Connect I2C Oled display to MDSB42Q?

[espruino-discuss]

Posted at 2022-10-23 by David1234321

Hello,
I'm trying to connect an Oled to my MDSB42Q - so it show messages on connect\disconnect

var i2c = new I2C();
i2c.setup({ scl : D20, sda: D19 });

is the setup OK?
and how do I send to him text
is there a library to download \ use?

Thanks ,

[espruino-discuss]

Posted at 2022-10-26 by @gfwilliams

The code there is ok for setting up I2C on the MDBT42Q, but without knowing anything about your OLED it's hard to help you.

Espruino has some libraries to connect to common OLED displays though, so if you have one of them ( https://www.espruino.com/Search?kw=oled ) then all you have to do is use the instructions and code there

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Posted at 2022-10-26 by David1234321

I'm using this device
128×64 OLED display module (SSD1306) , I will try

just to be ready
if I take the code:

function start(){
 // write some text
 g.drawString("Hello World!",2,2);
 // write to the screen
 g.flip();
}

// I2C
I2C1.setup({scl:B6,sda:B7});
var g = require("SSD1306").connect(I2C1, start);

it's should work ?
will change it to print if someone is connected or not

Thanks ,

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Posted at 2022-10-27 by @gfwilliams

Yes, that should work based on https://www.espruino.com/SSD1306 - but obviously you'll want to change the pin numbers to the pins you have used.

You could also try:

// ...
var i2c = new I2C();
i2c.setup({ scl : D20, sda: D19 });
var g = require("SSD1306").connect(i2c, start);

which uses software I2C - either should work

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Posted at 2022-10-27 by David1234321

Obviously :-)

it's working

thanks,