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-rw-r--r--extmod/modonewire.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/extmod/modonewire.c b/extmod/modonewire.c
index 53c9456c2..7ef4c3bce 100644
--- a/extmod/modonewire.c
+++ b/extmod/modonewire.c
@@ -34,8 +34,8 @@
// Low-level 1-Wire routines
#define TIMING_RESET1 (480)
-#define TIMING_RESET2 (40)
-#define TIMING_RESET3 (420)
+#define TIMING_RESET2 (70)
+#define TIMING_RESET3 (410)
#define TIMING_READ1 (5)
#define TIMING_READ2 (5)
#define TIMING_READ3 (40)