# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1264

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

**Page:** 1265

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## [Cloudflare Crypto week](https://discourse.nodered.org/t/cloudflare-crypto-week/12338)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 1\
**Last updated:** [20 June 2019 15:08 UTC](https://discourse.nodered.org/t/cloudflare-crypto-week/12338 "2019-06-20T15:08:28Z")

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Security is a subject that keeps cropping up in the forum, so I thought members may be interested in Cloudflare's Crypto week, where they are posting a series of articles, one per day for a week. If this is too far O…

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## [How to install node-red with custom nodes without internet connection?](https://discourse.nodered.org/t/how-to-install-node-red-with-custom-nodes-without-internet-connection/12361)

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**Author:** [@gbove731](https://discourse.nodered.org/u/gbove731)\
**Replies:** 1\
**Last updated:** [20 June 2019 15:07 UTC](https://discourse.nodered.org/t/how-to-install-node-red-with-custom-nodes-without-internet-connection/12361 "2019-06-20T15:07:31Z")

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I would like to deploy my Node-Red environment (with custom nodes) in a windows 10 pc without internet connection and without administrative permission. Is there a way to do that?

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## [Node Red not working across guest networks](https://discourse.nodered.org/t/node-red-not-working-across-guest-networks/12411)

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**Author:** [@thats\_right2](https://discourse.nodered.org/u/thats_right2)\
**Replies:** 5\
**Last updated:** [20 June 2019 14:32 UTC](https://discourse.nodered.org/t/node-red-not-working-across-guest-networks/12411 "2019-06-20T14:32:30Z")

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I am working with a group of students to develop data monitoring stations using several Raspberry Pis. We have developed the dashboards which can be accessed on the local device as well as across authenticated networks. …

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## [Count data, store it and send it by trigger](https://discourse.nodered.org/t/count-data-store-it-and-send-it-by-trigger/12424)

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**Author:** [@Carloj](https://discourse.nodered.org/u/Carloj)\
**Replies:** 4\
**Last updated:** [20 June 2019 11:59 UTC](https://discourse.nodered.org/t/count-data-store-it-and-send-it-by-trigger/12424 "2019-06-20T11:59:00Z")

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I want to count the amount of messages, store them and then send the total every 10 seconds to the mqtt broker. Like the first signal on the broker is 0, then 50, then 100...... I got the following flow but it just sen…

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## [Node-red installation always finishing with error](https://discourse.nodered.org/t/node-red-installation-always-finishing-with-error/12014)

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**Author:** [@saspol](https://discourse.nodered.org/u/saspol)\
**Replies:** 5\
**Last updated:** [20 June 2019 07:24 UTC](https://discourse.nodered.org/t/node-red-installation-always-finishing-with-error/12014 "2019-06-20T07:24:42Z")

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Hello, I tried different install methods, but always got error in same place. Guess some system library not installed, can you suggest please how to fix this? npm install --production \> bcrypt@3.0.5 install /var/www…

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## [Node-Red controlling 8 outlets for AC Power](https://discourse.nodered.org/t/node-red-controlling-8-outlets-for-ac-power/11987)

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**Author:** [@kocherjj](https://discourse.nodered.org/u/kocherjj)\
**Replies:** 3\
**Last updated:** [20 June 2019 05:56 UTC](https://discourse.nodered.org/t/node-red-controlling-8-outlets-for-ac-power/11987 "2019-06-20T05:56:51Z")

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I'm having too much fun with Node-Red! I had an old rack mounted power strip and I got to thinking that Node-Red and a Pi Zero W would be the perfect solution to giving myself an inexpensive IP controlled Power Strip. I…

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## [LED's not showing colours with latest dashboard](https://discourse.nodered.org/t/leds-not-showing-colours-with-latest-dashboard/12307)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 32\
**Last updated:** [20 June 2019 04:18 UTC](https://discourse.nodered.org/t/leds-not-showing-colours-with-latest-dashboard/12307 "2019-06-20T04:18:37Z")

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I recently asked about buttons/LEDs not updating their colours until the page is refreshed. I updated the offending machine's dashboard and all was good. Recently I got interested with colours to use with buttons/LEDs …

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## [Pre-signed url IBM COS](https://discourse.nodered.org/t/pre-signed-url-ibm-cos/12394)

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**Author:** [@burtonboucher](https://discourse.nodered.org/u/burtonboucher)\
**Replies:** 0\
**Last updated:** [19 June 2019 12:16 UTC](https://discourse.nodered.org/t/pre-signed-url-ibm-cos/12394 "2019-06-19T12:16:23Z")

