Hi,
I am building a project found in the "Electronics for Dummies" pg 315 titled "When There's light, you hear this noise".
I am building it on a bread board and the idea is that when light hits the sensor a sound is made and when there is no light there is no sound, I have the oposite happening and I dont know what component needs to be switched for the desired result to happen.
The components are:
I am not sure what more information I should give to make it easier for someone to give advise.
Thanks in advance
Justin
I am building a project found in the "Electronics for Dummies" pg 315 titled "When There's light, you hear this noise".
I am building it on a bread board and the idea is that when light hits the sensor a sound is made and when there is no light there is no sound, I have the oposite happening and I dont know what component needs to be switched for the desired result to happen.
The components are:
- IC LM555 Timer
- 2N3906 PNP transistor
- 100k potentiometer
- resistors and capasitors (1 capacitor is polarised)
- and a speaker.
I am not sure what more information I should give to make it easier for someone to give advise.
Thanks in advance
Justin