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The electric thermometer of LED display

2016-12-06 01:55  
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The electric thermometer of LED display
See as Figure 3.1, this is an electric thermometer circuit of LED display. The temperature sensor KTY10 has a good linear relationship between temperature and resistance, and it can be linked with the connecting points A and B of measuring display circuit with a 100m wire, the maximum range of the number display is from -50 to +150, the display bit is 3*1/2.