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Using node-red-contrib-cos 0.15. running on Node-RED v0.20.5 blue mix. Checking getURL does not return url in msg. End goal is to get presign url for IBM COS. JavaScript code ok. Just need most simple GET using querystr…

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## [How to set LoRa TTN node to trigger another node?](https://discourse.nodered.org/t/how-to-set-lora-ttn-node-to-trigger-another-node/12365)

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**Author:** [@HaVi](https://discourse.nodered.org/u/HaVi)\
**Replies:** 15\
**Last updated:** [19 June 2019 12:25 UTC](https://discourse.nodered.org/t/how-to-set-lora-ttn-node-to-trigger-another-node/12365 "2019-06-19T12:25:18Z")

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The LoRa node receives a payload and writes the measurement in a database, so far so good. But I also want the LoRa node to activate / trigger the HTTP Request when a payload comes in. Can someone tell me which node I ne…

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## [NRF24 - WiFi Problem on raspberry pi](https://discourse.nodered.org/t/nrf24-wifi-problem-on-raspberry-pi/12379)

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**Author:** [@nahuavrilero](https://discourse.nodered.org/u/nahuavrilero)\
**Replies:** 8\
**Last updated:** [19 June 2019 12:01 UTC](https://discourse.nodered.org/t/nrf24-wifi-problem-on-raspberry-pi/12379 "2019-06-19T12:01:47Z")

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Hi! A few days ago, i tried to use NRF24 node. The thing is that there's an error ocurring and the module doesn't load up (i can see this in node-red log). But something strange is happening: when this error occurs, Ra…

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## [Problem with certificate file](https://discourse.nodered.org/t/problem-with-certificate-file/12390)

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**Author:** [@dongtuuyenblackpeony](https://discourse.nodered.org/u/dongtuuyenblackpeony)\
**Replies:** 1\
**Last updated:** [19 June 2019 10:36 UTC](https://discourse.nodered.org/t/problem-with-certificate-file/12390 "2019-06-19T10:36:05Z")

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Hi guys, new to the forum and I have been able to google some similar topics, but not find a concrete solution. I am trying to use the IIOT-OPCUA client from the Contrib library, but get this error: cannot locate certi…

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## [Force node-red to English?](https://discourse.nodered.org/t/force-node-red-to-english/9630)

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**Author:** [@jaeti01](https://discourse.nodered.org/u/jaeti01)\
**Replies:** 14\
**Last updated:** [19 June 2019 09:39 UTC](https://discourse.nodered.org/t/force-node-red-to-english/9630 "2019-06-19T09:39:58Z")

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Hello, I am in the process of moving my node-red from a raspberry installation into a docker container on a more powerful machine. I got the container up and running, still need to migrate data. But what struck me firs…

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## [Delete data from tables in the dashboard and update in sqlite](https://discourse.nodered.org/t/delete-data-from-tables-in-the-dashboard-and-update-in-sqlite/12383)

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**Author:** [@ppungpong](https://discourse.nodered.org/u/ppungpong)\
**Replies:** 0\
**Last updated:** [19 June 2019 08:10 UTC](https://discourse.nodered.org/t/delete-data-from-tables-in-the-dashboard-and-update-in-sqlite/12383 "2019-06-19T08:10:08Z")

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Hey all, I have a problem for 2 days. I have to do a project to send to an internship. But I don't know about html though, I design IoT monitoring and show data in table on dashboard. My feature is when deleting it can …

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## [Owl Intuition & Node Red](https://discourse.nodered.org/t/owl-intuition-node-red/692)

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**Author:** [@gillettos](https://discourse.nodered.org/u/gillettos)\
**Replies:** 5\
**Last updated:** [19 June 2019 07:18 UTC](https://discourse.nodered.org/t/owl-intuition-node-red/692 "2019-06-19T07:18:14Z")

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I’m a newbee here so go easy please… :roll\_eyes: Just getting into node\_red and must say I getting more and more hooked!! Basically I’m creating a home automation system, which I’ve connected up my Ikea Tradfri lightin…

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## [Node-red-contrib-web-worldmap and IOS - Map not displayed](https://discourse.nodered.org/t/node-red-contrib-web-worldmap-and-ios-map-not-displayed/12174)

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**Author:** [@Agratam](https://discourse.nodered.org/u/Agratam)\
**Replies:** 3\
**Last updated:** [19 June 2019 06:27 UTC](https://discourse.nodered.org/t/node-red-contrib-web-worldmap-and-ios-map-not-displayed/12174 "2019-06-19T06:27:41Z")

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Hallo, I'm new to the forum, so first of all.. Hi everyone! I've been plaing around with home assistant for about 1 year now and almost immediately transitioned all my automation to node-red, its great, and somehow eas…

