0107-18-R1.0

The Renfell Engineering UART RS232 4 Wire IoT card allows the user to access the onboard hardware UART interface on the mangOH™ development board. For a HL family device, this card provides access to the hardware AT command UART; for a WP family device, this card provides access to the /dev/ttyHSL0 UART for program applications. Separate TX and RX LEDs provide a visual indication of transmit and receive data as an aide to debugging data communications.