Yes it has problems pulling it up, but it has no problems pulling it down, so I added 2.2K resistor from input of ULN to +5V and now it can be controlled with PC8575.
|
Re: PCF8575 Does not work with my code....
Yes it has problems pulling it up, but it has no problems pulling it down, so I added 2.2K resistor from input of ULN to +5V and now it can be controlled with PC8575.
|
Re: PCF8575 Does not work with my code....
Unless you need I2C for comm, why not use something like a UCN5842 and run with shiftout? I have used these for at least 10 years...
|
Re: PCF8575 Does not work with my code....
I need space saving package, but still solderable by hand, and 16 outputs and low price
These UCNs are large (not available in TSSOP package) and have only 8 outputs....
Members who have read this thread : 0You do not have permission to view the list of names.
Posting Permissions
Bookmarks