Hello,
I'm looking for the absolute smallest Arduino compatible microcontroller there is, preferably with Bluetooth. I need enough pins to connect a button and I2C component.
Edit: I'm looking for a board less than 0.5 inches in width.
I found the boards linked below already, but I'm wondering if anyone knows of something smaller. Any help would be greatly appreciated. Thank you.
No links ?
And do you mean geniune Arduinos actually made by Arduino or do you mean 'Arduino compatible' boards ?
Hi, thank you for your response. My apologies, I accidentally pressed upload before I provided links. I am looking for the smallest Arduino compatible board.
Have you seen this one:
Thank you for providing that link, however I'm looking for a board less than 0.7 in width.
SEEED XIAO ESP32S3 is fairly small.
WiFi, Bluetooth. 10uA deep sleep running from battery.
So to stop people posting stuff that does no meet your requirements perhaps give us a full list of what you want ?
+1
I would ask if he wants common Bluetooth or BLE...
SEEED XIAO ESP32S3 seems to have only BLE.
My apologies, I updated the OP.
I'm looking for an Arduino compatible board that is less than 0.7 inches in width, preferably has Bluetooth connectivity, and has enough pins for a button and an I2C connection. If it doesn't have Bluetooth, I'd need enough pins to connect to a Bluetooth breakout board that also would need to be less than 0.7in. Thank you to everyone for the help thus far.
Edit: I should have put less than 0.5 inches.
My SEEED XIAO ESP32S3 is 0.697" wide
I should have put 0.5 inches in width. Thank you very much for taking the time to help and I apologize for not being more descriptive and accurate with my question.
Would I be able to connect an I2C device to this board?
There. I read the page for you. Yes. They note IIC as a feature. That's also known as I2C.
Okay, thank you for your help.
I2C, SPI, Serial, Analogue, Digital, Touch.
Thank you. I have another question: Would the Arduino BLE Library be compatible with this board? I tried looking for that information myself but I couldn't find anything.
Do note, it's still not meeting your 0.5" criterion. Was that a fantasy, then? Dimensions are 21 x 17.5mm; almost 0.7" wide.
It's likely that I do need a board 0.5 inches or less in width but I'm brainstorming a way to fit and utilize the SEEED XIAO ESP32S3 with my project for if I don't find anything smaller.
No idea, maybe ask in the SEEED forum.
Product Dimensions: 15.5mm x 10.5mm x 2.1mm / 0.6" x 0.4" x 0.1"
[edit]
My bad. This is just the module: you'll have to attach it to a board. I thought it seemed smaller than I expected.
Although, IIRC, the nRF52 series has pads on the bottom, so if you're super careful you could solder to them.