Astable 555 timer - 8-bit computer clock - part 1

2016-03-17

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Our computer's clock is built using several 555 timers. The first is configured as an astable oscillator. See https://eater.net/bbcpu8-clock-module for more.

Part 2: /youtube/video/81BgFhm2vz8

Part 3: /youtube/video/WCwJNnx36Rk

Part 4: /youtube/video/SmQ5K7UQPMM

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You can get all the components used in this video from any online electronic components distributor for a few dollars.

Complete parts list (everything in this video):

1x 555 timer IC

1x 1MΩ potentiometer

2x 1kΩ resistors

1x 100kΩ resistor

1x 330Ω resistor

1x 2µF capacitor

1x 0.1µF capacitor

1x 0.01µF capacitor

1x LED

Solderless breadboard

22 gauge wire

USB charger and cable or some other 5v power source