Reply to "Semaphore and 555 Timer Circuit"

rtr12OGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Here are the parts I used to make the traffic light circuit. I did this all on a bread board that I also got from Digi-Key.

Parts are all from Digi-Key, except the DC power supply which was from ebay and resistors were probably from Radio Shack. GRJ's power calculations would probably be plenty, I already had purchased a bunch of the 1 Amp power supplies on ebay.

Digi-Key

Item Digi-Key Part #

1N914 Diode - 1N914FS-ND

4017B Counter - 568-3080-5-ND

555 Timer - 296-1411-5-ND

10uf CAP - P1187-ND

1MEG Trimmer Pot - T93YB-1.0M-ND

ebay

Power Supply - AC/DC to DC Converter 1 Amp - From Ebay - Here's a link

The resistors used were all 1/4 watt.

I tried this again last night but it isn't working. My wife was talking to me the whole time so I probably have something missing or improperly connected. I will check it again later today. The 12 VAC note got me wondering, I'm sure that should be VDC. Will report back later. Arduino is definitely MUCH easier!

2/8/1512:52 PM

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