Operation not permitted, I2C

[strdsk]

I cant use any I/O method from I2C, it says that operation not permitted. Even thought my device is connected to i2c?

I'm using the default i2c 0 pin (6 and 5) and my device (ssd1306) is clearly connected here. Reading from 0x3c results in error. Also trying to read all addresses but same results

const i2c0 = board.i2c(0)
for (let i = 0; i <= 0xff; i++) {
  try {
    const res = i2c0.read(1, i)
    console.log(`#${i} result:`, res)
  } catch (e) {
    console.log(`#${i} error:`, e)
  }
}

[strdsk]

Solved. The fault is on my part, it's the connection 🤦‍♂️.

[alexander-daniel]

what doy ou mean on the connection? the hardware?

[alexander-daniel]

@strdsk i am having a similar issue, but my wiring seems fine. How did you solve this? Thanks!

[alexander-daniel]

I've got:

• 3.3V from PICO -> VCC on PN532
• GND -> GND
• gp4 i2c0 sda on PICO -> sda on PN532
• gp5 i2c0 scl on PIC -> scl on PN532

const { I2C } = require("i2c");

const i2c = new I2C(0);

i2c.write(new Uint8Array(0x01, 0x02) , 0x48);

[alexander-daniel]

> .load
Error: Operation not permitted