Enhance draft with Raspberry Pi Pico 2 details

Updated content to include details about a Raspberry Pi Pico 2 device that calculates Pi using MicroPython, along with a quote about the calculation method.

Author: TheKitty

_drafts/2026-01-12-draft.md

@@ -197,9 +197,12 @@ SMARS Mini is the teeniest, tiniest robot. It runs on a Pimoroni Tiny 2040 and M
 
 Agile Embedded Podcast talks with Matt Trentini, Principal Software Engineer at Planet Innovation, about using MicroPython for professional embedded development, including in medical devices - [Agile Embedded Podcast](https://agileembeddedpodcast.com/episodes/micropython-with-matt-trentini). Via [X](https://x.com/matt_trentini/status/2008375822776762683).
 
-[![title](../assets/20260112/20260112-name.jpg)](url)
+[![Pi calculation](../assets/20260112/20260112-name.jpg)](https://x.com/omiya_bonsai/status/2005701315150901626)
 
-text - [site](url).
+A device using a Raspberry Pi Pico 2, a display and MicroPython which continuously calculates Pi - [X](https://x.com/omiya_bonsai/status/2005701315150901626) (Japanese).
+
+> "For the calculation, I used the Nilakantha series (a simple series expansion). What it's displaying is not the value of π, but
+1) the number of reliable digits, 2) elapsed time, 3) digits per minute, and 4) calculation energy."
 
 [![title](../assets/20260112/20260112-name.jpg)](url)