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Changes for page Sensor Module

Last modified by Heimir Thordarson on 2026/07/05 12:56
From version 17.4
edited by Heimir Thordarson
on 2026/01/22 12:49
Change comment: There is no comment for this version
To version 18.1
edited by Heimir Thordarson
on 2026/01/22 13:25
Change comment: There is no comment for this version

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... ... @@ -66,8 +66,22 @@
66 66  [[image:circuit with marks.png||height="195" width="465"]]
67 67  
68 68  (% class="wikigeneratedid" %)
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)
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}}
76 +
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 +
71 71  === Suspension Displacement Sensor ===
72 72  
73 73  === Oil Temperature Sensor ===