From 5ae093c2eb0f8ceda2a8d7d1cdf06ddbfc50a913 Mon Sep 17 00:00:00 2001
From: John Park <jp@jpixl.net>
Date: Mon, 24 Aug 2020 10:34:19 -0700
Subject: [PATCH] first commit bitcoin matrix code and bg

---
 Bitcoin_Matrix/bitcoin_background.bmp | Bin 0 -> 6200 bytes
 Bitcoin_Matrix/bitcoin_matrix.py      |  53 ++++++++++++++++++++++++++
 2 files changed, 53 insertions(+)
 create mode 100755 Bitcoin_Matrix/bitcoin_background.bmp
 create mode 100755 Bitcoin_Matrix/bitcoin_matrix.py

diff --git a/Bitcoin_Matrix/bitcoin_background.bmp b/Bitcoin_Matrix/bitcoin_background.bmp
new file mode 100755
index 0000000000000000000000000000000000000000..f176ca740d427d4655d1db018674207dc0bc4d7b
GIT binary patch
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diff --git a/Bitcoin_Matrix/bitcoin_matrix.py b/Bitcoin_Matrix/bitcoin_matrix.py
new file mode 100755
index 000000000..d45f3c225
--- /dev/null
+++ b/Bitcoin_Matrix/bitcoin_matrix.py
@@ -0,0 +1,53 @@
+# Run on Metro M4 Airlift w RGB Matrix shield and 64x32 matrix display
+# show current value of Bitcoin in USD
+
+import time
+import board
+import terminalio
+from adafruit_matrixportal.matrixportal import MatrixPortal
+
+# You can display in 'GBP', 'EUR' or 'USD'
+CURRENCY = "USD"
+# Set up where we'll be fetching data from
+DATA_SOURCE = "https://api.coindesk.com/v1/bpi/currentprice.json"
+DATA_LOCATION = ["bpi", CURRENCY, "rate_float"]
+
+
+def text_transform(val):
+    if CURRENCY == "USD":
+        return "$%d" % val
+    if CURRENCY == "EUR":
+        return "‎€%d" % val
+    if CURRENCY == "GBP":
+        return "£%d" % val
+    return "%d" % val
+
+
+# the current working directory (where this file is)
+cwd = ("/" + __file__).rsplit("/", 1)[0]
+
+matrixportal = MatrixPortal(
+    url=DATA_SOURCE,
+    json_path=DATA_LOCATION,
+    status_neopixel=board.NEOPIXEL,
+    default_bg=cwd + "/bitcoin_background.bmp",
+    debug=True,
+)
+
+matrixportal.add_text(
+    text_font=terminalio.FONT,
+    text_position=(27, 16),
+    text_color=0x3d1f5c,
+    text_transform=text_transform,
+)
+matrixportal.preload_font(b"$012345789")  # preload numbers
+matrixportal.preload_font((0x00A3, 0x20AC))  # preload gbp/euro symbol
+
+while True:
+    try:
+        value = matrixportal.fetch()
+        print("Response is", value)
+    except (ValueError, RuntimeError) as e:
+        print("Some error occured, retrying! -", e)
+
+    time.sleep(3 * 60)  # wait 3 minutes