From e4ed2439c428ccbd4da6e03b9f365b4653ce924b Mon Sep 17 00:00:00 2001
From: Craig Markwardt <cbmarkwardt+gitcommit@gmail.com>
Date: Fri, 22 Mar 2019 11:15:07 -0400
Subject: [PATCH] sensors - allow a second BMX280 sensor

---
 code/espurna/config/sensors.h | 3 ++-
 code/espurna/sensor.ino       | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/code/espurna/config/sensors.h b/code/espurna/config/sensors.h
index f1d16825..fb127a7f 100644
--- a/code/espurna/config/sensors.h
+++ b/code/espurna/config/sensors.h
@@ -159,8 +159,9 @@
 #endif
 
 #ifndef BMX280_ADDRESS
-#define BMX280_ADDRESS                  0x00    // 0x00 means auto
+#define BMX280_ADDRESS                  0x00    // 0x00 means auto (0x76 or 0x77 allowed)
 #endif
+//#define BMX280_ADDRESS2                 0x77    // Address of 2nd BMX (must not use auto for either if two are present)
 
 #define BMX280_MODE                     1       // 0 for sleep mode, 1 or 2 for forced mode, 3 for normal mode
 #define BMX280_STANDBY                  0       // 0 for 0.5ms, 1 for 62.5ms, 2 for 125ms
diff --git a/code/espurna/sensor.ino b/code/espurna/sensor.ino
index 8c2571d4..d380fede 100644
--- a/code/espurna/sensor.ino
+++ b/code/espurna/sensor.ino
@@ -481,6 +481,13 @@ void _sensorLoad() {
         BMX280Sensor * sensor = new BMX280Sensor();
         sensor->setAddress(BMX280_ADDRESS);
         _sensors.push_back(sensor);
+
+      #ifdef BMX280_ADDRESS2
+        // Up to two BME sensors allowed on one bus
+        BMX280Sensor * sensor2 = new BMX280Sensor();
+        sensor->setAddress(BMX280_ADDRESS2);
+        _sensors.push_back(sensor2);
+      #endif
     }
     #endif