Hi, I am sure the group can help with this simple question. I am building a clock using 8 x 7 Segment Common Anode displays. The display uses a MAX6921AWI display driver chip and multiplexing to drive the displays. The problem is that the above chip has a minimum output of 8V, however the 7 Segment Common Anode displays are rated at 5V. This being confirmed by the testing of the displays using the 5V from an Arduino Uno via a 220ohm in-line resistor and back to ground.
Each display is 55m by 38mm and has 45mm x 25mm digits, 10 pins on the rear, with WLG marked on the back, manufactured in 2008, ( these displays being recovered from two 4 digit 9V supply bedside clocks). Can I use 8V to power these displays/what is the maximum input voltage? If not then how best to use the MAX6921AWI allowing it to supply 8V while the displays receive a maximum of 5V? I am sure the above is simple to many however being new to using 7 segment displays I would appreciate any help. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/6154b80f-9f51-431c-999e-54e4c91d1d65%40googlegroups.com.
