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About Circuit Playground

Circuit Playground simplifies electronics reference & calculation so you can have more fun hacking, making, & building your projects.

• Calculate component values for Op Amp, 555, RC Filter, & Resistor Divider circuits
• Decipher resistor & capacitor codes with ease
• Calculate power, resistance, current, and voltage with Ohm's Law & Power Calculators
• Quickly convert between decimal, hexadecimal, binary or ASCII characters
• Calculate values for multiple resistors or capacitors in series or parallel
• Pinout diagrams for widely-used ICs, connectors, & boards
• Find color for LED wavelength
• Store, search, and view PDF datasheets
• Show off your project by submitting pics to Adafruit's Show & Tell
• Access exclusive deals from Adafruit Industries

All that, plus additional features & enhancements coming soon!

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Lots of useful and neat stuff all in one place.

Geoffrey Runyon

i found a spelling error

Smitch82

I'm loving it. Thanks

Alvin

If you can never remember how to calculate the frequency of pulses for the 555 timer you want this app. Plus it has things you didn't know you needed like the wavelength to color display for LEDs

Richard Kline

Crashing over and over

PGHS

I keep a stack of old notebooks around just to save notes and formulas for many of the same items covered by this app. this app may help to clean my office!

Luke Hindman