- #1
Twinfun2
- 32
- 0
Hey Everybody!
I have been using this page as a guideline to learning how to use a 555 timer:
http://www.kpsec.freeuk.com/555timer.htm
I have been trying to make an LED flasher by using a 555 Timer for the first time, but after 2 days, I have been unable to see my problem. I am using the astable mode schematic seen in the astable mode section of the page I have been using. I am using C = 10uF Capacitor,
R1 = 10k, and R2 = 100k. I understand that this should yield about 40 blinks by the light according to the chart I am using.
My problem is that after I build the circuit onto my breadboard, the light constantly stays on, and does not blink. I have also noticed that the 555 gets terribly hot, but I have no idea why. Also, I saw posts with people who were able to get voltage ratings on each pin. How would I do that, and is an analog multimeter accurate enough?
Thanks in advance! Don't hesitate to ask me any necessary questions.
Brandon
I have been using this page as a guideline to learning how to use a 555 timer:
http://www.kpsec.freeuk.com/555timer.htm
I have been trying to make an LED flasher by using a 555 Timer for the first time, but after 2 days, I have been unable to see my problem. I am using the astable mode schematic seen in the astable mode section of the page I have been using. I am using C = 10uF Capacitor,
R1 = 10k, and R2 = 100k. I understand that this should yield about 40 blinks by the light according to the chart I am using.
My problem is that after I build the circuit onto my breadboard, the light constantly stays on, and does not blink. I have also noticed that the 555 gets terribly hot, but I have no idea why. Also, I saw posts with people who were able to get voltage ratings on each pin. How would I do that, and is an analog multimeter accurate enough?
Thanks in advance! Don't hesitate to ask me any necessary questions.
Brandon