From 99b027852b145e27b93a7f7fdd3f933d95d01c22 Mon Sep 17 00:00:00 2001
From: Colin Kuebler <kueblc@gmail.com>
Date: Fri, 1 Feb 2019 17:33:21 -0500
Subject: [PATCH] Fixed first color command failing; need to wait for chip to
 power up

---
 sonoff/xdrv_04_light.ino | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sonoff/xdrv_04_light.ino b/sonoff/xdrv_04_light.ino
index 4a6c21389..ba12ac3db 100644
--- a/sonoff/xdrv_04_light.ino
+++ b/sonoff/xdrv_04_light.ino
@@ -408,7 +408,9 @@ void SM16716_Update(uint8_t duty_r, uint8_t duty_g, uint8_t duty_b)
 #endif // D_LOG_SM16716
       sm16716_enabled = 1;
       digitalWrite(sm16716_pin_sel, HIGH);
-      //delayMicroseconds(20);
+      // in testing I found it takes a minimum of ~380us to wake up the chip
+      // tested on a Merkury RGBW with an SM726EB
+      delayMicroseconds(400);
       SM16716_Init();
     }
     else if (sm16716_enabled && !sm16716_should_enable) {