# Latest **URL:** https://discourse.nodered.org/latest.md?page=556 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 557 --- ## [How do I use my project (code) in Node RED?](https://discourse.nodered.org/t/how-do-i-use-my-project-code-in-node-red/63463)
**Author:** [@wachcio](https://discourse.nodered.org/u/wachcio)\ **Replies:** 8\ **Last updated:** [8 June 2022 21:32 UTC](https://discourse.nodered.org/t/how-do-i-use-my-project-code-in-node-red/63463 "2022-06-08T21:32:05Z")
I want to use Node RED to control the Tasmota device that will turn on the heater. In Poland, where I come from, electricity is cheaper at certain hours and days and I want to use it. I wrote a project in Typescript (Git… --- ## [Proper placement & use of Delay node](https://discourse.nodered.org/t/proper-placement-use-of-delay-node/63616)
**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\ **Replies:** 2\ **Last updated:** [8 June 2022 19:08 UTC](https://discourse.nodered.org/t/proper-placement-use-of-delay-node/63616 "2022-06-08T19:08:49Z")
I have a Modbus temp controller that I have set up to poll every 1 second and send the data to our MQTT broker. I would like to use this same Modbus node to send data to InfluxDB every 30 seconds. To do this, I set up … --- ## [Sending emails from Node Red](https://discourse.nodered.org/t/sending-emails-from-node-red/63624)
**Author:** [@chapeco6](https://discourse.nodered.org/u/chapeco6)\ **Replies:** 4\ **Last updated:** [8 June 2022 19:03 UTC](https://discourse.nodered.org/t/sending-emails-from-node-red/63624 "2022-06-08T19:03:30Z")
Hi! Im trying to send an email from Node Red and it shows this error in the output. This is how I configured de Email node: I already watch some videos on youtube and did everything exactly the same as the video bu… --- ## [How to have two dropdowns from a CSV to find the corresponding value](https://discourse.nodered.org/t/how-to-have-two-dropdowns-from-a-csv-to-find-the-corresponding-value/63628)
**Author:** [@prodriguesjr](https://discourse.nodered.org/u/prodriguesjr)\ **Replies:** 7\ **Last updated:** [8 June 2022 18:32 UTC](https://discourse.nodered.org/t/how-to-have-two-dropdowns-from-a-csv-to-find-the-corresponding-value/63628 "2022-06-08T18:32:23Z")
Hello everyone I am fairly new to Node-RED and this is my first post on the forums! I found a similar problem, but it was a bit more simple and didn't work for my problem. I have two dropdowns that the user will select … --- ## [Geofence and Worldmap nodes](https://discourse.nodered.org/t/geofence-and-worldmap-nodes/63618)
**Author:** [@chapeco6](https://discourse.nodered.org/u/chapeco6)\ **Replies:** 1\ **Last updated:** [8 June 2022 17:57 UTC](https://discourse.nodered.org/t/geofence-and-worldmap-nodes/63618 "2022-06-08T17:57:47Z")
Hello, I have a geofence node and I wanna show it in the Worldmap node, but it doesnt show up. I already enable the option to show the output in the Worlmap node. And this is how I have the flow: --- ## [How to check for gauge clicks](https://discourse.nodered.org/t/how-to-check-for-gauge-clicks/63562)
**Author:** [@HuOliveiraWork](https://discourse.nodered.org/u/HuOliveiraWork)\ **Replies:** 4\ **Last updated:** [8 June 2022 17:50 UTC](https://discourse.nodered.org/t/how-to-check-for-gauge-clicks/63562 "2022-06-08T17:50:30Z")
Hello ereryone! I have a project with a list of gauges and I need to detect the individual click of each of them. I don't know the best way to do this, nor do I know if there is a library that will help me with this sit… --- ## [Control Heater using node-red](https://discourse.nodered.org/t/control-heater-using-node-red/63604)
**Author:** [@Lizzie](https://discourse.nodered.org/u/Lizzie)\ **Replies:** 1\ **Last updated:** [8 June 2022 14:18 UTC](https://discourse.nodered.org/t/control-heater-using-node-red/63604 "2022-06-08T14:18:56Z")
Hello, I have a raspberry pi which is connected to a solid-state relay bricklet. the following code describes how I turn off and on the heater. Is it possible to implement this on node-red? I want to control the temperat… --- ## ["Deploy" disabled after changes to node config using UI](https://discourse.nodered.org/t/deploy-disabled-after-changes-to-node-config-using-ui/63361)
