UiFlow BLE coding blocks pallet overview
The BLE coding blocks within the UiFlow software align with the universal asynchronous receiver-transmitter (UART) operation domain. A UART is a microelectronics device capable of providing asynchronous serial communication with a configurable data format and transmission speeds. The method of formatting the communication data is through a parallel-serial conversion process provided by the UART. The UART transmits the communication data serially to a receiving UART. Upon the receiving UART obtaining the communication data, it sends the digital information back to the transmitting UART in a parallel format. To accomplish this parallel-serial conversion process among receiving and transmitting UARTs, transmit (Tx) and receive (Rx) pins are used. Figure 7.3 illustrates the physical wiring of the Tx and Rx pins of UART-based communication devices:

Figure 7.3: UART communications method
A final piece of information about...