From 730904e6ba5ae244bdae59d629e857310681ac67 Mon Sep 17 00:00:00 2001
From: Joerg Lehmann <joerg.lehmann@nbit.ch>
Date: Thu, 9 Jan 2020 17:12:04 +0100
Subject: [PATCH] change timing/power handling

---
 mini-beieli-node.ino | 13 +++++++------
 mini_beieli_node.h   |  9 +++------
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/mini-beieli-node.ino b/mini-beieli-node.ino
index aa5e7d2..b8d90f9 100644
--- a/mini-beieli-node.ino
+++ b/mini-beieli-node.ino
@@ -536,7 +536,6 @@ void DoDeepSleep(uint32_t sleep_time)
   }
 }
 
-// highest and lowest value will be ignored
 long my_read_average(byte gain, byte times) {
   // highest and lowest value will be ignored
   long sum = 0;
@@ -547,13 +546,14 @@ long my_read_average(byte gain, byte times) {
   if (config_data.debug_level > 0) {
     gCatena.SafePrintf("%010d - my_read_average, measurements: ", millis());
   }
+
+  LoadCell.set_gain(gain);
+  // we wait 400ms (settling time according HX711 datasheet @ 10 SPS
+  delay(400);
+
   for (byte i = 0; i < times; i++) {
-    delay(WAITTIMELOADSAMPLES * 1000);
-    LoadCell.power_up();
-    LoadCell.set_gain(gain);
-    delay(2);  // wait for stabilizing
+    // we wait 400ms (settling time according HX711 datasheet @ 10 SPS)
     v = LoadCell.read();
-    LoadCell.power_down();
 
     if (L > v) L = v; // find lowest value
     if (H < v) H = v; // find highest value
@@ -562,6 +562,7 @@ long my_read_average(byte gain, byte times) {
       gCatena.SafePrintf("%d ", v);
     }
     gCatena.poll();
+    delay(WAITTIMELOADSAMPLES);
   }
   res = (sum - L - H) / (times - 2);
   if (config_data.debug_level > 0) {
diff --git a/mini_beieli_node.h b/mini_beieli_node.h
index 1b77f76..f12866a 100644
--- a/mini_beieli_node.h
+++ b/mini_beieli_node.h
@@ -55,13 +55,10 @@ enum {
   |
   \****************************************************************************/
 
-static const int32_t fwVersion = 20200107;
+static const int32_t fwVersion = 20200109;
 
-// wait between samples
-// 3 sec is a good delay so that load cell did not warm up
-// too much and external random influences like wind has time
-// to go so that the next sample is more valid
-const int WAITTIMELOADSAMPLES = 3;
+// wait between samples in milliseconds
+const int WAITTIMELOADSAMPLES = 100;
 
 static const byte INIT_PACKAGE_INTERVAL = 100;  // send an init package every 100 packages;
 static const byte MAX_VALUES_TO_SEND = 8;