**Author:** [@fabiobeoni](https://discourse.nodered.org/u/fabiobeoni)\ **Replies:** 9\ **Last updated:** [8 June 2022 13:48 UTC](https://discourse.nodered.org/t/deploy-disabled-after-changes-to-node-config-using-ui/63361 "2022-06-08T13:48:13Z")
Hello, I made a custom node with some config properties... When from the UI I change one value of the config and I press "Done", the Deploy button is not enabled. BTW my custom nodes receive the config values. Do I nee… --- ## [String to number with decimals (but without separator)](https://discourse.nodered.org/t/string-to-number-with-decimals-but-without-separator/63178)
**Author:** [@network\_potato](https://discourse.nodered.org/u/network_potato)\ **Replies:** 21\ **Last updated:** [8 June 2022 13:29 UTC](https://discourse.nodered.org/t/string-to-number-with-decimals-but-without-separator/63178 "2022-06-08T13:29:53Z")
I have a string in my payload that looks like this: totalPaid: "268.00" I need to convert it to a number, and remove the dot (while keeping the two decimals) Like this: totalPaid: 26800 Another example: totalPaid: … --- ## [Get list of flows with node detail](https://discourse.nodered.org/t/get-list-of-flows-with-node-detail/63567)
**Author:** [@arminder.lubana](https://discourse.nodered.org/u/arminder.lubana)\ **Replies:** 4\ **Last updated:** [8 June 2022 13:15 UTC](https://discourse.nodered.org/t/get-list-of-flows-with-node-detail/63567 "2022-06-08T13:15:19Z")
Hi team, we have one method in admin API is getFlows which return all the flows in json format but i want to get all the flows with nodes used in it in single request. Is it possible? --- ## [Geofencing - Node Red, Owntracks](https://discourse.nodered.org/t/geofencing-node-red-owntracks/63592)
**Author:** [@chapeco6](https://discourse.nodered.org/u/chapeco6)\ **Replies:** 4\ **Last updated:** [8 June 2022 12:46 UTC](https://discourse.nodered.org/t/geofencing-node-red-owntracks/63592 "2022-06-08T12:46:13Z")
Hey everyone, Im working on a project for school where I have to track when the user enters or leaves a certain area. Im using OwnTracks to get the coordinates to the broker and the node Geofence to get the valeu for "i… --- ## [Dashboard node-red](https://discourse.nodered.org/t/dashboard-node-red/62936)
**Author:** [@kursataydac](https://discourse.nodered.org/u/kursataydac)\ **Replies:** 1\ **Last updated:** [8 June 2022 12:24 UTC](https://discourse.nodered.org/t/dashboard-node-red/62936 "2022-06-08T12:24:51Z")
How can I enter data into node-redin dashboard and get output from notepad? --- ## [Modbus global configuration node server](https://discourse.nodered.org/t/modbus-global-configuration-node-server/63563)
**Author:** [@Aivaras1](https://discourse.nodered.org/u/Aivaras1)\ **Replies:** 5\ **Last updated:** [8 June 2022 11:28 UTC](https://discourse.nodered.org/t/modbus-global-configuration-node-server/63563 "2022-06-08T11:28:14Z")
Hi, Can I change modbus server with a command ? --- ## [Arduino USB \> Firmata \> I2C \> \[GPIO PCF8574 + MCP23017 + temp BMP280\]](https://discourse.nodered.org/t/arduino-usb-firmata-i2c-gpio-pcf8574-mcp23017-temp-bmp280/24281)
**Author:** [@PizzaProgram](https://discourse.nodered.org/u/PizzaProgram)\ **Replies:** 20\ **Last updated:** [8 June 2022 08:51 UTC](https://discourse.nodered.org/t/arduino-usb-firmata-i2c-gpio-pcf8574-mcp23017-temp-bmp280/24281 "2022-06-08T08:51:39Z")
My question is: What is the recommended way to connect multiple I2C boards to Arduino boards to: use both Ardu's GPIOs + the I2C expanders too? Is firmata standard suitable for that, or I need to specify the I2C boards… --- ## [Need help sending a payload array value to my controler](https://discourse.nodered.org/t/need-help-sending-a-payload-array-value-to-my-controler/63537)
**Author:** [@Xenos](https://discourse.nodered.org/u/Xenos)\ **Replies:** 3\ **Last updated:** [7 June 2022 22:18 UTC](https://discourse.nodered.org/t/need-help-sending-a-payload-array-value-to-my-controler/63537 "2022-06-07T22:18:04Z")
I can get my value from the web, and I can send values to my controller. however I can fugure out how to get the web value to my controller. What i need to do is get my msg.payload\[20\] or string\[11\] ( 5.21 / MWH) … --- ## [String to response code](https://discourse.nodered.org/t/string-to-response-code/63470)