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## [Trigger a message payload based on input from parallel port](https://discourse.nodered.org/t/trigger-a-message-payload-based-on-input-from-parallel-port/12017)

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**Author:** [@krikkit](https://discourse.nodered.org/u/krikkit)\
**Replies:** 44\
**Last updated:** [19 June 2019 03:37 UTC](https://discourse.nodered.org/t/trigger-a-message-payload-based-on-input-from-parallel-port/12017 "2019-06-19T03:37:27Z")

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Hi, I am completely new to Node-RED but I love it already. I have an arduino board connected to my raspberry pi, I need to send a one character output from the pi to the Arduino based on another input that comes from a …

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## [Using/embedding Node-RED Editor in an existing Angular 2+ project](https://discourse.nodered.org/t/using-embedding-node-red-editor-in-an-existing-angular-2-project/5970)

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**Author:** [@jk\_nodered](https://discourse.nodered.org/u/jk_nodered)\
**Replies:** 2\
**Last updated:** [17 June 2019 16:41 UTC](https://discourse.nodered.org/t/using-embedding-node-red-editor-in-an-existing-angular-2-project/5970 "2019-06-17T16:41:26Z")

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Hello, I am new to node-red. In my Angular 2+ project, I need a workflow editor. I am evaluating many node modules/javascript libraries for the same. I like the node-red flow editor and is interested in understanding i…

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## [Embed Node-RED into mean express on the same port in an iframe](https://discourse.nodered.org/t/embed-node-red-into-mean-express-on-the-same-port-in-an-iframe/785)

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**Author:** [@Dr.legendaddy](https://discourse.nodered.org/u/Dr.legendaddy)\
**Replies:** 26\
**Last updated:** [19 June 2019 02:48 UTC](https://discourse.nodered.org/t/embed-node-red-into-mean-express-on-the-same-port-in-an-iframe/785 "2019-06-19T02:48:08Z")

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Hello everybody! Thanks for all the great info in this forum! I have problems whilst trying to embed node-RED in my express mean app in an iframe. I want it to be on the same port to communicate with node-RED and use th…

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## [Delay node, when send a msg.reset can I send also next parameters?](https://discourse.nodered.org/t/delay-node-when-send-a-msg-reset-can-i-send-also-next-parameters/12367)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 9\
**Last updated:** [18 June 2019 20:09 UTC](https://discourse.nodered.org/t/delay-node-when-send-a-msg-reset-can-i-send-also-next-parameters/12367 "2019-06-18T20:09:38Z")

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Hi, I need to reset a node delay from previous value and at the same time I need to set on it the new message with new delay value. Can I do it with the same object or should I create anpther output on that function and …

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## [Change UI\_Switch status (true or false) at Runtime](https://discourse.nodered.org/t/change-ui-switch-status-true-or-false-at-runtime/12372)

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**Author:** [@ylechasseur](https://discourse.nodered.org/u/ylechasseur)\
**Replies:** 4\
**Last updated:** [18 June 2019 19:16 UTC](https://discourse.nodered.org/t/change-ui-switch-status-true-or-false-at-runtime/12372 "2019-06-18T19:16:18Z")

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Hi, After a query in Mysql, I display the data on regular UI\_textbox and I would like to use ui\_switch do display by boolean fields data. So far, no success, the ui\_switch never change according to received field value…

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## [How to Create a call back server](https://discourse.nodered.org/t/how-to-create-a-call-back-server/12370)

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**Author:** [@dineshpittala](https://discourse.nodered.org/u/dineshpittala)\
**Replies:** 3\
**Last updated:** [18 June 2019 18:25 UTC](https://discourse.nodered.org/t/how-to-create-a-call-back-server/12370 "2019-06-18T18:25:45Z")

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How to create a call back server and how to link to my node. kindly Help.

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## [How to send temperature data using GSM SIM900 Module to Node-RED](https://discourse.nodered.org/t/how-to-send-temperature-data-using-gsm-sim900-module-to-node-red/12337)

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**Author:** [@bouali](https://discourse.nodered.org/u/bouali)\
**Replies:** 5\
**Last updated:** [18 June 2019 14:05 UTC](https://discourse.nodered.org/t/how-to-send-temperature-data-using-gsm-sim900-module-to-node-red/12337 "2019-06-18T14:05:21Z")

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please how to send temperature data to node red using sim900 gsm module via mqtt . i have installed mosquitto broker and node red in my raspberry pi . my system is DHT11 sensor + Arduino+ nodered

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## [Node red won't restart because of flow credentials](https://discourse.nodered.org/t/node-red-wont-restart-because-of-flow-credentials/12347)

