Circuit Playground 2.1.5 - App Store

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About Circuit Playground

Circuit Playground simplifies electronics reference & calculation - so you can have more fun hacking, making, & building your projects. Features: . Calculate component values for Op Amp, 555, RC Filter, Resistor Divider...

Circuit Playground simplifies electronics reference & calculation - so you can have more fun hacking, making, & building your projects. Features: . Calculate component values for Op Amp, 555, RC Filter, Resistor Divider circuits & more . 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 . Detect a magnet's polarity . Show off your project by submitting pics to Adafruit's Show & Tell . Access exclusive deals from Adafruit Industries All that, plus more functions & enhancements to come!

Version History Improved support for iOS 14 2.1.5 09/03/2021 Better support for iOS13 Fixed a typo in the resistor divider equation 2.1.4 02/18/2020 - Ohm's Law module: now the default state shows value symbols instead of units - Capacitor codes: fixed problem entering decimal values - Minor bug fixes and improvements 2.1.3 05/15/2018 Magnet pole detector 2.1.2 03/22/2018 Magnet Pole Detector updated for iPad Mini General improvements and bug fixes 2.1.1 03/19/2018 Added a Magnet Pole Detector General improvements and bug fixes 2.1.0 03/17/2018 Improved support for iOS 11 and iPhone X General improvements and bug fixes 2.0.3 12/22/2017 Number Converter: fixed incorrect behaviour for decimal and hexadecimal inputs 2.0.2 09/14/2017 - Fixed temperature units bugs for "Trace Width" and "VREG Temperature" modules 2.0.1 08/21/2017 • UI updates, optimizations & bugfixes throughout the app • New pinouts for Adafruit boards 2.0 07/28/2017 New Features • PDFs can now be opened in Circuit Playground via iOS's "Open in…" button • Imported PDF files are saved to Circuit Playground's Documents folder Bugfixes & Improvements • CapCodeCalc pF label corrected (iPhone) • All OpAmp Calcs show circuit name in top bar (iPad) • Optimized standard values in LED Resistor Calc • Resistor Divider equation corrected • Differentiator Calc warnings shown with saved values (iPad) • Toolbar always visible after using Datasheet Viewer (iPhone) • USB-A pinout illustration updated pin offset 1.7 03/08/2013 • LED Resistor Calc now provides power rating • Bugfix for Ohms Law Calc sometimes truncating current value • Bugfix for LED Resistor Calc value saving on iPhone 1.6.3 12/12/2012 • Increased Show & Tell photo sizes on non-retina devices • Improved UI functionality in Show & Tell module • Fix for incorrect scrolling height in Pinouts module • Fix for some Wavelength Calc values not showing in Dark UI • Fix for iPad index display after orientation change 1.6.2 11/20/2012 New Features: • Support for iPhone 5 display • All calculators retain input values & reset via Options menu • Multi Resistor & Capacitor calcs share values between modes • Updated UI elements Bugfixes: • 555 Calc min & max frequencies • Number Converter ASCII input • Add'l fixes & improvements 1.6.1 10/17/2012 • Resistor Divider Calculator • Heat Sink Calculator • Wavelength to Color Converter • Trace Width Calculator • Quarter Wave Calculator • New Pinouts for connectors, ICs, & boards • Send multiple pics + video with Show & Tell • Camera items are saved to photo library • Support for iOS 6 Note: This update requires iOS 4.3 or later 1.6 09/18/2012 • Op Amp Circuit Calculators - 8 new circuits for design & reference • Op Amp Pinout Reference • Show & Tell - submit & share your projects pics with Adafruit • Touch input for calculator schematics • Plus many more functional & visual enhancements 1.5 07/18/2012 • Bug fix for RC Filter Calc's High Pass mode displaying incorrect unit label • Bug fix for zero value input errors on 555 Calc & RC Filter Calc, plus relevant alert views • Added alert view for component count fields in Multi Resistor & Capacitor Calcs • Minor UI tweaks 1.1.1 05/01/2012 New Features: • RC Filter Calculator • 555 Timer Calculator • Microcontroller Reference • Graphics updated for iPad Retina displays • New index menu for iPhone • Relevant equations displayed for all calculators Bugs Fixed: • Visibility of Multi Cap count while editing on iPhone • Total displayed prematurely in Multi Cap Calculator • Additional fixes & optimizations 1.1 04/21/2012 • Improved support for multiple region formats • Clear buttons now available for text fields • Additional tweaks & optimizations Thanks to everyone who provided feedback! 1.0.2 03/08/2012 • Support for region-specific decimal & grouping separators • Support for iPhone 3G & iOS 4.2 • Resistance fields now accept abbreviated input values • Fixed bug where CapCodeCalc returned incorrect values for some input formats • Fixed bug causing MultiResCalc & MultiCapCalc to sometimes load incorrectly • Prevented modules from loading simultaneously when selected in fast succession • Fixed bug where Datasheet Viewer's page bar was sometimes positioned incorrectly • Fixed bug causing ResCodeCalc to sometimes load with incorrect band mode + add'l tweaks/optimizations - and more to come! 1.0.1 02/21/2012 1.0 01/27/2012

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Previous Versions

Here you can find the changelog of Circuit Playground since it was posted on our website on 2016-09-24 05:16:31. The latest version is 2.1.5 and it was updated on 2026-06-23 07:53:55. See below the changes in each version.

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