When analyzing capacitor AC circuits, the analysis method of charging and discharging is very complicated and not easy to understand, so the equivalent analysis method should be used. This analysis me
1. Sensor OverviewSHT11 and SHT21 are produced by Sensirion, Switzerland. They have wide accuracy and measurement range, but the price is high. SHT11 and SHT21 are single-chip fully calibrated digital
Use 7747 to measure capacitance, the capacitance value to be tested is about 3pf.
After I2C is connected, I configured the registers of 7747 according to the sample code of 7746, but when reading the
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