The 7-Segment Serial Display from Sparkfun http://www.sparkfun.com/products/9765 came in the mail today. Arunet has a good guide for this product: http://www.arunet.co.uk/tkboyd/ec/ec1led4x7ser.htm. Here's some notes.
- After using it for about 4 minutes the brightness went down. Do this to get it back to maximum brightness:
- Changing the baud rate was a little tricky. Sending it "127" and then "4" doesn't work, nor does "1276." I did:
And finally it changed the baud rate to 19200.
- If it starts showing dots when you don't want them, do this:
and the dots should go away.