1 files changed, 7 insertions, 0 deletions
diff --git a/sensor/sensor.ino b/sensor/sensor.ino
index 867c17d..f144ef4 100644
--- a/sensor/sensor.ino
+++ b/sensor/sensor.ino
@@ -24,6 +24,7 @@
 
 // arduino-esp32 Logging system
 // activate in Arduino IDE: Tools -> Core Debug Level
+// tip: set log level to Error for plot-friendly output
 #define CONFIG_ARDUHAL_ESP_LOG 1
 #define LOG_LOCAL_LEVEL CORE_DEBUG_LEVEL
 #include <esp32-hal-log.h>
@@ -193,5 +194,11 @@ void loop() {
   // update Bluetooth beacon service data
   setBeaconServiceData(getGapeAngle());
 
+  // misuse error-only log level for plot-friendly output
+#if ARDUHAL_LOG_LEVEL == ARDUHAL_LOG_LEVEL_ERROR
+  Serial.printf("gape_angle:%d\n",
+    getGapeAngle());
+#endif
+
   delay(500);
 }