Borewell Motor Pump Starter Controller Circuit

The post explains a circuit which controls a submersible borewell motor by operating its red (Start) and green (Stop) buttons, in response to low level, high level water conditions, and also in a condition where the motor may experience a dry run situation. The idea was requested by Mr. Vamsi. Automatic Start/Stop Controller for Borewell … Read moreBorewell Motor Pump Starter Controller Circuit

Solar Drip Irrigation Circuit for Indoor Gardens

The post explains a water level controller circuit which can be used for implementing an unmanned continuous drip irrigation to a home based garden. The idea was requested by Mr. Sandipan. Technical Specifications I’m implementing a drip irrigation for my balcony garden. One part of it is to automatic fill water a 5 liter/10 liter … Read moreSolar Drip Irrigation Circuit for Indoor Gardens

Water Flow Valve Timer Controller Circuit

The article details about an automatic water flow controller timer circuit which switches a valve mechanism ON/OFF as per a set predetermined timing sequence. The idea was requested by Mr. John Clarke. Technical Specifications I’ve seen your site and designs and wondered if you could help with a controller I’m trying to design to control … Read moreWater Flow Valve Timer Controller Circuit

Light Activated Water Level Controller Circuit

The light activated water level controller circuit explained here has the advantage of being corrosion free and much reliable than the traditional moisture sensor type of water sensors. Circuit Operation One slight downside of this LDR based sensor is that the tank interior always needs to be illuminated by some kind of light source such … Read moreLight Activated Water Level Controller Circuit

Analogue Water Flow Sensor/Meter Circuit – Check Water Flow Rate

The post explains a simple water flow meter/sensor circuit using hall effect sensor and a pulse counter circuit. Referring to the diagram shown below, we can see an arrangement consisting of a circular enclosure having a couple of pipes drilled in and a circular turbine shaped wheel installed inside the enclosure. How it Works The … Read moreAnalogue Water Flow Sensor/Meter Circuit – Check Water Flow Rate