From 01cd6fdd33490ab901b1f8c9811e3a40933ae454 Mon Sep 17 00:00:00 2001
From: Emil Renner Berthing <esmil@mailme.dk>
Date: Wed, 22 Jul 2020 12:59:08 +0200
Subject: [PATCH] Don't show uninitialized data

When the chip first powers up the contents of the
brightness level registers are undefined, so
don't enable output before initialising the data.
---
 adafruit_is31fl3731.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/adafruit_is31fl3731.py b/adafruit_is31fl3731.py
index cf4b673..b7c3e95 100644
--- a/adafruit_is31fl3731.py
+++ b/adafruit_is31fl3731.py
@@ -93,7 +93,6 @@ def __init__(self, i2c, address=0x74):
         self.i2c = i2c
         self.address = address
         self._frame = None
-        self.reset()
         self._init()
 
     def _i2c_read_reg(self, reg, result):
@@ -141,6 +140,8 @@ def _mode(self, mode=None):
         return self._register(_CONFIG_BANK, _MODE_REGISTER, mode)
 
     def _init(self):
+        self.sleep(True)
+        time.sleep(0.01)  # 10 MS pause to reset.
         self._mode(_PICTURE_MODE)
         self.frame(0)
         for frame in range(8):
@@ -148,6 +149,7 @@ def _init(self):
             for col in range(18):
                 self._register(frame, _ENABLE_OFFSET + col, 0xFF)
         self.audio_sync(False)
+        self.sleep(False)
 
     def reset(self):
         """Kill the display for 10MS"""