diff --git a/micropython/aiorepl/aiorepl.py b/micropython/aiorepl/aiorepl.py
index 8f45dfac0..a90490482 100644
--- a/micropython/aiorepl/aiorepl.py
+++ b/micropython/aiorepl/aiorepl.py
@@ -119,20 +119,26 @@ async def task(g=None, prompt="--> "):
                 pt = t  # save previous time
                 t = time.ticks_ms()
                 if c < 0x20 or c > 0x7E:
-                    if c == 0x0A:
-                        # LF
+                    if c == 0x0A or c == 0x0D:
+                        # LF or CR (handle both for raw terminal mode compatibility)
                         if paste:
+                            # In paste mode, preserve the actual character
                             sys.stdout.write(b)
                             cmd += b
                             continue
-                        # If the previous character was also LF, and was less
-                        # than 20 ms ago, this was likely due to CRLF->LFLF
-                        # conversion, so ignore this linefeed.
-                        if pc == 0x0A and time.ticks_diff(t, pt) < 20:
+                        # Handle various newline sequences to avoid double-execution:
+                        # - CR+LF (Windows style): ignore LF if it follows CR quickly
+                        # - LF+LF (PTY double-newline): ignore second LF if it follows quickly
+                        # - CR+CR (potential double-CR): ignore second CR if it follows quickly
+                        if (
+                            (c == 0x0A and pc == 0x0D)  # LF after CR (CRLF)
+                            or (c == 0x0A and pc == 0x0A)  # LF after LF (double LF)
+                            or (c == 0x0D and pc == 0x0D)
+                        ) and time.ticks_diff(t, pt) < 20:  # CR after CR
                             continue
                         if curs:
                             # move cursor to end of the line
-                            sys.stdout.write("\x1B[{}C".format(curs))
+                            sys.stdout.write("\x1b[{}C".format(curs))
                             curs = 0
                         sys.stdout.write("\n")
                         if cmd:
@@ -153,10 +159,10 @@ async def task(g=None, prompt="--> "):
                             if curs:
                                 cmd = "".join((cmd[: -curs - 1], cmd[-curs:]))
                                 sys.stdout.write(
-                                    "\x08\x1B[K"
+                                    "\x08\x1b[K"
                                 )  # move cursor back, erase to end of line
                                 sys.stdout.write(cmd[-curs:])  # redraw line
-                                sys.stdout.write("\x1B[{}D".format(curs))  # reset cursor location
+                                sys.stdout.write("\x1b[{}D".format(curs))  # reset cursor location
                             else:
                                 cmd = cmd[:-1]
                                 sys.stdout.write("\x08 \x08")
@@ -207,21 +213,21 @@ async def task(g=None, prompt="--> "):
                         elif key == "[D":  # left
                             if curs < len(cmd) - 1:
                                 curs += 1
-                                sys.stdout.write("\x1B")
+                                sys.stdout.write("\x1b")
                                 sys.stdout.write(key)
                         elif key == "[C":  # right
                             if curs:
                                 curs -= 1
-                                sys.stdout.write("\x1B")
+                                sys.stdout.write("\x1b")
                                 sys.stdout.write(key)
                         elif key == "[H":  # home
                             pcurs = curs
                             curs = len(cmd)
-                            sys.stdout.write("\x1B[{}D".format(curs - pcurs))  # move cursor left
+                            sys.stdout.write("\x1b[{}D".format(curs - pcurs))  # move cursor left
                         elif key == "[F":  # end
                             pcurs = curs
                             curs = 0
-                            sys.stdout.write("\x1B[{}C".format(pcurs))  # move cursor right
+                            sys.stdout.write("\x1b[{}C".format(pcurs))  # move cursor right
                     else:
                         # sys.stdout.write("\\x")
                         # sys.stdout.write(hex(c))
@@ -231,7 +237,7 @@ async def task(g=None, prompt="--> "):
                         # inserting into middle of line
                         cmd = "".join((cmd[:-curs], b, cmd[-curs:]))
                         sys.stdout.write(cmd[-curs - 1 :])  # redraw line to end
-                        sys.stdout.write("\x1B[{}D".format(curs))  # reset cursor location
+                        sys.stdout.write("\x1b[{}D".format(curs))  # reset cursor location
                     else:
                         sys.stdout.write(b)
                         cmd += b