Increese sleep time between writes to accomodate typical write
cycle times. An Atmel AT24C02 as well as an ON Semiconductor
CAT24C02 EEPROM specify 5ms. This resolves errors such as:
...
Bus: /dev/i2c-1, Address: 0x50, Mode: 8bit
Writing stdin starting at address 0x0
..Error i2c_write_2b: Input/output error
Error at line 162: write error
[JD] Define a single constant and add a note that this could be
revisited.
Stefan Agner
Wolfram Sang
Jean Delvare