OP needs to drive three LED in series strings. I don't think TM1638 work ab= ove 5V. The price is right though. Cheerful regards, Bob ________________________________________ From: piclist-bounces@mit.edu on behalf of Mr Smi= ley Sent: Wednesday, March 6, 2019 11:28 AM To: piclist@mit.edu Subject: Re: [EE] Looking for recommendation: high-side LED display driver TM1638 :0) -- --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .