after compiling sketch it shows the following error : WARNING: library MAX7219_Dot_Matrix-master claims to run on (avr) architecture(s) and may be incompatible with your current board which runs on (esp8266) architecture(s). Sketch uses 321488 bytes (64%) of program storage space. Maximum is 499696 bytes. Global variables use 29816 bytes (36%) of dynamic memory, leaving 52104 bytes for local variables. Maximum is 81920 bytes. Board Selected : Nodemcu 1.0
Hi Csongor :) if you really want to bring this display to its limits, look for the "md_parola" library (search for "parola arduino" on youtube or internet, it was ported to esp8266, too)... you can even make a shield for arduino uno to change effects and speed :)
I've been working on a project integrating these displays with MQTT. You can check out the source code at github.com/jptrsn/clock-message-board. It's a bit beyond the basics of the display, as it includes an HTU21D temp/humidity sensor and WS2812B LEDs as an MQTT JSON light component, suitable for use with Home Assistant.
This sounds great. I have created a neopixel based display project for myself as well. It works with Node Red and I love it. I have a separate video on that.
I'm working on a video explaining how to set up, build, and use this. It's using Node Red to interact with Google Play Music Desktop Player's API to get currently playing track, show rating information, etc. I've been following your work on Node Red for a while, and learned quite a bit from it!
plans on adding some basic web config, like tzapu's WiFiManager? So you can configure wifi and add custom parameters to modify the mqtt topic, for example, without recompiling... :) it's just great you used the Parola lib i suggested to Csongor in an other comment :)
Hello I bought the exact board you use but I am getting errors. I downloaded the version of arduino you are using, but I am getting errors. Can you please tell what settings you used to program your board and what code download link. I also have arduino boards uno and nano. Thank you. Great video.
Can we have this to Display Sensor details for a short while. Example: Display The door is open text when sensor is open. After a while switch back to native scrolling??
Hiya, thanks for sharing this video. If I'm using Wemo D1 mini, do i just connect to the same ESP pin as you have on your github? and the ino file will also work with it? Cheers
I got it working with ESP8266 wemo d1 mini! :) just wondering how can I now getting working with node red. can I use http request on this? I can see on the very bottom of the code, so can it work with http request then? // Handle HTTP server requests server.handleClient(); if you can point me to the right direction on any article that might make it work with node-red then that'd be great. cheers
@@unlock-er This project was done a long time ago, I don't have the project assembled any more. But yes, you can do that. Use a http request node, and just call the same URL that you see in the browser when you change the text.
This particular library I have used does not have orientation or graphics support. Just a simple text draw in this orientation. So you would have to use different library for horizontal mode.
@@csongorvarga Thank you for the feedback. I tried to enter in the URL in computer, but all browsers say it's not safe... After some days, I enter in the URL of my IP in my Cellphone and its works.
@@iSkullli Nowadays websites without security certificate are not considered to be safe. But in this case we are talking about a local device that you know about. You can usually click on a button (I think it is called Advanced) and the browser will show you an option like "connect anyway" So you can click that.
Hi, great Video - do you think its possible to assign certain text to a button and say button 1 is pressed " hello world " Displays? also can this be made waterproof?
Yes, why not. The nodeMCU has plenty of pins left you can program to do certain functions. For watetproofing probably the easiest if you find a suitable waterproof junction box. There are types which has clear top. And use cable glands to get the wires out were the water cannot get it. You can probably use waterproof buttons as well, although could be a bit expensive. Or use reed switches inside and can operate them using a magnet from outside the case.
@@csongorvarga Thanks makes sense, i want to add it to the back of my Motorbike jacket and add Buttons to my handlebars, Kinda like if someone is tailgating then I can send a message.. I like how portable youve made yours which is a great idea. I dont want to drain my battery plugging direct to the 12v
@@SteveN-ny4my Makes sense. This uses around 150mA, that is peanuts usage for a bike battery. I would not worry about that. So the challenge is to use a small enough clear box for this which fits the display and not too big. I would use a single multi core cable (e.g. network cable), use 2 wires for power and the other 6 wires are available for 6 buttons. And pass the cable into the box via a cable gland. Or cast the entire display in clear resin. Which makes it non-serviceable :)
@@Dancopymus I checked. There is a MAX7219_Dot_Matrix_font.h in the MAX7219 library that I use. That has characters defined up to code 256 which includes a lot of accented letters as well. The code may not be able to pick these up from the request when you set the text from the webpage, but it looks like most of them supported by the code.
I forgot to measure the power consumption, but I did it just now. I would say that this scroller draws about 200 mA on average. So a typical 5000 mAh power bank would last about 25 hours.
just ordered one... thanks for sharing
Bonne présentation, merci beaucoup...
Thank you for your review and thanks for sharing. Great Job on the video.
Thank you.
I like it!! I will Make one put in the rear of my car
Thanks for your awesome video project~~ :)
after compiling sketch it shows the following error :
WARNING: library MAX7219_Dot_Matrix-master claims to run on (avr) architecture(s) and may be incompatible with your current board which runs on (esp8266) architecture(s).
Sketch uses 321488 bytes (64%) of program storage space. Maximum is 499696 bytes.
Global variables use 29816 bytes (36%) of dynamic memory, leaving 52104 bytes for local variables. Maximum is 81920 bytes.
Board Selected : Nodemcu 1.0
It may he old but what is the answer to this error? Cheers
Hi Csongor :)
if you really want to bring this display to its limits, look for the "md_parola" library (search for "parola arduino" on youtube or internet, it was ported to esp8266, too)... you can even make a shield for arduino uno to change effects and speed :)
On the Wemos D1, the 5V connection is fused by a 0.5 A fuse. So, connecting this display to the 5V pin is maybe not a good idea.
