From 87f323b13cea08667b1d7a4de74ffa039e952199 Mon Sep 17 00:00:00 2001
From: Cyril Fougeray <cyril.fougeray@toolsforhumanity.com>
Date: Mon, 10 Feb 2025 14:53:42 +0100
Subject: [PATCH] feat(als): add flag indicating LED interference (#45)

on Diamond EVT, ALS sensor is located on the front unit, close
to the front LEDs. That ones are interfering with the ALS readings.
Make sure to mark the ALS reading as invalid if the front LEDs
are on.
---
 messages/main.proto | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/messages/main.proto b/messages/main.proto
index 44ae730..9975c04 100644
--- a/messages/main.proto
+++ b/messages/main.proto
@@ -598,6 +598,8 @@ message AmbientLight
         ALS_OK = 0;
         ALS_ERR_RANGE = 1; // likely too much light in the sensor, consider the
                            // value as ~500
+        ALS_ERR_LEDS_INTERFERENCE = 2; // front LEDs are turned on, interfering
+                                       // with ALS so value cannot be trusted
     };
     uint32 ambient_light_lux = 1;
     Flags flag = 2;