initial commit

flashing_time.py

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+#!/usr/bin/env python
+
+from subprocess import run
+
+# requires pySerial:
+# python -m pip install pyserial
+import serial
+
+# grab the port for the seeed nrf52 (only connect one at a time)
+data = run("ls /dev/ | grep 'cu.usbmodem'", capture_output=True, shell=True, text=True)
+
+ser = serial.Serial("/dev/" + data.stdout.strip(), 1200)
+# send 16 null characters as reset signal to enter the bootloader
+ser.write(b"\x00" * 16)
+ser.close()