electronicsforu5d
Automatic Water Level Indicator and Controller
These devices have key drawbacks. Water level indicators require manual pump operation and often waste power as multiple LEDs ...
Hackaday2d
BLE Rain Gauge Sips Water And Batteries
It isn’t that hard to make an electronic rain gauge if you have a steady source of power or you don’t mind changing batteries ...
circuitdigest.com6d
How to Build a Speed Sensor using Arduino?
In this article, we will learn how to similar speed sensor using Arduino and IR sensor ... volatile bool sensor2Triggered = false; const float distanceBetweenSensors = 0.1; // Distance between sensors ...
IEEE5d
Low-cost, High Accuracy, and Long Communication Range Energy-Harvesting Beat Sensor with LoRa and Ω-Antenna for Water-Level Monitoring
Abstract: This article proposes a low cost of USD 72.5 BoM with a small size of water level monitoring IoT sensor without Ultra-Sonic level sensors. The power consumption for sensing and RF ...