Elektor Circuit: Touch Doorbell with 555
Basic Electronics

Elektor Circuit: Touch Doorbell with 555

Idea: Elektor Lab The great advantage of a touch button or switch is the absence of mechanical parts — what is not in it cannot be broken. Because old-fashioned doorbell push buttons are exposed to wind and weather, they become unreliable over time. So why not replace them with a...

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Fairchild LM555CMX : weekend die-shot
IC

Fairchild LM555CMX : weekend die-shot

Here is a nice die-shot of LM555CMX @ zeptobars.com Fairchild LM555CMX : weekend die-shot -...

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Basic Electronics – How to use a 555 Timer
Basic ElectronicsYoutube

Basic Electronics – How to use a 555 Timer

Do you want to know how to use a 555 timer? Laura brings you more Back to School tips and tricks on using this integrated circuit. Basic Electronics - How to use a 555 Timer -...

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How To Configure a 555 Timer IC
Basic Electronics

How To Configure a 555 Timer IC

Philip Kane @ jameco.com has published an article about the famous 555 timer IC and how to configure in monostable and astable modes. The 555 timer was introduced over 40 years ago. Due to its relative simplicity, ease of use and low cost it has been used in literally thousands of...

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Reverse engineering the popular 555 timer chip (CMOS version)
IC

Reverse engineering the popular 555 timer chip (CMOS version)

Ken Shirriff reverse engineer the CMOS version of 555 timer IC and explains how it works. This article explains how the LMC555 timer chip works, from the tiny transistors and resistors on the silicon chip, to the functional units such as comparators and current mirrors that make it...

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Reverse engineering the popular 555 timer chip
IC

Reverse engineering the popular 555 timer chip

Ken Shirriff wrote an article on reverse engineering the 555 timer chip, He writes: This article explains how the LMC555 timer chip works, from the tiny transistors and resistors on the silicon chip, to the functional units such as comparators and current mirrors that make it work....

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DC Motor Speed and Direction Controller
Motor

DC Motor Speed and Direction Controller

DC Motor Speed and direction controller project based on L293D H-Bridge and 555 Timer IC. 555 Generate PWM and L293D works as output driver. The 293D provides bidirectional drive current up to 600mA a voltage from 5V to 12V. L293D includes the output clamping diodes for...

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555 Timer Teardown
IC

555 Timer Teardown

Ken Shirriff has done a detailed teardown of the popular 555 timer IC. Let's take a look inside this little chip: Given the popularity of the 555 timer, I thought it would be interesting to find out what’s inside the 555 timer and how it works. While the 555 timer is usually sold...

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