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@Gordon sorry for confusion, wrong copy paste, I am using SDD1306 as local module

SDD1306_I2C is just a SDD1306 without SPI, to shrink size

added some prints

>g.flip();
21
0
7f
22
0
7
new Uint8Array([64, 0, ...
new Uint8Array([64, 0, ...
new Uint8Array([64, 0, ...
new Uint8Array([64, 0, ...
new Uint8Array([64, 0, ...
new Uint8Array([64, 0, ...
new Uint8Array([64, 0, ...
new Uint8Array([64, 0, ...

@bigplik at the moment the OLED only shows wild dots...

o added pullups 4.7K
o it is completely ignoring any updates
o on and off cmd is working

@bigplik do you sometimes see lots of dots on oled instead of the object you requested to display ?

sorry don't know what format tags to use for code ?!

where using the correct tags but missed empty line, now it looks like code

I am working with a OLED over I2C and use module "SSD1306".
Some times I only see lots of dots instead my text, guess I have to add pullups (4.7K) to SDA and SCL.

this is what's working for me:

// running on esp8266, 1v85.MaBe_master_6c6dc46

I2C1.setup({sda:D4,scl:D5});

function go() {
 g.drawString("Hello World!",2,2);
 g.flip(); 
}

var g = require("SSD1306_I2C").connect(I2C1,go,{­height : 64,contrast : 127});

// switch disp off
I2C1.writeTo(0x3c,[0,0xAE);

// switch  disp on
I2C1.writeTo(0x3c,[0,0xAF]);

I definitely have to check more sides in the UK - thanks !

don't miss this nice and cheap ones
DIGI-DOT PANEL 8X8 HD MIT 64 X WS2812B-LEDS

Web IDE: maybe add some information to the icon bar like this

Yes, this would be very handy for devices like ESPs, hostname could be the mac or the last part of ip or something else.

thanks, found it in the file you mentioned, looks like that:

jsiConsolePrintChar('>'); // show the prompt 

Is it possible to change the prompt ">" to something like "hostname>" ?

Reading the latest reference, I would say no.

Could this be a feature for next releases ?

ups, yes I mean load()

can you please change the title ?

Is it planed to have clear() to erase saved program code ?

thanks, will try and update this conversation with my steps and results.

Is is possible to set a own vector font like setting a own bitmap font ?

yes, that's it - thanks.

      console.log("Temp is "+a.temp.toFixed(1).toString()+
                  " and RH is "+a.rh.toFixed(1).toString());
/*
Temp is 21.1 and RH is 38.9
Temp is 21.0 and RH is 38.9
Temp is 21.0 and RH is 39.0
Temp is 20.9 and RH is 39.1
*/

working fine on ESP, build version see test output

comments: I prefer a fixed result format, e.g. 999.9

pin=D4;
// latest version 14-Jan-2016 16:09
var dht22 = require("DHT22").connect(pin);

var dht22_read_test = function() {
  dht22.read(
    function(a){
      console.log("Temp is "+a.temp.toString()+
                  " and RH is "+a.rh.toString());
});};

setInterval(dht22_read_test,5000);


/* test output 

 1v84.tve_master_f35ac96 Copyright 2016 G.Williams
WARNING: the esp8266 port is in beta!
Flash map 4MB:512/512, manuf 0xe0 chip 0x4016
>echo(0);
=undefined
Temp is 19.9 and RH is 45.7
Temp is 19.9 and RH is 45.8
Temp is 19.9 and RH is 45.6
Temp is 19.9 and RH is 45.6
Temp is 19.9 and RH is 45.6
Temp is 19.9 and RH is 46
Temp is 19.9 and RH is 43.1
Temp is 19.8 and RH is 42.3
Temp is 19.8 and RH is 40.8
Temp is 19.7 and RH is 40.9
Temp is 19.5 and RH is 41.3
Temp is 19.4 and RH is 41.3
Temp is 19.2 and RH is 39.5
Temp is 19.1 and RH is 40.3
Temp is 18.9 and RH is 43.7
Temp is 18.7 and RH is 44.2
Temp is 18.2 and RH is 36.9
Temp is 17.9 and RH is 37.2
Temp is 17.7 and RH is 39.1
Temp is 17.4 and RH is 36.7
Temp is 17 and RH is 36.4
Temp is 16.6 and RH is 37.4
Temp is 16.3 and RH is 38.9
Temp is 15.9 and RH is 41.1
Temp is 15.6 and RH is 42
Temp is 15.3 and RH is 41
Temp is 14.8 and RH is 42.9
Temp is 14.8 and RH is 42.9
Temp is 14.6 and RH is 43.5
*/

I will test too over the weekend

works fine for me, if you like, use the short way to convert r to integer ;-)

...
r=getTime()*1e6|0;
...

on ESP8266 12E it is attached to the ADC pin, no input no value.

use

analogRead(D0)

NICE !

Question: shouldn't setTimeout("animate()",100); be outside of function animate() {} ?

Maybe you want to check this video as well APA102 RGB Pixel Addressable LED

, Julian Ilett is doing great stuff !

Or check this site digging-into-the-apa102-serial-led-proto­col on HACKADAY

@Ollie True, this one is better than any station without temp adjustment, so go and get one ;-)

Got one .....

yes it has a cheap potentiometer with min,1 to 5 x 100 °C , set to 2.5 and started some soldering

o wire is relative stiff
o pen is large and heavy, compared to Xytronic LF-3200
o no temp reached feedback
o soldering works fine, tried some SMD 1206 and one SO20

@Gordon will buy this MLX90614