hi guys,
i really need some help with this
i want to control mp3 push buttons using pic
i tried to use transistors as switches instead of push buttons,
1st i measured how much volt each button has on its terminal and it was like this
2.55v
2.60v
2.65v
one for each,
2nd i determined positive and negative terminals of each button
--
i used a uln2003a and on another test i used separated 2222a transistors
in both experiments
something goes wrong
first let me say that i soldered wire out of each push button so i can easily control it
and for every one to know, if i but the two wire that come out from each button it acts exactly as it should act, but this is done by hand
i wanted to do this using pic so i had to use transistors so i can control using 0's and 1's
---
to make the problem clear now, when i connect everything correctly, and send signal to the transistor to allow the volt to flow between the buttons terminal it reacts differently,
meaning if it is a move forward button it doesn't do that instead it increases the volume !!!
it acts completely different like if there is mis-functionality !!
---
it might be an increase or decrease of voltage problem
but could the transistor take of gave some extra voltage when it acts as a switch ?
and is there any different component that i can use instead of transistor and push button and still controllable by pic ?!?!
please help with this
AFAP
i really need some help with this
i want to control mp3 push buttons using pic
i tried to use transistors as switches instead of push buttons,
1st i measured how much volt each button has on its terminal and it was like this
2.55v
2.60v
2.65v
one for each,
2nd i determined positive and negative terminals of each button
--
i used a uln2003a and on another test i used separated 2222a transistors
in both experiments
something goes wrong
first let me say that i soldered wire out of each push button so i can easily control it
and for every one to know, if i but the two wire that come out from each button it acts exactly as it should act, but this is done by hand
i wanted to do this using pic so i had to use transistors so i can control using 0's and 1's
---
to make the problem clear now, when i connect everything correctly, and send signal to the transistor to allow the volt to flow between the buttons terminal it reacts differently,
meaning if it is a move forward button it doesn't do that instead it increases the volume !!!
it acts completely different like if there is mis-functionality !!
---
it might be an increase or decrease of voltage problem
but could the transistor take of gave some extra voltage when it acts as a switch ?
and is there any different component that i can use instead of transistor and push button and still controllable by pic ?!?!
please help with this
AFAP