Aug 29, 2005 #1 C coolchip Full Member level 2 Joined Nov 17, 2003 Messages 125 Helped 1 Reputation 2 Reaction score 2 Trophy points 1,298 Activity points 1,109 max7219 1196 How can I drive common anode 7-segment using max7219 ? The IC is for driving common cathode displays.
max7219 1196 How can I drive common anode 7-segment using max7219 ? The IC is for driving common cathode displays.
Aug 29, 2005 #2 S sysco_stevens Junior Member level 3 Joined Jul 2, 2005 Messages 30 Helped 3 Reputation 6 Reaction score 0 Trophy points 1,286 Activity points 1,546 7 segment display driver you can use discrete transistor to drive them, such as c1815. best regards coolchip said: How can I drive common anode 7-segment using max7219 ? The IC is for driving common cathode displays. Click to expand...
7 segment display driver you can use discrete transistor to drive them, such as c1815. best regards coolchip said: How can I drive common anode 7-segment using max7219 ? The IC is for driving common cathode displays. Click to expand...
Aug 29, 2005 #3 C coolchip Full Member level 2 Joined Nov 17, 2003 Messages 125 Helped 1 Reputation 2 Reaction score 2 Trophy points 1,298 Activity points 1,109 7 segement displa. not working What are discrete transistors? Can I use any general ones?
Aug 29, 2005 #4 O optech Member level 1 Joined Dec 19, 2004 Messages 37 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,288 Activity points 407 Here is the link which answer of your question: **broken link removed**
Aug 30, 2005 #5 C coolchip Full Member level 2 Joined Nov 17, 2003 Messages 125 Helped 1 Reputation 2 Reaction score 2 Trophy points 1,298 Activity points 1,109 optech said: Here is the link which answer of your question: h**p://www.maxim-ic.com/appnotes.cfm/appnote_number/1196 Click to expand... Thanks ! But there's no mention of transistor values.
optech said: Here is the link which answer of your question: h**p://www.maxim-ic.com/appnotes.cfm/appnote_number/1196 Click to expand... Thanks ! But there's no mention of transistor values.
Sep 10, 2005 #6 K kang_computer_01 Junior Member level 1 Joined Apr 19, 2005 Messages 18 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,429 you can use not gate or buffer not to connect output of max 7219.
Sep 11, 2005 #7 C coolchip Full Member level 2 Joined Nov 17, 2003 Messages 125 Helped 1 Reputation 2 Reaction score 2 Trophy points 1,298 Activity points 1,109 thanks! It worked like charm.