Skip to Content

Changes for page Sensor Module

Last modified by Heimir Thordarson on 2026/07/05 12:56
From version 17.5
edited by Heimir Thordarson
on 2026/01/22 12:51
Change comment: There is no comment for this version
To version 17.11
edited by Heimir Thordarson
on 2026/01/22 13:00
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -68,7 +68,20 @@
68 68  (% class="wikigeneratedid" %)
69 69  As shown in the figure above, the thermistor is put into a voltage divider circuit with a 4k7 ohm resistor to convert the resistance changes of the thermistor to a measurable voltage. To find the temperature of the thermistor based on the voltage measure by the analog-to-digital converter (adc), the resistance of the thermistor needs to be calculated based on the voltage from a voltage divider.
70 70  
71 +{{mathjax}}
72 +$$
73 +R_T = R_f \frac{V_{out}}{V_{in} - V_{out}}
74 +$$
75 +{{/mathjax}}
71 71  
77 +(% class="wikigeneratedid" %)
78 +where:
79 +
80 +* {{mathjax}}$$R_f$${{/mathjax}} = The resistance of the upper resistor, which in this case is 4.7k Ohms
81 +* {{mathjax}}$$V_{out}$${{/mathjax}} = Voltage measured by the microcontroller
82 +* {{mathjax}}$$V_{in}$${{/mathjax}} = Supply voltage of the voltage divider, which in this case is 3.3 Volts
83 +* {{mathjax}}$$R_T$${{/mathjax}} = Resistance of the thermistor in Ohms
84 +
72 72  === Suspension Displacement Sensor ===
73 73  
74 74  === Oil Temperature Sensor ===