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formatting fix for markdown in pt100 page #docs

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pyr0ball 2020-05-09 12:22:50 -07:00
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docs/tutorials/extras/pt100.md
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### PT100 RTD Thermal Sensor Integration # PT100 RTD Thermal Sensor Integration
The EasyPiezi (Rev 1.1.x and Rev 2.x.x) utilize an extra amp channel to allow the use of a PT100 RTD Thermal sensor with minimal additional components. The circuit is based on E3D's daughterboard designed for PT100 sensors. The EasyPiezi (Rev 1.1.x and Rev 2.x.x) utilize an extra amp channel to allow the use of a PT100 RTD Thermal sensor with minimal additional components. The circuit is based on E3D's daughterboard designed for PT100 sensors.
@ -6,4 +6,4 @@ The EasyPiezi (Rev 1.1.x and Rev 2.x.x) utilize an extra amp channel to allow th
The circuit outputs a DC voltage that corresponds to the RTD's change in resistance, which in turn changes based on the temperature of the RTD. This output shares a common ground with other parts of the circuit, so only one additonal output pin is required to utilize it. The circuit outputs a DC voltage that corresponds to the RTD's change in resistance, which in turn changes based on the temperature of the RTD. This output shares a common ground with other parts of the circuit, so only one additonal output pin is required to utilize it.
As this is a direct voltage reading, the usual TH# inputs on most controllers cannot be used (unless the user removes the pullup resistor attached to the input). Instead, the PT100 input must be attached to a bare analog input pin (any of the pins labeled A##, like A5 on Atmega controllers) As this is a direct voltage reading, the usual TH# inputs on most controllers cannot be used (unless the user removes the pullup resistor attached to the input). Instead, the PT100 input must be attached to a bare analog input pin (any of the pins labeled A##, like A5 on Atmega controllers)