Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I ...

The circuit is extremely simple, comprising the sensor, an Arduino Nano, and an OLED display. This device is handy because its voltage output has a known relationship to the gauss level the sensor ...

In his write-up, [Mike] started by listing all the different sensors he had considered to measure the oil level ... an Arduino compatible board with an XBee shield and a 9V battery. Using another ...