neko_whisker
New Member
Hi all,
I am having a knotty problem as to how to wire and isolate pins from pther pins.
Take a look at this pic below, I have drew up.
**broken link removed**
I have momentary switches S0, S1 ,S2 and S3.
And there are diodes to isolate any switches from other input pins if any one of them is switched on. Only specified switch is tunrned on for its own input pin. The reason why I used this method is to conserve power while lenthening the battery life.
The diagram looks okay except, I cannot think of way to isolate S0 from other SX when shdn is used to shut down power when it is shorted to ground while shdn is switced to 1.2V to wake up. I cannot think of a way to isolate 1.2V from ground. (See the dashed lines)
Your help will be appreciated.
Thanks in advance.
clement
I am having a knotty problem as to how to wire and isolate pins from pther pins.
Take a look at this pic below, I have drew up.
**broken link removed**
I have momentary switches S0, S1 ,S2 and S3.
And there are diodes to isolate any switches from other input pins if any one of them is switched on. Only specified switch is tunrned on for its own input pin. The reason why I used this method is to conserve power while lenthening the battery life.
The diagram looks okay except, I cannot think of way to isolate S0 from other SX when shdn is used to shut down power when it is shorted to ground while shdn is switced to 1.2V to wake up. I cannot think of a way to isolate 1.2V from ground. (See the dashed lines)
Your help will be appreciated.
Thanks in advance.
clement