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Re: Getting started with Node Red

 

开云体育

Thanks for the feedback Fred.

?

I have to admit, I do not know JS. Everything I have done in Node Red I have been able to figure out or learn from Google searches and loading example flows from different sites I found using Google.

?

It is really a 3 step process in creating a flow:

  • Getting the data into Node Red
  • Manipulating the data into format for viewing
  • Laying out the dashboard to display data

?

There are tutorials on using the Raspberry OS via telnet (terminal) and/or VNC or local desktop to Pi (monitor keyboard and mouse connected to Pi). I’ll try to ferret out a good video and provide a link.

?

I think the next Zoom session we could work on building a couple of flows. One for getting and sending info to a device and another for controlling simple relays. I actually saw a video online the other day where the author used 3 relays to create a traffic light system. It was very good in explaining how to wire things up.

?

73

Dave wo2x

?

?

From: [email protected] <[email protected]> On Behalf Of wa9mvz via groups.io
Sent: Thursday, January 28, 2021 8:51 AM
To: [email protected]
Subject: Re: [nodered-hamradio] Getting started with Node Red

?

Alan, Dave ... thanks for the Zoom meeting last night. I appreciate your taking the time to host that.?
I have a very extensive? multi-state remote radio system in place and have been remoting since the 1990's. As automated as I am, I often have to bring up multiple systems. There is an appealing elegance to the Node Red dashboards I'd seen.? I was attracted to Node-Red for the control simplicity it offered.

I had a steep learning curve over the past few days to get where I am on Node-Red. I have done a lot of work with Arduino and C++, but I've never played with an OS, the RPi or JavaScript. In future lessons, you might help others along by realizing that there are really 4 steps to mastering this for someone like me (an RF engineer):

1. Learn how to run the Rasberry Pi itself. How to interface to a terminal, etc.?
2. How to load and run the OS.?
3. Learn how to load simple flows in Node-Red using GPIO interfaces.?
4. Learn programming in JavaScript and building the dashboard.

Most Node-Red "beginner" tutorials assume you already know steps 1,2, and 4. That was not the case for me. I felt there was a lack of mid-level tutorials out there. For example, I could find little about how to build and arrange a dashboard. Your meeting last night filled that gap and got me heading in the right direction.?

That said, sometimes the only way to drink from a fire hose is to start drinking.

Thanks for making yourselves available to true beginners and for your patience.?

Fred
K9SO

Re: File /Spot Call and Name.json uploaded #file-notice

 

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ACLog
?
?

Sent: Thursday, January 28, 2021 4:07 PM
Subject: Re: [nodered-hamradio] File /Spot Call and Name.json uploaded #file-notice
?
Hi Ed.?? Yes, it will show up on the M's front panel.
?
What kind of logging software do you use?
?
Alan
?
Re: File /Spot Call and Name.json uploaded #file-notice

 

Hi Ed. ? Yes, it will show up on the M's front panel.

What kind of logging software do you use?

Alan

On Thu, Jan 28, 2021 at 4:56 PM Edward Dowdy <ka9ees@...> wrote:
Can we do that with the front panel of an M model?
?
Ed, KA9EES
?
Sent: Thursday, January 28, 2021 12:07 PM
Subject: Re: [nodered-hamradio] File /Spot Call and Name.json uploaded #file-notice
?
I have a short memory retention time and needed aid to show me the Name and Call Sign of the ham I was having a QSO with.

Last night, Dave explained that we can receive the UDP broadcasts from our various Ham apps and use the results in Node-Red.? In this case, I am taking the UDP broadcast from MacLoggerDX' "Lookup", parsing out the contact's Name and Call sign.? I then wrote functions to build the command to display the "Name>Call Sign" as a spot on the panadapter.

So...When I use my logging software to look up the info on QRZ.com of the other ham, his/her name will be shown on my panadapter on the TX frequency, until I look up a new call or when I trigger the "remove all spots" function.

Mine is set up for MacLogger DX.? You will need your own connector to extract Name and Call from other popular Logging Applications.? I am sure Dave and/I could help/write the adapters....just ask.

Here is a screenshot of my Maestro's Panadapter.

Alan. WA9WUD
Re: File /Spot Call and Name.json uploaded #file-notice

 

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Can we do that with the front panel of an M model?
?
Ed, KA9EES
?

Sent: Thursday, January 28, 2021 12:07 PM
Subject: Re: [nodered-hamradio] File /Spot Call and Name.json uploaded #file-notice
?
I have a short memory retention time and needed aid to show me the Name and Call Sign of the ham I was having a QSO with.

Last night, Dave explained that we can receive the UDP broadcasts from our various Ham apps and use the results in Node-Red.? In this case, I am taking the UDP broadcast from MacLoggerDX' "Lookup", parsing out the contact's Name and Call sign.? I then wrote functions to build the command to display the "Name>Call Sign" as a spot on the panadapter.

So...When I use my logging software to look up the info on QRZ.com of the other ham, his/her name will be shown on my panadapter on the TX frequency, until I look up a new call or when I trigger the "remove all spots" function.

