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featured
SparkFun
Buy sensors, boards, and kits, plus tutorials for electronics and Arduino-class builds
4.7
PaidRetail parts and kits; fre…
featured
Adafruit
Boards, sensors, and kits plus learn guides for electronics projects
4.8
FreeFree guides; hardware prices
| Spec | SparkFun | W3Schools | Adafruit |
|---|---|---|---|
| Category | Education & Learning | Education & Learning | Weird & Wonderful |
| Pricing | Retail parts and kits; free tutorials | Free + Plus | Free guides; hardware prices |
| Rating | 4.7 (24,000) | 4.6 (890,000) | 4.8 (54,000) |
| Community | 90/100 | 90/100 | 93/100 |
| Tier | featured | featured | featured |
| Best for | electronics, arduino, sensors, tutorials | tutorials, html, css, javascript | electronics, maker, sensors, kits |
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