The PCjs simulation above is limited to a maximum simulated clock speed of 4.77Mhz. When the simulation isunlimited (click the “Fast” button twice), it can reach simulated clock speeds over 80Mhz (tested on a 3.4Ghz Intel Core i7). However, speed is very dependent on the browser. Safari performs best, initially reaching 60Mhz, and then after a minute or so, jumping to 80Mhz. Firefox and IE9/IE10 are more consistent, with speeds just over 60Mhz.
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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
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