Hi guys,
I'm very new to electronics especially PIC's. So please excuse any ignorance.
I wanted to use a 74LS138 3 to 8 line decoder, however when the inputs change the outputs turn off (non latching), I need them to latch until the input is removed. I have considered using 74LS74's before finally going into ULN2308A for the final output to LED's, but it seems to get messy with 3 IC's to do a reasonably simple task.
To resolve this I was pointed in the direction of PIC's but with no real understanding I need a few pointers.
Can it be done?
I was looking at the PIC16F887 (40pin) as this gives me 4 banks of 8 Inputs/Outputs?
So using 9 as inputs could have 24 as outputs?
Is this an ok chip or too big/many features for what I want?
Seen as I have no programmer either what do you think about this;
http://cgi.ebay.co.uk/PIC-Developme...al_Components_Supplies_ET?hash=item414d40e809
I have programmed a lot in BASIC before such as Liberty BASIC so learning 35 commands shouldn't be that hard?!
Thanks for your help.
Dave
I'm very new to electronics especially PIC's. So please excuse any ignorance.
I wanted to use a 74LS138 3 to 8 line decoder, however when the inputs change the outputs turn off (non latching), I need them to latch until the input is removed. I have considered using 74LS74's before finally going into ULN2308A for the final output to LED's, but it seems to get messy with 3 IC's to do a reasonably simple task.
To resolve this I was pointed in the direction of PIC's but with no real understanding I need a few pointers.
Can it be done?
I was looking at the PIC16F887 (40pin) as this gives me 4 banks of 8 Inputs/Outputs?
So using 9 as inputs could have 24 as outputs?
Is this an ok chip or too big/many features for what I want?
Seen as I have no programmer either what do you think about this;
http://cgi.ebay.co.uk/PIC-Developme...al_Components_Supplies_ET?hash=item414d40e809
I have programmed a lot in BASIC before such as Liberty BASIC so learning 35 commands shouldn't be that hard?!
Thanks for your help.
Dave