EA uniTFTm Series

The EA uniTFTm-Series has a built-in a RTC. In addition to providing time-stamps for log files, the time and date can be displayed on the screen. Depending on the location it may be necessary to set the device to local time (#WTD).

To keep clock running even when power supply (3.3V) is switched off, there's a need to install an externally battery: ZIFF connector pin 32 or primary connector MicroMatch pin 23.

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) after a while.