From 049a12197480ba15800094d9ab22181782b8ced3 Mon Sep 17 00:00:00 2001
From: Phil Howard <phil@pimoroni.com>
Date: Mon, 27 Mar 2023 13:36:05 +0100
Subject: [PATCH] Dot Matrix: Allow set char from string.

---
 .../modules/breakout_dotmatrix/breakout_dotmatrix.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/micropython/modules/breakout_dotmatrix/breakout_dotmatrix.cpp b/micropython/modules/breakout_dotmatrix/breakout_dotmatrix.cpp
index 4bc8614b..1fd400ad 100644
--- a/micropython/modules/breakout_dotmatrix/breakout_dotmatrix.cpp
+++ b/micropython/modules/breakout_dotmatrix/breakout_dotmatrix.cpp
@@ -124,7 +124,16 @@ mp_obj_t BreakoutDotMatrix_set_character(size_t n_args, const mp_obj_t *pos_args
     breakout_dotmatrix_BreakoutDotMatrix_obj_t *self = MP_OBJ_TO_PTR2(args[ARG_self].u_obj, breakout_dotmatrix_BreakoutDotMatrix_obj_t);
 
     int x = args[ARG_x].u_int;
-    int ch = mp_obj_get_int(args[ARG_ch].u_obj);
+    int ch = 0;
+
+    if(mp_obj_is_str_or_bytes(args[ARG_ch].u_obj)) {
+        GET_STR_DATA_LEN(args[ARG_ch].u_obj, str, str_len);
+        if(str_len == 1) {
+            ch = str[0];
+        }
+    } else {
+        ch = mp_obj_get_int(args[ARG_ch].u_obj);
+    }
     self->breakout->set_character(x, ch);
 
     return mp_const_none;