Tufty — a glorious blend of everything you love about Badger, now with a vibrant full-colour display and silky-smooth animation. Perfect for mini dashboards, fast-paced games, and eye-catching widgets.
Get your very own Tufty from https://shop.pimoroni.com/products/tufty-2350
About This Fork
This is a variant of the Tufty 2350 Badgeware, customized for US users with US-focused apps and regional settings. And apps for any region (customizable). Importantly, the 'dev' has no idea what he's doing. So YMMV, and YOLO.
- 2.8" 320×240 Full-colour IPS display
- RP2350 + 16MB flash + 8MB PSRAM
- WiFi + Bluetooth 5.2
- USB-C + 1,000mAh battery
- User + system buttons
- Four-zone rear lighting
- "Sciuridae Consultant" lanyard
- Badger - 2.7" 264×176 greyscale e-paper
- Blinky - 872 pixel LED display
- Tufty - 2.8" 320×240 full-colour IPS LCD
More details at https://badgewa.re
A silly way to keep an eye on your tickers. Most code borrowed from the Stocks App below.
A real-time US stock ticker for your badge. Track your favorite stocks with a glanceable display that's perfect for conferences, your desk, or just flexing your portfolio.
- Real-time prices from Finnhub API (free tier)
- Market status indicator (Open, Closed, Pre-Market, After Hours, Holidays)
- Smart refresh — fetches only when needed, respects API limits
- Multiple display sizes — cycle through 4 sizes from readable to GARGANTUAN
- Offline fallback — works with cached/mock data if WiFi unavailable
- Battery-friendly — slower refresh when market is closed
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Get a free API key from Finnhub (60 calls/min free tier)
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Connect badge to computer, double-tap RESET to enter disk mode
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Copy any of the apps folders into your own device's apps folder. https://github.com/gbgbgb8/tufty2350/tree/main/firmware/apps
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Edit
secrets.py:
WIFI_SSID = "YourNetwork"
WIFI_PASSWORD = "YourPassword"
FINNHUB_KEY = "your_finnhub_api_key"
TIMEZONE = -8 # Your UTC offset (e.g., -8 for Pacific, -5 for Eastern)
STOCKS = ["TSLA", "PLTR", "SPY", "QQQ"] # Your stock symbols- Safely unmount and reboot
| Button | Action |
|---|---|
| UP | Previous stock |
| DOWN | Next stock |
| A | Cycle display size (Large → Larger → Even Larger → GARGANTUAN) |
| B | System info screen (WiFi, IP, battery, market status) |
Press A to cycle through display sizes:
- Large (default) — Ticker, price, change %, market status
- Larger — Bigger ticker, all info visible
- Even Larger — Giant ticker and price, no market status
- GARGANTUAN — Massive ticker, price at bottom, nothing else
The app uses intelligent refresh logic to stay responsive while conserving battery and API calls:
| Data Age | Market Open | Market Closed | Action |
|---|---|---|---|
| < 1 minute | Fresh | Fresh | No fetch needed |
| 1-5 minutes | OK | OK | Display cached |
| > 5 minutes | Stale | — | Fetch with indicator |
| > 15 minutes | — | Stale | Fetch with indicator |
Background refresh: Non-displayed stocks refresh once per minute (one at a time) to stay reasonably current when you switch.
Startup sequence: Shows splash screen with progress bar while fetching initial data for all stocks.
- "refreshing..." — Currently fetching new data
- "! retry soon" — Last fetch failed, will retry automatically
- Pulsing price — Market is closed (after hours animation)
- Pulsing background — Market is open (green=up, red=down)
With default settings (4 stocks):
- Startup: ~5 API calls (market status + 4 stocks)
- Running: ~1-2 calls/minute average
- Well under Finnhub's 60 calls/min free tier limit
"! retry soon" showing?
- Check WiFi connection (press B for system info)
- Verify API key in secrets.py
- Finnhub may be temporarily unavailable
Prices not updating?
- Data younger than 1 minute won't refresh (by design)
- Market closed? Refresh interval increases to 15 minutes
- Check "Updated: Xs ago" on info screen (B button)
Wrong market hours?
- Set
TIMEZONEin secrets.py to your UTC offset - Example: Pacific = -8, Eastern = -5, UTC = 0
- Splash screen with progress bar during startup
- Smart refresh logic — only fetches when data is stale
- Background fetching — non-displayed stocks refresh gradually
- Market-aware timing — slower refresh when market closed (15 min vs 5 min)
- Fresh data protection — won't refetch data less than 1 minute old
- Error indicators — shows "! retry soon" on fetch failures
- Responsive UI — buttons always work, even during fetches
- 4 display sizes — cycle with A button
- Removed corner indicators — cleaner layout
- Market status at bottom — better visual hierarchy
- Vector-free rendering — uses pixel fonts only for compatibility
- Basic stock display with Finnhub API
- Market status from API
- WiFi connectivity
- Navigation between stocks