# Pastebin Zm0iIzun
        fsm.act("DATA_WAIT",
            If(self.scl_r == 1, NextState("DATA_READY")),
        )

        fsm.act("DATA_READY",
            If(self.scl_r == 0,
                If(self.current_bit < 8,
                    NextValue(self.current_bit, self.current_bit+1),
                    NextState("DATA_WAIT"),
                ).Else(
                    NextState("ACK_SEND"),
                ),
            ),
        )