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**Author:** [@nassima100](https://discourse.nodered.org/u/nassima100)\
**Replies:** 11\
**Last updated:** [18 June 2019 12:45 UTC](https://discourse.nodered.org/t/node-red-wont-restart-because-of-flow-credentials/12347 "2019-06-18T12:45:56Z")

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Hello, I had Node Red working fine than I tried to deploy but I lost connection to the server and had this message: Your flow credentials file is encrypted using a system-generated key. If the system-generated key is l…

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## [Delay in activating a second command](https://discourse.nodered.org/t/delay-in-activating-a-second-command/12353)

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**Author:** [@Unikumet](https://discourse.nodered.org/u/Unikumet)\
**Replies:** 4\
**Last updated:** [18 June 2019 09:05 UTC](https://discourse.nodered.org/t/delay-in-activating-a-second-command/12353 "2019-06-18T09:05:08Z")

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Hi all, I'm currently working on a flow which has a basic UI which allows you to activate a function with a on / off switch which is connected to a trigger function automatically turning it off again after x-seconds. …

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## [Classification of Nodes](https://discourse.nodered.org/t/classification-of-nodes/12355)

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**Author:** [@mpillai](https://discourse.nodered.org/u/mpillai)\
**Replies:** 1\
**Last updated:** [18 June 2019 08:44 UTC](https://discourse.nodered.org/t/classification-of-nodes/12355 "2019-06-18T08:44:43Z")

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Hi , New to Node Red. Is there a classification of nodes that I can see like IOT nodes or SQL nodes etc., ? If so how do I access ? All your responses appreciated.

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## [Multiple Timers](https://discourse.nodered.org/t/multiple-timers/12321)

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**Author:** [@andre\_messias](https://discourse.nodered.org/u/andre_messias)\
**Replies:** 6\
**Last updated:** [18 June 2019 08:29 UTC](https://discourse.nodered.org/t/multiple-timers/12321 "2019-06-18T08:29:16Z")

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Hi everybody! It's my 1st time in the Forum and my 1st project too. I would like to have multiple timers available which will start according to a change state according to inputs. Therefore I could have simultaneously…

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## [Creating an Inject timer in a different timezone?](https://discourse.nodered.org/t/creating-an-inject-timer-in-a-different-timezone/12346)

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**Author:** [@JonRussell](https://discourse.nodered.org/u/JonRussell)\
**Replies:** 1\
**Last updated:** [18 June 2019 07:43 UTC](https://discourse.nodered.org/t/creating-an-inject-timer-in-a-different-timezone/12346 "2019-06-18T07:43:52Z")

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Hi, I'm running NodeRed to manage my MQTT / Tasmota home automation devices. One of the devices turns my hot water immersion heater on and off on Economy 7. (in case people don't know what Economy 7 is in the UK, its …

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## [Dynamically change characters expected in serial request](https://discourse.nodered.org/t/dynamically-change-characters-expected-in-serial-request/9230)

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**Author:** [@thatcadguy](https://discourse.nodered.org/u/thatcadguy)\
**Replies:** 8\
**Last updated:** [18 June 2019 04:44 UTC](https://discourse.nodered.org/t/dynamically-change-characters-expected-in-serial-request/9230 "2019-06-18T04:44:01Z")

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Hi, currently you can split input on timeout, silence, certain character, or fixed number of characters. Is it possible to have it return on a variable number of characters by passing the number in with the input message…

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## [Anyway to send data from Node-Red to Google Spread sheet for storing in table as dtb?](https://discourse.nodered.org/t/anyway-to-send-data-from-node-red-to-google-spread-sheet-for-storing-in-table-as-dtb/12212)

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**Author:** [@Yortz](https://discourse.nodered.org/u/Yortz)\
**Replies:** 2\
**Last updated:** [18 June 2019 02:42 UTC](https://discourse.nodered.org/t/anyway-to-send-data-from-node-red-to-google-spread-sheet-for-storing-in-table-as-dtb/12212 "2019-06-18T02:42:41Z")

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I'm try to put telemetry data from node red to google sheet for monitoring and stored as dtb. In the past I can create google form and used it as http request to put data to sheet. But now google form has changed link fo…

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## [Unable to store information in cloudant](https://discourse.nodered.org/t/unable-to-store-information-in-cloudant/12349)

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**Author:** [@leftShark2019](https://discourse.nodered.org/u/leftShark2019)\
**Replies:** 0\
**Last updated:** [18 June 2019 00:18 UTC](https://discourse.nodered.org/t/unable-to-store-information-in-cloudant/12349 "2019-06-18T00:18:08Z")

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I've read through several pages of background docs, I have a cloudant database provisioned, I've successfully made a function that takes a photo with camerapi and a flow that converts that photo data to cloudant readable…

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