A finance tab on the same wall panel that runs the house: Bitcoin, Ethereum, Solana, XRP, Dogecoin and Shiba Inu, each with a live price, change over 24 hours to all-time, and a sparkline. A featured chart you can scrub from a day to the whole history, and a live crypto news feed you can actually read on the panel. Prices come straight from public exchange APIs that need no key; the news is gathered by a tiny script on the Pi. Nothing paid, no key ever shipped to the browser.
A strip of cards across the top — each in the coin's own brand colour, with its price, the move over four windows (24 hours, 7 days, 30 days, 1 year) tinted green or red, and a one-year sparkline. Tap a card and it becomes the featured chart below.
Market-data APIs love to charge. This tab avoids all of it. Prices and candles come straight from Binance's public endpoints — no account, no key, and they allow cross-origin calls, so the browser reads them directly. The news is the tricky bit: crypto news APIs want keys and block browsers with CORS, so a tiny Python service on the Pi fetches a few RSS feeds every fifteen minutes and writes a small JSON file the panel reads locally.
The selected coin gets a big area chart with six timeframes — a day, a week, a month, a year, five years, and the coin's whole history on the exchange — each built from the right candle resolution so the line stays smooth. Alongside it, the news.
Hourly candles for the day, two-hourly for the week, daily out to a year, weekly for five years and the full history — so ALL reaches right back to the coin's first day on the exchange (Bitcoin to 2017), still in one clean line.
Thirty of the latest stories from Cointelegraph, CoinDesk and Decrypt — headline, source, how long ago, and the coin/topic tags — refreshed on the panel every few minutes.
Tapping a headline opens a full-page reader card inside the tab — image, summary and an "open original" button — instead of navigating the wall panel off to a news site with no way back. A small thing that makes a wall-mounted screen usable.
Six coins, a scrubable chart back to day one, and a news feed you can read without leaving the wall — all from public endpoints and a fifteen-line fetcher on the Pi, with no data subscription and no key ever leaving the house. The same self-hosted, no-cloud rule as everything else here, applied to money.