DPELECTRONICS WIRELESS WATER LEVEL INDICATOR Educational Electronic Hobby Kit

A wired water-level indicator uses many wires, whose resistance increases as their length increases. A wireless water level indicator using microcontroller (MCU) is costly and not very easy to program. Presented here is a low-cost wireless water level indicator without an MCU. This circuit has transmitter and receiver units. The transmitter unit is placed near the water tank, whereas the receiver unit is placed inside the house for monitoring four different levels: low, middle, full and overflow.