raspi-configが起動したら、以下のような画面になるので、 Interfacing options Serial Port 「いいえ」 ハードウェアポートをアクティブ化するかどうかの質問に「はい」 「了解」 デバイスの確認 $ dmesg | grep PL011 [ 0.038572] Serial: AMBA PL011 UART driver [ 1.431030] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 14, base_baud = 0) is a PL011 rev2 $ ls -al /dev/ttyAMA0 crw--w---- 1 root tty 204, 64 12月 28 19:44 /dev/ttyAMA0
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