1 files changed, 29 insertions, 0 deletions
diff --git a/reset.py b/reset.py
new file mode 100755
index 0000000..ae5d74b
--- /dev/null
+++ b/reset.py
@@ -0,0 +1,29 @@
+#!/usr/bin/python
+
+import serial
+import os
+
+try:
+    highest = 0
+    # this totally won't work on Mac OSX! /dev/ttySOMETHINGELSE?
+    for f in filter(lambda x: x.startswith('ttyACM'), os.listdir('/dev/')):
+        if (int(f[6:]) > highest):
+            highest = int(f[6:])
+
+    print "Trying /dev/ttyACM%d..." % highest
+    ser = serial.Serial('/dev/ttyACM%d' % highest, baudrate=115200)
+    ser.open()
+
+    # pull dtr and rts low
+    ser.setRTS(0)
+    ser.setDTR(0)
+
+    # toggle DTR
+    ser.setDTR(1)
+
+    # close
+    ser.close()
+
+except:
+    print "Failed to open the serial port for reset, perhaps this is your first upload or the board was already in bootloader mode"
+