Pixl.js SDA and SCL seems to be pointing to the wrong pins

Posted on Mon 20th, July 2020

• #1

parasquid
I was trying out the i2cdetect script by @MaBe by using: I2C1.setup({sda: SDA, scl: SCL}) and I was wondering why none of my I2C devices were being detected when I used the very same Pixl.js to develop the INA219 module.

Then I copied the example code I used for that module which had this setup: I2C1.setup({ sda: A4, scl: A5 });

I thought the SCL and SDA constants were pointing to the wrong pins, and it looks like they are:
```
|  __|___ ___ ___ _ _|_|___ ___
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 2v06 (c) 2019 G.Williams
>process.env
={
  VERSION: "2v06",
  GIT_COMMIT: "21168a2b",
  BOARD: "PIXLJS",
  FLASH: 524288, STORAGE: 36864, RAM: 65536,
  SERIAL: "e29d7f50-21853912",
  CONSOLE: "Bluetooth",
  MODULES: "Flash,Storage,hea" ... "el,graphical_menu",
  EXPTR: 536882640 }
>SDA
=D4
>SCL
=D5
```
D4 and D5 on the Pixl.js are digital pins.
• #2

Gordon

Hi - thanks for letting me know! Just fixed it - it'll be in the cutting edge builds, or 2v07 when released.

Post a reply
- Bold
- Italics
- Link
- Image
- List
- Quote
- code
- Preview
Formatting Help

Don't worry about formatting, just type in the text and we'll take care of making sense of it. We will auto-convert links, and if you put asterisks around words we will make them bold.

Tips:

Create headers by underlining text with ==== or ----

To *italicise* text put one asterisk each side of the word

To **bold** text put two asterisks each side of the word

Embed images by entering:
![](https://www.google.co.uk/images/srpr/logo4w.png)
That's the hard one: exclamation, square brackets and then the URL to the image in brackets.

* Create lists by starting lines with asterisks

1. Create numbered lists by starting lines with a number and a dot

> Quote text by starting lines with >

Mention another user by @username

For syntax highlighting, surround the code block with three backticks:

```
Your code goes here
```
Just like Github, a blank line must precede a code block.

If you upload more than 5 files we will display all attachments as thumbnails.

For a full reference visit the Markdown syntax.