different font, print samplerate, add readme.

README.md

+# Osci Music Player
+
+Please see [my blog post for more details](https://www.xythobuz.de/osci_music_player.html).
+
+Quick start instructions can be found in the top comment of the Python script in this repo.
+
+    ssh osci-music "sudo systemctl disable --now osci.service" && scp osci-pi.py osci-music:~ && ssh osci-music "sudo systemctl enable --now osci.service"

osci-pi.py

 from luma.core.error import DeviceNotFoundError
 import psutil
 import RPi.GPIO as GPIO
+from PIL import ImageFont
 
 basevol = "70"
+debouncems = 200
+
+#fontfile = "/usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf"
+fontfile = "/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"
+fontsize = 11
 
 LCD_REFRESH = 5.0
 
 
 currentplaying = None
 lcd = None
+font = None
 bat = None
 songlist = None
 currentfile = None
             f = f.replace("/", "\n")
             f = f.replace("_", " ")
 
-            f += "\n"
-            f += "Batt: {:.0f}%  {:.2f}V  {:.2f}A".format(bat.get_battery_level(), bat.get_battery_voltage(), bat.get_battery_current())
+            f += "\n\n"
+            f += "Bat: {:.0f}% {:.2f}V {:.2f}A".format(bat.get_battery_level(), bat.get_battery_voltage(), bat.get_battery_current())
+
+            ip = get_ipv4_address()
+            if len(ip) > 0:
+                f += "\n"
+                f += "IP: %s" % (ip)
 
-            f += "\n"
-            f += "IP: %s" % (get_ipv4_address())
+            with open("/proc/asound/card0/pcm0p/sub0/hw_params", "r") as rf:
+                for line in rf:
+                    if line.startswith("rate:"):
+                        rate = int(line.split(" ")[1])
 
-            draw.multiline_text((0, 0), f, fill="white")
+                        f += "\n"
+                        f += "Rate: {:.0f}kHz".format(rate / 1000)
+
+            draw.multiline_text((0, 0), f, font=font, fill="white", spacing=-1)
     except Exception as e:
         raise e
 
 
 def main():
     global lcd
+    global font
     global bat
     global currentfile
 
         print("\t" + sys.argv[0] + " PATH")
         sys.exit(1)
 
+    os.system("killall ffplay")
+
     GPIO.setmode(GPIO.BCM)
     for b in [ BTN_ARTIST, BTN_NEXT ]:
         GPIO.setup(b, GPIO.IN, pull_up_down=GPIO.PUD_UP)
-        GPIO.add_event_detect(b, GPIO.BOTH, callback=button, bouncetime=100)
+        GPIO.add_event_detect(b, GPIO.BOTH, callback=button, bouncetime=debouncems)
 
     try:
         bus = i2c(port=1, address=0x3C)
         lcd = ssd1306(bus)
+        font = ImageFont.truetype(fontfile, fontsize)
     except DeviceNotFoundError as E:
         print("No LCD connected")
         lcd = None