I did not use an I2C display but standard 7 segments. But i can see the beefit of using that LCD display as i reckon that better simulates the real thing. You have me thinking, i would look for a large format 4 line display but only use 2 of the 4 lines. Hopefully someone else who has gone down this route will reply with the anser you need.
Hi, Karl here as Helen is away,
I did not use an I2C display but standard 7 segments. But i can see the beefit of using that LCD display as i reckon that better simulates the real thing. You have me thinking, i would look for a large format 4 line display but only use 2 of the 4 lines. Hopefully someone else who has gone down this route will reply with the anser you need.