**Author:** [@dmac101](https://discourse.nodered.org/u/dmac101)\ **Replies:** 7\ **Last updated:** [7 June 2022 22:10 UTC](https://discourse.nodered.org/t/string-to-response-code/63470 "2022-06-07T22:10:29Z")
Hi All, I am working on a bit of a side project where I am trying to monitor the status of a radio, with the final goal of using it to log signal level against GPS location. The uses a proprietary serial protocol that s… --- ## [Upload a file using OneDrive](https://discourse.nodered.org/t/upload-a-file-using-onedrive/63591)
**Author:** [@OscarF](https://discourse.nodered.org/u/OscarF)\ **Replies:** 0\ **Last updated:** [7 June 2022 21:47 UTC](https://discourse.nodered.org/t/upload-a-file-using-onedrive/63591 "2022-06-07T21:47:22Z")
Hi! I'm using a node to upload a file using OneDrive, I'm using the nodes by node-red-contrib-onedrive. When I'm uploading the file, in OneDrive I can see it but it is blank. Do you ever do it before? can you give me so… --- ## [NR subscribe and then republish MQTT](https://discourse.nodered.org/t/nr-subscribe-and-then-republish-mqtt/63552)
**Author:** [@droidblast](https://discourse.nodered.org/u/droidblast)\ **Replies:** 5\ **Last updated:** [7 June 2022 20:31 UTC](https://discourse.nodered.org/t/nr-subscribe-and-then-republish-mqtt/63552 "2022-06-07T20:31:49Z")
Is it bad or incorrect to use a public MQTT in this case HiveMQ to a local MQTT? I am subscribing to a external SIM7600 ESP that sends data via 4G to HiveMQ (public 1883) then using NR to read this MQTT and resend to a … --- ## [Server ui workspace is blank](https://discourse.nodered.org/t/server-ui-workspace-is-blank/63583)
**Author:** [@ire\_14r](https://discourse.nodered.org/u/ire_14r)\ **Replies:** 3\ **Last updated:** [7 June 2022 20:15 UTC](https://discourse.nodered.org/t/server-ui-workspace-is-blank/63583 "2022-06-07T20:15:48Z")
Hello, I reopened a simple projet I have been working on, and the server workspace is blank, not loading. I have reinstalled node-red and node.js, and cannot find where the problem comes from, it was working just fine l… --- ## [Show satellite map? (Central Europe - pizza delivery)](https://discourse.nodered.org/t/show-satellite-map-central-europe-pizza-delivery/63585)
**Author:** [@PizzaProgram](https://discourse.nodered.org/u/PizzaProgram)\ **Replies:** 3\ **Last updated:** [7 June 2022 19:33 UTC](https://discourse.nodered.org/t/show-satellite-map-central-europe-pizza-delivery/63585 "2022-06-07T19:33:23Z")
Maybe this is a bit off-topic, sorry for that. I would like to show positions of the pizza-delivery boys (cars) on an OpenStreetMap, but doing it with satellite pictures. (I don't like "ggl.map" pricing.) (It seems muc… --- ## [Pi, Level shifter, ADS1115, MPX differential sensor wiring questions](https://discourse.nodered.org/t/pi-level-shifter-ads1115-mpx-differential-sensor-wiring-questions/63427)
**Author:** [@WBr](https://discourse.nodered.org/u/WBr)\ **Replies:** 31\ **Last updated:** [7 June 2022 19:13 UTC](https://discourse.nodered.org/t/pi-level-shifter-ads1115-mpx-differential-sensor-wiring-questions/63427 "2022-06-07T19:13:01Z")
I have a question about reading data from a 5V sensor. I am using a MPX53DP (ADS1115 and levelshifter) I got told that this analog signal needs to be digital and lover than 5V so Pi can handle it. The way I did the… --- ## [UDP Netvar data to JSON for InfluxDB2](https://discourse.nodered.org/t/udp-netvar-data-to-json-for-influxdb2/63521)
**Author:** [@bceyresy](https://discourse.nodered.org/u/bceyresy)\ **Replies:** 12\ **Last updated:** [7 June 2022 18:31 UTC](https://discourse.nodered.org/t/udp-netvar-data-to-json-for-influxdb2/63521 "2022-06-07T18:31:21Z")
Hi, How can I get the data from tis string back to JSON so I can put the values with the heading into InfluxDB, also without the "REAL" {"0":\["Fan01\_BoolP","REAL "\],"1":\[" Fan01\_Power","REAL",0\],"2":\["Fan01\_Current ","… --- ## [JSONata bug? how come 0.1 \> 0.1 returns true?](https://discourse.nodered.org/t/jsonata-bug-how-come-0-1-0-1-returns-true/63252)
