XIAO + Expansion - Couple simple questions from a new user

Products & Technology XIAO
1

HI

I have just got a XIAO + Expansion Board. I am new to this device and a very novice Arduino programmer

Couple of questions if anyone would be so kind as to answer please?

  1. When I run an Arduino I2c scanner on the Xiao when it is connected to the expansion i get 2 devices found…the first at 0x3c which I am guessing is the onboard OLED? The second is at 0x51 - what is this device?

  2. if i install Circuit Python on the Xiao & then want to return back to Arduino how do i do this? The wiki only seems to tell me how to install Circuit Python not how to return to Arduino

2

It is the RTC.

{ 0x51, “PCF2129A RTC” }

3

Hi Reivilo

Nice to meet you - even if only in the virtual sense!!

many thanks for that info - will add it to my rapidly growing Xiao knowledgebase

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4

Hi dsssssssss9

You just open the Arduino IDE then upload any programme, it will back to Arduino mode.

Best regards
fenyi

5

Hi feny

Very kind of you to take the time to let me know… I really appreciate it

TTFN

DSSSSSSSSS(

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