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That makes a lot of sense! I pulled from github and wanted to make sure I had the most recent version of the IDE and couldn't remember which save on send I had. Thanks for the great support. I can't wait to have the kids at STEM camp playing with these!

So I was starting to have some problems uploading code. Code looked like it went over; but it wasn't changing. I ran the following code:

>s = require("Storage")
=function () { [native code] }
>s.eraseAll()
=undefined

And then re-loaded my code over usb and no more memory errors. I am wondering if it is not cleaning itself out properly between loads with the newest version of the IDE (pulled from Git today)

That definitely helped with ram usage:

>process.memory()
={ "free": 833, "usage": 767, "total": 1600, "history": 7,
  "gc": 571, "gctime": 2.573 }

I was able to load the unminimized code (it previously failed to load where different levels of minimization would load; so i've been using it to test. I still get a message:

 ____                 _
|  __|___ ___ ___ _ _|_|___ ___
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 1v96.5 (c) 2018 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate
Flash map 4MB:1024/1024, manuf 0xc8 chip 0x4016
>
=undefined
Loading 14495 bytes from flash...
Execution Interrupted during event processing.
New interpreter error: LOW_MEMORY,MEMORY

But the code is loaded and stored.

Interesting...Saving the image to flash is definitely something that would be easy. I'm not sure if I want to build a custom image; since I would then have to keep parity with the official branch after I distribute them to the kids.

I'll try that.

Here is the response from my device on load:

 ____                 _
|  __|___ ___ ___ _ _|_|___ ___
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 1v96.5 (c) 2018 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate
Flash map 4MB:1024/1024, manuf 0xc8 chip 0x4016
>
=undefined
Loading 14495 bytes from flash...
Execution Interrupted during event processing.
New interpreter error: LOW_MEMORY,MEMORY

On Boot:

>process.memory()
={ "free": 603, "usage": 997, "total": 1600, "history": 1,
  "gc": 485, "gctime": 2.459 }

On connect to wifi:

>process.memory()
={ "free": 624, "usage": 976, "total": 1600, "history": 4,
  "gc": 73, "gctime": 2.527 }
>process.memory()

On start of ball bounce demo:

={ "free": 611, "usage": 989, "total": 1600, "history": 4,
  "gc": 146, "gctime": 2.581 }
> 

I'm using this ESP8266_4MB board with battery and oled screen . I am able to install my codebase with basic minification on, but get Low memory messages. I guess I will have to optimise a bit.

I plan to give these out at my schools summer STEM camp. Bought in bulk we can get it to around $10 a student with a battery and 3d print the case. I am writing a comprehensive demo to show them what they can do. It also makes sure I understand the platform; so I can answer questions. I just picked up JavaScript recently (Fitbit Ionic Development), so I am still getting comfortable with the language. I'll attach my demo so far.

Thanks! That seems to have done the trick!...I'm not sure how much more stuff I can stuff into it; but I should be able to finish a nice demo program that shows the capabilities of this board.

I saw that...I was hoping for an example of saving an entire javascript program into storage and then loading it and executing it. Would I create a helper program to save the .js file as a really long string then onInit() read it back out and then somehow execute the string as Javascript?

Edit: I think I'm on the same page as you now....I will try playing with that tonight.

Excellent! Is there anyway you could link to the example? I did a little searching but didn't see how to write executable code using the .write() command

So is there a way to get around the 10k source code size limit?

Is it possible to use the new Storage class to overcome the 10k limit for programs on the esp8266?

I WIN!!!

You have to set the pinMode explicitly.

pinMode(NodeMCU.D5, "input_pullup", false);

Now the buttons work properly!

It doesn't matter which assignment I use...at least I now know I have the R2 version of the board.

Also I now can use the Block Based IDE using the pins from that diagram.

No dice.

I was able to make your code work by changing it to D3 (one of the exposed IO), and touching the pin off to ground; so your code is good; but the on-board switch seems bad.

Edit: I changed the edge to "falling" and they now work once per boot...very odd

High School Programming, Electronics, and CD Printing Teacher

I have the LED and Screen Working; but the buttons are unreliable. I get a '1' when pressed the first time; but not after that...am I doing something wrong. I tried both

digitalRead(NodeMCU.D5)

and

NodeMCU.D5.read()

Same foro D6 and D7.

I am trying to use these for Students to use at STEM Camp this summer.