Create bitcoin.py

Author: robertclarkson

bitcoin.py

@@ -0,0 +1,79 @@
+#! /usr/bin/env python
+
+from __future__ import print_function
+import subprocess
+import sys
+import time
+import json, requests
+import math
+import scrollphat
+
+
+scrollphat.set_brightness(4)
+
+# Every refresh_interval seconds we'll refresh the weather data, doesn't change too often so 30mins appropriate
+pause = 0.12
+ticks_per_second = 1/pause
+refresh_interval = 60
+
+url = "http://api.coindesk.com/v1/bpi/currentprice.json"
+
+def get_timeout():
+    return ticks_per_second * refresh_interval
+
+def get_wet():
+# Get the weather data
+#    print("Price Update...")
+#scrollphat.set_pixels(lambda x, y: 1, auto_update=True)
+    resp = requests.get(url)
+    sine()
+    try:
+	data = json.loads(resp.text)
+    except:
+	print(resp)
+	return "ERR"
+    val = data['bpi']['USD']['rate']+"           "
+    return val
+
+def sine():
+    timer = 0
+    i = 0
+    buf = [0] * 11
+    while (timer < 2):
+        try:
+            for x in range(0, 11):
+                y = (math.sin((i + (x * 10)) / 10.0) + 1) # Produces range from 0 to 2
+                y *= 2.5 # Scale to 0 to 5
+                buf[x] = 1 << int(y)
+
+            scrollphat.set_buffer(buf)
+            scrollphat.update()
+
+            time.sleep(0.005)
+	    timer+=0.005
+            i += 1
+        except KeyboardInterrupt:
+            scrollphat.clear()
+            sys.exit(-1)
+
+timeout = get_timeout()
+count = 0
+msg = get_wet()
+scrollphat.write_string(msg)
+
+while True:
+    try:
+#        scrollphat.scroll()
+        time.sleep(pause)
+
+        if(count > timeout):
+            msg = get_wet()
+            scrollphat.write_string(msg)
+            timeout = get_timeout()
+            count = 0
+        else:
+            count = count+ 1
+    except KeyboardInterrupt:
+        scrollphat.clear()
+        sys.exit(-1)
+