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Step 2Breadboard it
Break out the breadboard and proto it up.
555 Timer
Pin 1- To Ground
Pin 2- Jumper to Pin 6, Jumper to Base of NPN
Pin 3- 33k resistor to base of NPN
Pin 4- Jumper to Pin 8
Pin 5- NC
Pin 6-Jumper to Pin 2
Pin 7-NC
Pin 8-Jumper to Pin 4, Connected to Positive voltage
Emitter of NPN to 470ohm resistor to LED
Base of NPN to + side of cap, then ground - side
Collector of NPN to + voltage
555 Timer
Pin 1- To Ground
Pin 2- Jumper to Pin 6, Jumper to Base of NPN
Pin 3- 33k resistor to base of NPN
Pin 4- Jumper to Pin 8
Pin 5- NC
Pin 6-Jumper to Pin 2
Pin 7-NC
Pin 8-Jumper to Pin 4, Connected to Positive voltage
Emitter of NPN to 470ohm resistor to LED
Base of NPN to + side of cap, then ground - side
Collector of NPN to + voltage
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Sep 28, 2011. 2:05 AMAnthony_Uk
says:
Hi. The text description doesn't seem to match the schematic - For instance, Pin2 and 3 are not going to the NPN in the diagram, and your text only has one leg of the LED wired.
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Jan 4, 2011. 12:07 PMcoleyy
says:
is this the right way to hook up the 100k potentiometer?
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