Mine is set up for MacLogger DX.? You will need your own connector to extract Name and Call from other popular Logging Applications.? I am sure Dave and/I could help/write the adapters....just ask.

Here is a screenshot of my Maestro's Panadapter.

Alan. WA9WUD
Re: File /Spot Call and Name.json uploaded #file-notice

 

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I’m famous!
(Or infamous)

;-)

Dave wo2x

Sent from my waxed string and tin cans.?

On Jan 28, 2021, at 1:07 PM, Alan Blind, WA9WUD <a.alan.blind@...> wrote:

?I have a short memory retention time and needed aid to show me the Name and Call Sign of the ham I was having a QSO with.

Last night, Dave explained that we can receive the UDP broadcasts from our various Ham apps and use the results in Node-Red. ?In this case, I am taking the UDP broadcast from MacLoggerDX' "Lookup", parsing out the contact's Name and Call sign. ?I then wrote functions to build the command to display the "Name>Call Sign" as a spot on the panadapter.

So...When I use my logging software to look up the info on QRZ.com of the other ham, his/her name will be shown on my panadapter on the TX frequency, until I look up a new call or when I trigger the "remove all spots" function.

Mine is set up for MacLogger DX. ?You will need your own connector to extract Name and Call from other popular Logging Applications. ?I am sure Dave and/I could help/write the adapters....just ask.

Here is a screenshot of my Maestro's Panadapter.

Alan. WA9WUD

<Spots - 1.jpeg>


<Spots - 2.jpeg>
Re: File /Spot Call and Name.json uploaded #file-notice

 

I have a short memory retention time and needed aid to show me the Name and Call Sign of the ham I was having a QSO with.

Last night, Dave explained that we can receive the UDP broadcasts from our various Ham apps and use the results in Node-Red. ?In this case, I am taking the UDP broadcast from MacLoggerDX' "Lookup", parsing out the contact's Name and Call sign. ?I then wrote functions to build the command to display the "Name>Call Sign" as a spot on the panadapter.

So...When I use my logging software to look up the info on QRZ.com of the other ham, his/her name will be shown on my panadapter on the TX frequency, until I look up a new call or when I trigger the "remove all spots" function.

Mine is set up for MacLogger DX. ?You will need your own connector to extract Name and Call from other popular Logging Applications. ?I am sure Dave and/I could help/write the adapters....just ask.

Here is a screenshot of my Maestro's Panadapter.

Alan. WA9WUD
File /Spot Call and Name.json uploaded #file-notice

[email protected] Notification
 

The following files have been uploaded to the Files area of the [email protected] group.

By: Alan Blind, WA9WUD

Description:
Node-Red Flow to "Spot" the Call Sign and Name of the Ham you lookup via QRZ.com via your favorite logging app. I have it set up to work with MacLoggerDX. Most logger programs will UDP broadcast the QSO info when you do a QRZ.com lookup and can be adapted to my flow. I am sure Dave or I can help others build the needed connectors....just ask.
Video of last night’s training for getting started with Node Red

 

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Hi all,

Thank you to the members that attended last night’s Zoom meeting on getting started with Node Red for ham radio.?

The video is now up on my YouTube channel. I did not edit the video so you will be able to see and hear everything from the presentation.?

Here is the link


73
Dave wo2x

Sent from my waxed string and tin cans.?
Re: Node Red Training - Getting Started After Loading Your Raspberry Pi

 

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Hi Ed

It is uploading to YouTube now. Then it needs to process so may take a couple of hours to complete.?

I will post a link when it is done.?

73
Dave wo2x

Sent from my waxed string and tin cans.?

On Jan 28, 2021, at 9:57 AM, Edward Dowdy <ka9ees@...> wrote:

?Let me know where the recording of it will be posted. I was having some servere ?neuropathic pain and had to leave early. I’d also like to apologize for not being ?muted when I entered. I’m still learning ?how to use my iPad. I had no idea how to mute it. I know now how it is done.

73,
Ed KA9EES?

Re: Node Red Training - Getting Started After Loading Your Raspberry Pi

 

Let me know where the recording of it will be posted. I was having some servere ?neuropathic pain and had to leave early. I’d also like to apologize for not being ?muted when I entered. I’m still learning ?how to use my iPad. I had no idea how to mute it. I know now how it is done.

73,
Ed KA9EES?
Re: Getting started with Node Red

 

Alan, Dave ... thanks for the Zoom meeting last night. I appreciate your taking the time to host that.?
I have a very extensive? multi-state remote radio system in place and have been remoting since the 1990's. As automated as I am, I often have to bring up multiple systems. There is an appealing elegance to the Node Red dashboards I'd seen.? I was attracted to Node-Red for the control simplicity it offered.

