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Author Topic: 555 chip and timing pulse  (Read 192 times)
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Hi guys, I am building an LED binary clock, I was going to use the arduino pins 1-13 to control the clock but the program is too difficult for me to figure out. I am going to try a strictly mechanic approach. My first step is using the 555 to generate at 60HZ I have gathered I need a combination of resistors and capacitors to generate a charge and discharge. Does anyone have any idea of what combination I should use. I have 2 options 5v or 3.3V to come in as power
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Try this: http://houseofjeff.com/555-timer-oscillator-frequency-calculator/
« Last Edit: September 02, 2013, 06:07:21 pm by majenko » Logged

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http://lmgtfy.com/?q=I+tried+that+asshole%2C+I+just+didnt+understand+what+any+of+that+was...thank+you+for+your+infinite+wisdom
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I replaced that link some time back with a real one smiley-razz  Just enter "60" into the bottom box and it will give you the results.
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Why not visit my eBay shop? http://stores.ebay.co.uk/Majenko-Technologies
Replacement for the Arduino IDE: UECIDE - Proper serial terminal, graphing facilities, plugins, overhauled internals.
Java isn't bad in itself, but it has enabled morons to write programs.

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R/C time constant on a 555 is not gonna be real accurate, or consistant over time (the equation variables change with temp, etc.).  Think about a crystal controlled Real Time Clock circuit??
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