Remote digital thermometer circuit diagram for grid communication
Source: InternetPublisher:风向双子座 Updated: 2020/04/27
Data from remote sensors are transmitted remotely via the power grid
Temperature range: 00.0-99.9℃
Equipment use:
This circuit is designed to measure the temperature in degrees Celsius, converting the frequency emission sensor to an output voltage proportional to the measured temperature portion. The output frequency pulses are passed to the 220V supply.
The receiver section counts pulses supplied by the power supply and displayed on three 7-segment LED displays. The transmitter-receiver distance is up to 100 meters.
Warning! Please pay attention to safety when connecting the two circuits to the AC power supply!
Figure 1 Transmitter circuit diagram
Figure 2 Receiver circuit schematic diagram
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