Add timeouts to i2c ?

[penfold42]

Great library - thanks!

Has anyone noticed that this hangs if there's no display present ?

[greiman]

Are you using Wire or the minimal AVR I2C driver?

The AVR I2C driver has two while loops that could hang.

  // AvrI2c.h line 120
  while (TWCR & (1 << TWSTO));

  // AvrI2c.h line 142
  while (!(TWCR & (1 << TWINT)));

[penfold42]

Right now I'm using avri2c but I will likely have to migrate to wire on an esp8266.

for now I'll maybe add a simple counter based timeout in those tight loops.

Thanks

[YiorgosTheo]

I have the same issue, thanks. Is there some way to simply bypass the whole screen writing if a screen is not detected?

[YiorgosTheo]

for now, a counter timeout works just fine....