The circuit diagram is simple ... are powered with 5V from the Arduino. Below is the assembled image of the receiver side. Just like the transmitter side, the receiver also requires an antenna, so I ...

The load is now a boiler. (See Figure 4, page 20.) This wiring diagram shows 120 V coming from L1 of a circuit breaker, through a switch, powering a boiler control and returning through L2, back to ...

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4 and 19 pins are used to adjust the display contrast through a resistor. I use a 1 Mega Ohm variable resistor. Acceptable contrast ~270kOm.

This project uses the YF-S201 Hall Effect sensor with Arduino Uno to measure water flow rate and volume. Data is shown on a 16x2 LCD. Applications include agriculture, industry, and smart homes. Files ...