Papan Ekspansi Port Serial Rs232 Untuk Raspberry Pi

Serial Port Expansion Board RS232 for Raspberry Pi RS232 GPIO Serial Port Expansion Board for Raspberry Pi 3 Model B, 3B, 3A GPIO UART Shield Feature: The UART is /dev/ttyAMAO and the default is to output the system log. However, if the user wants to use this UART to connect to other modules via the UART, su as the GPS module, the configuration needs to be anged. The detailed steps are as follows: We need to modify two files: /boot/cmdline.txt and /etc/inittab. Modify /boot/cmdline.txt: Replace the content: Dwc_otg.lpm_enable = 0 console = ttyAMA0,115200 kgdboc = ttyAMA0,115200 console = tty1 root = / dev / mmcblk0p2 rootfstype = ext4 elevator = deadline rootwait Attaed: Dwc_otg.lpm_enable = 0 console = tty1 root = / dev / mmcblk0p2 rootfstype = ext4 elevator = deadline rootwait Modify /etc/inittab: Comment out the last line of /etc/inittab. To comment, it just adds a #39;# #39;. sudo vi / etc / inittab T0:23:respawn:/ sbin / getty -L ttyAMA0 115200 vt100 Save your anges and restart. We will get a UART with a baud rate of 115200. packing list: 1X RS232 / GPIO board for Raspberry Pi