I had a steep learning curve over the past few days to get where I am on Node-Red. I have done a lot of work with Arduino and C++, but I've never played with an OS, the RPi or JavaScript. In future lessons, you might help others along by realizing that there are really 4 steps to mastering this for someone like me (an RF engineer):

1. Learn how to run the Rasberry Pi itself. How to interface to a terminal, etc.?
2. How to load and run the OS.?
3. Learn how to load simple flows in Node-Red using GPIO interfaces.?
4. Learn programming in JavaScript and building the dashboard.

Most Node-Red "beginner" tutorials assume you already know steps 1,2, and 4. That was not the case for me. I felt there was a lack of mid-level tutorials out there. For example, I could find little about how to build and arrange a dashboard. Your meeting last night filled that gap and got me heading in the right direction.?

That said, sometimes the only way to drink from a fire hose is to start drinking.

Thanks for making yourselves available to true beginners and for your patience.?

Fred
K9SO
Re: Node Red Training - Getting Started After Loading Your Raspberry Pi

 

Dave - perhaps there may be some interest in your Zoom on Front Range 6 Meter group?
Paul


On Thu, Jan 28, 2021 at 12:20 AM David De Coons wo2x <RocketNJ@...> wrote:
Just a reminder the training session on Zoom will start in 40 minutes @ 01:00 UTC.
8 p.m. Eastern Wednesday
5 p.m. Pacific Wednesday

Dave wo2x

Re: Node Red Training - Getting Started After Loading Your Raspberry Pi

 

Just a reminder the training session on Zoom will start in 40 minutes @ 01:00 UTC.
8 p.m. Eastern Wednesday
5 p.m. Pacific Wednesday

Dave wo2x
Re: Node Red Training - Getting Started After Loading Your Raspberry Pi

 

Dave

Thanks for freely sharing your time and expertise.? I will be joining the Zoom call to learn more.

John K3MA/VE3OZB
Re: Displaying the UI

 

Thanks ! This is starting to make sense.

73,
Steve, N2IC
Re: Displaying the UI

 

Steve

To see the flow's dashboard use a web browser: ? ?"IP of your Windows machine running Node-Red:1880/ui"

Alan

On Wed, Jan 27, 2021 at 12:53 PM Steve London <n2ic@...> wrote:
I'm a complete newbie to Node Red, so please bear with me...

I am currently running Node Red on Windows 10. It appears to be working.

I have imported WO2X's AG 2x8 flow. Why this one ? Because I have previously implemented the N1MM-to-AG functionality using VB.Net, so I have an idea on how the Node Red flow ought to work. I changed the port numbers and IP addresses to match my configuration. I deploy the flow, and it does something as I change bands (but not correctly switching the AG). The simple thing I don't know how to do is display this flow's UI so I might be able to see what is going on.

Thanks,
Steve, N2IC

Displaying the UI

 

I'm a complete newbie to Node Red, so please bear with me...

I am currently running Node Red on Windows 10. It appears to be working.

I have imported WO2X's AG 2x8 flow. Why this one ? Because I have previously implemented the N1MM-to-AG functionality using VB.Net, so I have an idea on how the Node Red flow ought to work. I changed the port numbers and IP addresses to match my configuration. I deploy the flow, and it does something as I change bands (but not correctly switching the AG). The simple thing I don't know how to do is display this flow's UI so I might be able to see what is going on.

Thanks,
Steve, N2IC
Re: Interest in Zoom presentation on loading nodes, flows and dashboard customizations?

Mike/W5JR
 

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Dave, I’m interested in your presentation. The Pi4 is up and running, I’ve been following the group with high interest and clearing my schedule to dive in. Let me know about the creds to join the Zoom this evening.?


tnx
Mike / W5JR
Alpharetta GA


On Jan 24, 2021, at 14:18, David De Coons wo2x <RocketNJ@...> wrote:

I am going to set up something for this Wednesday at 8 p.m. Eastern U.S. That is 1 a.m. Zulu.?

The intent is to record it so people that cannot attend can view the presentation at a later date.?

I will post a link on here probably tomorrow.?

73
Dave wo2x

Sent from my waxed string and tin cans.?

On Jan 24, 2021, at 1:55 PM, Santiago Mejia via <hi8smx@...> wrote:

?Dave, any update on the Zoom? I have a zoom acccount you can use if needed.
--
______________
73 de Santiago
HI8SMX - KB8SMX
web:?
YouTube: HI8SMX?
Twitter: @hi8smx
Instagram: hi8smx

Re: Interest in Zoom presentation on loading nodes, flows and dashboard customizations?

Andy K7AMB
 

Excellent, I plan to attend

Andy K7AMB?
Re: Interest in Zoom presentation on loading nodes, flows and dashboard customizations?

 

On Tue, Jan 26, 2021 at 04:47 PM, David De Coons wo2x wrote:
I know it is late for you so I will be recording the presentation and get it uploaded to YouTube.
I can upload it in my Youtube Channel too afterwards.
?
--
______________
73 de Santiago
HI8SMX - KB8SMX
web:?
YouTube: HI8SMX?
Twitter: @hi8smx
Instagram: hi8smx
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