problem of Node-Red can't be launched](https://discourse.nodered.org/t/how-to-resolve-the-problem-of-node-red-cant-be-launched/47324)

<div class="topic-metadata">

**Author:** [@FrancisLeung](https://discourse.nodered.org/u/FrancisLeung)\
**Replies:** 4\
**Last updated:** [18 June 2021 12:33 UTC](https://discourse.nodered.org/t/how-to-resolve-the-problem-of-node-red-cant-be-launched/47324 "2021-06-18T12:33:28Z")

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Hi all, I'm new member and very fresh in the application of Node-Red; May I enquire who can help resolve the problem that Node-Red can not be launched and shut down itself suddenly, when I drag a component of Modbus and…

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## [Stdout and stderr from bash script to Dashboard?](https://discourse.nodered.org/t/stdout-and-stderr-from-bash-script-to-dashboard/47323)

<div class="topic-metadata">

**Author:** [@Mannshoch](https://discourse.nodered.org/u/Mannshoch)\
**Replies:** 1\
**Last updated:** [18 June 2021 12:15 UTC](https://discourse.nodered.org/t/stdout-and-stderr-from-bash-script-to-dashboard/47323 "2021-06-18T12:15:48Z")

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Is there a way to e.g. see the last 5 outputs from a bash-script started with an exec node?

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## [Get GPIO State Node-Red](https://discourse.nodered.org/t/get-gpio-state-node-red/3712)

<div class="topic-metadata">

**Author:** [@b35b5dad43ea282b65d0](https://discourse.nodered.org/u/b35b5dad43ea282b65d0)\
**Replies:** 6\
**Last updated:** [18 June 2021 12:15 UTC](https://discourse.nodered.org/t/get-gpio-state-node-red/3712 "2021-06-18T12:15:32Z")

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Hello, I am running different actors with my Node-Red Flow. Over the GPIO Pins of my Raspberry Pi. Now I would like to make a dashboard to show the actor activity. I tried to use the gpi-gpio in Node but then the mess…

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## [Password is shown in context of node in plain text](https://discourse.nodered.org/t/password-is-shown-in-context-of-node-in-plain-text/47007)

<div class="topic-metadata">

**Author:** [@kiran007](https://discourse.nodered.org/u/kiran007)\
**Replies:** 9\
**Last updated:** [18 June 2021 11:56 UTC](https://discourse.nodered.org/t/password-is-shown-in-context-of-node-in-plain-text/47007 "2021-06-18T11:56:22Z")

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I have a custom node which accepts username and password, if the user submits the details and click on node to view node info/content information then password field is displayed in clear text. please refer to the image …

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## [How to delete all numbers after point](https://discourse.nodered.org/t/how-to-delete-all-numbers-after-point/11449)

<div class="topic-metadata">

**Author:** [@muharremsari](https://discourse.nodered.org/u/muharremsari)\
**Replies:** 5\
**Last updated:** [18 June 2021 10:43 UTC](https://discourse.nodered.org/t/how-to-delete-all-numbers-after-point/11449 "2021-06-18T10:43:40Z")

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How can I do this with Math.round() or some function. My result looking like this 26.200000762939453

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## [Does anyone have an example of a Mikrotik router](https://discourse.nodered.org/t/does-anyone-have-an-example-of-a-mikrotik-router/12683)

<div class="topic-metadata">

**Author:** [@tashbee](https://discourse.nodered.org/u/tashbee)\
**Replies:** 7\
**Last updated:** [18 June 2021 10:42 UTC](https://discourse.nodered.org/t/does-anyone-have-an-example-of-a-mikrotik-router/12683 "2021-06-18T10:42:46Z")

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Hi, I wonder if anyone out there can give me a syntax example of how to use the raw input to the node-red-contrib-mikrotik For example how would I do the equivalent of /ip firewall filter enable numbers=1 Have looked…

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## ["Deploy failed: No response from server" when inserting into MySQL](https://discourse.nodered.org/t/deploy-failed-no-response-from-server-when-inserting-into-mysql/18822)

<div class="topic-metadata">

**Author:** [@Sagar](https://discourse.nodered.org/u/Sagar)\
**Replies:** 38\
**Last updated:** [18 June 2021 10:18 UTC](https://discourse.nodered.org/t/deploy-failed-no-response-from-server-when-inserting-into-mysql/18822 "2021-06-18T10:18:44Z")

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I am getting "Deploy failed: No response from server" when I am trying to Insert the data coming from real-time sensors in JSON format. All the other queries except the Insert query is running fine. Below is the Insert…

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## [Inheritance of custom nodes](https://discourse.nodered.org/t/inheritance-of-custom-nodes/47282)

<div class="topic-metadata">

**Author:** [@H3llsing](https://discourse.nodered.org/u/H3llsing)\
**Replies:** 14\
**Last updated:** [18 June 2021 08:18 UTC](https://discourse.nodered.org/t/inheritance-of-custom-nodes/47282 "2021-06-18T08:18:33Z")

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Hey there, im writing currently a lot of custom nodes for my company and im interested in a general concept of custom node inheritance. Im dividing my functionality from the ui part. that allows me to use another node …

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## [GPSD appears to prevent system from loading](https://discourse.nodered.org/t/gpsd-appears-to-prevent-system-from-loading/45726)

<div class="topic-metadata">

**Author:** [@NPT](https://discourse.nodered.org/u/NPT)\
**Replies:** 16\
**Last updated:** [18 June 2021 07:20 UTC](https://discourse.nodered.org/t/gpsd-appears-to-prevent-system-from-loading/45726 "2021-06-18T07:20:23Z")

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Hi, I am fairly new to Pi despite years of Windows programming and after my first fairly intense day with the totally brilliant Node-RED, am marvelling at its usefulness. Using Palette, I installed GPSD into a very suc…

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