I've been working on a project integrating these displays with MQTT. You can check out the source code at github.com/jptrsn/clock-message-board. It's a bit beyond the basics of the display, as it includes an HTU21D temp/humidity sensor and WS2812B LEDs as an MQTT JSON light component, suitable for use with Home Assistant.
This sounds great. I have created a neopixel based display project for myself as well. It works with Node Red and I love it. I have a separate video on that.
I'm working on a video explaining how to set up, build, and use this. It's using Node Red to interact with Google Play Music Desktop Player's API to get currently playing track, show rating information, etc. I've been following your work on Node Red for a while, and learned quite a bit from it!
Thanks, I am interested in your project. I am your 200th sub :)
+1! 202! :D
plans on adding some basic web config, like tzapu's WiFiManager? So you can configure wifi and add custom parameters to modify the mqtt topic, for example, without recompiling... :)
it's just great you used the Parola lib i suggested to Csongor in an other comment :)
Hello I bought the exact board you use but I am getting errors. I downloaded the version of arduino you are using, but I am getting errors. Can you please tell what settings you used to program your board and what code download link. I also have arduino boards uno and nano. Thank you. Great video.
why is the wifi not detected
What type of Arduino is that board where can I find one. Excellent video!
esp8266
Can we have this to Display Sensor details for a short while. Example: Display The door is open text when sensor is open. After a while switch back to native scrolling??
It is a completely bespoke code, so you can do anything you want with it.
Hello Can it fit the elevators to display a different message on each floor.
Is it possible to enter the floor number in binary code?
Well, it is your code, you can pretty much implement whatever you want.
Hiya, thanks for sharing this video. If I'm using Wemo D1 mini, do i just connect to the same ESP pin as you have on your github? and the ino file will also work with it? Cheers
I got it working with ESP8266 wemo d1 mini! :) just wondering how can I now getting working with node red. can I use http request on this? I can see on the very bottom of the code, so can it work with http request then?
// Handle HTTP server requests
server.handleClient();
if you can point me to the right direction on any article that might make it work with node-red then that'd be great. cheers
Yes, these pins are also on the D1 mini as well.
@@unlock-er This project was done a long time ago, I don't have the project assembled any more. But yes, you can do that. Use a http request node, and just call the same URL that you see in the browser when you change the text.
Can we stack led's vertically instead horizontal & display something like smiley or emoji?
This particular library I have used does not have orientation or graphics support. Just a simple text draw in this orientation. So you would have to use different library for horizontal mode.
Nowsdays it not working anymore to access the ip, could u help me?
Oh, this is a very old video, I don't have this hardware any more. What happened?
@@csongorvarga Thank you for the feedback. I tried to enter in the URL in computer, but all browsers say it's not safe... After some days, I enter in the URL of my IP in my Cellphone and its works.
@@iSkullli Nowadays websites without security certificate are not considered to be safe. But in this case we are talking about a local device that you know about. You can usually click on a button (I think it is called Advanced) and the browser will show you an option like "connect anyway" So you can click that.
im looking to build a library for the max7219 anyone has any experience in this?
Hi, great Video - do you think its possible to assign certain text to a button and say button 1 is pressed " hello world " Displays?
also can this be made waterproof?
Yes, why not. The nodeMCU has plenty of pins left you can program to do certain functions. For watetproofing probably the easiest if you find a suitable waterproof junction box. There are types which has clear top. And use cable glands to get the wires out were the water cannot get it. You can probably use waterproof buttons as well, although could be a bit expensive. Or use reed switches inside and can operate them using a magnet from outside the case.
@@csongorvarga Thanks makes sense, i want to add it to the back of my Motorbike jacket and add Buttons to my handlebars, Kinda like if someone is tailgating then I can send a message.. I like how portable youve made yours which is a great idea.
I dont want to drain my battery plugging direct to the 12v
@@SteveN-ny4my Makes sense. This uses around 150mA, that is peanuts usage for a bike battery. I would not worry about that. So the challenge is to use a small enough clear box for this which fits the display and not too big. I would use a single multi core cable (e.g. network cable), use 2 wires for power and the other 6 wires are available for 6 buttons. And pass the cable into the box via a cable gland. Or cast the entire display in clear resin. Which makes it non-serviceable :)
Csongor Varga thanks Man, ill get some bits together and see what I manage to get going :D Appreciate the help.
Best regards
First of all, thanks for the video tutorial.
How to use characters such as, Á, Ã, É, Ú, Ô, Ç, etc,?
Well, that could be a problem. I am not sure if the font supports special letters.
@@csongorvarga I agree with you but, a large part of the world uses these accented characters. There must be some library with these characters.
@@Dancopymus I checked. There is a MAX7219_Dot_Matrix_font.h in the MAX7219 library that I use. That has characters defined up to code 256 which includes a lot of accented letters as well. The code may not be able to pick these up from the request when you set the text from the webpage, but it looks like most of them supported by the code.
@@csongorvarga Hi Varga
No, the text entered on the webpage does not recognize any accents. It's a shame, is not it? Thank you
why not show in ip 192.168.1.85?
where the esp8266wifi.h library can found?
Have you set up your Arduino IDE for ESP8266? It is part of the ESP8266 libraries for the Arduino IDE.
how long does that battery last for it
I forgot to measure the power consumption, but I did it just now. I would say that this scroller draws about 200 mA on average. So a typical 5000 mAh power bank would last about 25 hours.
code please
Man, look at the video description. As I mentioned in the video.
I found the board.