Time / RTC
EA uniTFTs035-ATC and EA uniTFTs043-ATC has a built-in RTC clock. It provides a time-stamp for log files and the time and date can be displayed on the screen directly. On delivery, the time is set to Central European Time (CET / MEZ). Depending on the location it may be necessary to set the device to local time (#WTD). In the event of a voltage drop, or when the module is switched off, the clock is powered by a button cell (D377), so that the correct time is retained. Due to component tolerances and temperature fluctuations, deviations of up to 0.02% are possible. The deviation can be reduced by repeatedly adjusting the time (#WTD). For the smaller displays EA uniTFTs020 and uniTFTs028 an external RTC can be connected. We suggest the MCP7940N: |
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