**Author:** [@bogorad](https://discourse.nodered.org/u/bogorad)\ **Replies:** 11\ **Last updated:** [7 June 2022 17:17 UTC](https://discourse.nodered.org/t/jsonata-bug-how-come-0-1-0-1-returns-true/63252 "2022-06-07T17:17:58Z")
Am I missing something? This is from try.jsonata.org but it certainly is the same in Node-red. This should be 'false', right? --- ## [Show images from a template](https://discourse.nodered.org/t/show-images-from-a-template/63493)
**Author:** [@a45293](https://discourse.nodered.org/u/a45293)\ **Replies:** 22\ **Last updated:** [7 June 2022 16:25 UTC](https://discourse.nodered.org/t/show-images-from-a-template/63493 "2022-06-07T16:25:16Z")
im trying to display all images from a src but my template just display the last one, my template: \Image not found My debug show this: Can someo… --- ## [Retrieving both values from dropdown](https://discourse.nodered.org/t/retrieving-both-values-from-dropdown/63574)
**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\ **Replies:** 9\ **Last updated:** [7 June 2022 16:14 UTC](https://discourse.nodered.org/t/retrieving-both-values-from-dropdown/63574 "2022-06-07T16:14:51Z")
I am using a standard ui\_dropdown widget, populated from a function which sets msg.option but for my use case I need to get (from the output) both selected label AND value, not just value. Is there any way to achieve th… --- ## [How to export / import a whole node-red project?](https://discourse.nodered.org/t/how-to-export-import-a-whole-node-red-project/63575)
**Author:** [@hunterhb](https://discourse.nodered.org/u/hunterhb)\ **Replies:** 8\ **Last updated:** [7 June 2022 15:46 UTC](https://discourse.nodered.org/t/how-to-export-import-a-whole-node-red-project/63575 "2022-06-07T15:46:47Z")
Hello experts, I programmed a pool control in node-red. Now I want to export the complete project to a new Raspberry Pi 4. I try to do this by exporting all flows and importing them again in the new RPI4. However, the d… --- ## [MSSQL and MySQL timestamp issue](https://discourse.nodered.org/t/mssql-and-mysql-timestamp-issue/63557)
**Author:** [@ALIEN](https://discourse.nodered.org/u/ALIEN)\ **Replies:** 17\ **Last updated:** [7 June 2022 15:10 UTC](https://discourse.nodered.org/t/mssql-and-mysql-timestamp-issue/63557 "2022-06-07T15:10:41Z")
Dear friends, Hello, its been a while that I'm checking my database and I noticed that the stored data in each table has a common issue! The problem is, in flows, data is colllecing from Modbus read every 2 second and s… --- ## [Connecting to Node RED Raspberry Pi dashboard shows an unsecure connection on both Pi and PC](https://discourse.nodered.org/t/connecting-to-node-red-raspberry-pi-dashboard-shows-an-unsecure-connection-on-both-pi-and-pc/63578)
**Author:** [@idkwhatimgoing](https://discourse.nodered.org/u/idkwhatimgoing)\ **Replies:** 3\ **Last updated:** [7 June 2022 14:30 UTC](https://discourse.nodered.org/t/connecting-to-node-red-raspberry-pi-dashboard-shows-an-unsecure-connection-on-both-pi-and-pc/63578 "2022-06-07T14:30:11Z")
Node-RED version: v2.2.2 Node.js version: v14.19.3 After installing Node RED on my Raspberry Pi A+ using the installation command and configuring the inital options when I tried to open the dashboard it would bring up… --- ## [High CPU usage for a (mostly) simple flow](https://discourse.nodered.org/t/high-cpu-usage-for-a-mostly-simple-flow/63548)
**Author:** [@CRCinAU](https://discourse.nodered.org/u/CRCinAU)\ **Replies:** 9\ **Last updated:** [7 June 2022 14:17 UTC](https://discourse.nodered.org/t/high-cpu-usage-for-a-mostly-simple-flow/63548 "2022-06-07T14:17:15Z")
So, this is my flow: \[ { "id": "b7765500.4889a8", "type": "subflow", "name": "Iterate", "in": \[ { "x": 220, "y": 219, "wire… --- ## [Trouble to use PID Autotune](https://discourse.nodered.org/t/trouble-to-use-pid-autotune/63573)
**Author:** [@McRMX](https://discourse.nodered.org/u/McRMX)\ **Replies:** 0\ **Last updated:** [7 June 2022 13:00 UTC](https://discourse.nodered.org/t/trouble-to-use-pid-autotune/63573 "2022-06-07T13:00:04Z")
Hi All ! I meet some trouble to use node-red-contrib-pid-autotune. If someone can share his flow to show me how it work ? Thanks [Previous page](https://discourse.nodered.org/latest.md?page=555) [Next page](https://discourse.nodered.org/latest.md?page=557)