I've done a good search through for the manuals and the forum archives (I love the new vBulletin format) and found and heap of info on interfacing with 7 segment displays, however this is my dillema :
I have 2 x 7 segment displays and want to display "HI", "LO' or a number on them, but also require 2 pins for an ADC input and LED output. I initially thought of using two 4026 drivers and a PICAXE 08M so that I would only have to use 2 output pins but I can't find any documentation to show that you can display letters using the 4026s.
If I use use 2 x 4511 drivers I need 8 pins for the drivers and then another 2 pins for the ADC & LED. The only PICAXE that has 9 outputs is the 28X1 - complete overkill for this simple application.
Can anyone suggest how I can achieve the above on the segment displays whilst retaining the use of something small like the 08M or 14M?? Multipexing the display with one driver with was mentioned in one thread I read, but no more informationwas provided on that this means / how to implement or whether it's even appropriate for my solution.
-Alan
I have 2 x 7 segment displays and want to display "HI", "LO' or a number on them, but also require 2 pins for an ADC input and LED output. I initially thought of using two 4026 drivers and a PICAXE 08M so that I would only have to use 2 output pins but I can't find any documentation to show that you can display letters using the 4026s.
If I use use 2 x 4511 drivers I need 8 pins for the drivers and then another 2 pins for the ADC & LED. The only PICAXE that has 9 outputs is the 28X1 - complete overkill for this simple application.
Can anyone suggest how I can achieve the above on the segment displays whilst retaining the use of something small like the 08M or 14M?? Multipexing the display with one driver with was mentioned in one thread I read, but no more informationwas provided on that this means / how to implement or whether it's even appropriate for my solution.
-Alan