XAIO RP2040 I2C not working with MicroPython or the now default Arduino RP2040 core with Seed XAIO 2040

Community General Info - Guidance
#1

in “Seeed Studio XIAO RP2040 with MicroPython” ssd1306 example does not work. I belive it is due to the definition of the sda and scl pins (i tried 5 and 4 but this gives an error as well)

from ssd1306 import SSD1306_I2C
from machine import Pin, I2C
from time import sleep
i2c = I2C(1, scl=Pin(7), sda=Pin(6), freq=200000)#Grove - OLED Display 0.96" (SSD1315)
oled = SSD1306_I2C(128, 64, i2c)

Also cannot get I2C working with the Raspberry Pi Pico Arduino core by earlephilhower. I tried
Wire1.setSDA (D4);
Wire1.setSCL (D5);
Wire1.begin (SLAVE_ADDRESS);
but this does not work either.

How do I get I2C to work. Than you for your assistance

#2

Hi there,
Can you ty with the Pin numbers or GPIO pin numbers, Should work.
HTH
GL :slight_smile: PJ

#3

Working, Thank you.
Steve

#4

Awesome, Can you mark it as the solution, So others may find it… :grin: :v: