1. provide extra 4 UART TTL output ` 4x UART TTL output TX,RX,GND,3V3,CTS,RTS 2. Pi UART can select TTL/232 output Pi UART RS232 output GND, TX, RX Pi UART TTL output TX,RX,GND,3V3,XX,XX 3. 2 set i2c signal out GND,5V,SDA,SCL for extend extra UART HAT 4. TTL UART1 support ESP8266 WiFi module socket 5. It provides an individual 3.3V power for UART & output port 6. Provide RTC & RTC backup battery socket 7. Provide HAT EEPROM for future driver program update.
Serial GUI Control Panel
Chip Address Location, Channel Number ( 1 / 2 ), TX and RX receive counter, and Serial port Location /dev/pts/X
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Also provided is a terminal command mode to activate serial ports through a terminal / ssh.
1. device -> /dev/pts/1 2 . Baud rate à 38400 3. click Open device 4. input AT command (HC-05 blutetooth module) 5. screen will show Bluetooth module response |