application: recalibrate lid temperature

2020-12-08 23:14:57 +01:00 · 2020-12-08 23:14:57 +01:00 · 6d93633587
parent 8b62d16436
commit 6d93633587
1 changed files with 2 additions and 2 deletions
--- a/application.c
+++ b/application.c
@ -207,8 +207,8 @@ static float lid_temperature(void)

 	// convert to °C
 	// calibrated using a DS18B20 (accuracy = +- 0.5°C), with 12-bit precision
-	// 2.7013 V = 20.500 °C, 0.35925 V = 84.062 °C
-	return -27.125 * voltages[1] + 93.7727;
+	// 2.3491 V = 21.500 C, 0.1337 V = 104.9 °C
+	return -37.6456 * voltages[1] + 109.933;
 }

 /** set the power delivered to the lid heater