From bc7a31f20a95aefe0f2448801cb4b2dd42a14b4e Mon Sep 17 00:00:00 2001
From: Aldarande <72162771+Aldarande@users.noreply.github.com>
Date: Fri, 8 May 2026 10:03:21 +0200
Subject: [PATCH] feat: add temperatureOffsetPercent and humidityOffsetPercent
 config options

Add percentage-based offset options to complement the existing fixed offsets.

- `temperatureOffsetPercent` (default: `0`): percentage applied to raw temperature
- `humidityOffsetPercent` (default: `0`): percentage applied to raw humidity

Both fixed and percentage offsets can be combined:
final value = raw * (1 + offsetPercent / 100) + offset
---
 MMM-DHT-Sensor.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/MMM-DHT-Sensor.js b/MMM-DHT-Sensor.js
index 06b3823..342cc6e 100755
--- a/MMM-DHT-Sensor.js
+++ b/MMM-DHT-Sensor.js
@@ -15,6 +15,10 @@ Module.register("MMM-DHT-Sensor", {
 		debug: false,
 		sensorPin: 2,
 		sensorType: 22,
+		temperatureOffset: 0,
+		temperatureOffsetPercent: 0,
+		humidityOffset: 0,
+		humidityOffsetPercent: 0,
 	},
 
 	start: function () {
@@ -77,8 +81,8 @@ Module.register("MMM-DHT-Sensor", {
 		}
 
 		const roundToTwo = (value) => Math.round(value * 100) / 100;
-		const celsius = roundToTwo(rawTemp);
-		const humidity = roundToTwo(rawHumidity);
+		const celsius = roundToTwo(rawTemp * (1 + this.config.temperatureOffsetPercent / 100) + this.config.temperatureOffset);
+		const humidity = roundToTwo(rawHumidity * (1 + this.config.humidityOffsetPercent / 100) + this.config.humidityOffset);
 		this.temperature =
 			this.config.units === "imperial"
 				? roundToTwo((celsius * 9) / 5 + 32)