4 digit common anode displays you can drive with a SAA1064 from NXP (ex Philips).
A lib for this chip can found by google 
This is a nice solution via I2C for a panel display with up to 2m cable 4 wire shilded (is use a pice of LAN-cable)
4 digit common anode displays you can drive with a SAA1064 from NXP (ex Philips).
A lib for this chip can found by google
This is a nice solution via I2C for a panel display with up to 2m cable 4 wire shilded (is use a pice of LAN-cable)