How can a set of characters or hex values be sent out or transmitted from the Tx UART Pins on the EK-TM4C123GXL?
We have a number of examples to use UART for outputting characters.
I would recommend you start by referencing our 'Hello' example in TivaWare, which you can download here: https://www.ti.com/tool/SW-TM4C
You can find the example in the folder [Install Path]/TivaWare_C_Series-220.127.116.115\examples\boards\ek-tm4c123gxl
We also have a Timer example that you can use to handle the 3 second interval aspect, look for the 'Timers' project.
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