Arduino – Operating the Water Pump with Ultrasonic Sensor and Relay

- 📖🕓 ≈  4 min - Problem Description:In the garage of our company it happens again and again that water runs into the light shafts during heavy rain. If this is not checked regularly, the light shaft will overflow and water will accumulate in the garage. For this reason, it is often necessary to check whether there is water in the shafts. If this is the case, the water is pumped out manually each time. This takes time and is also