A Line Follower Robot (LFR) is one of the most popular Arduino robotics projects that teaches core concepts of automation and sensor integration. This step-by-step guide will show you how to build a ...

Let’s look at the schematic in Figure 2. Figure 2 The schematic of the IQ Explorer device with an Arduino Nano, 4×20 LCD, two rotary encoders, a simple toggle switch, three analog outputs, three lines ...

Early tests gave the following indicative times (Arduino UNO) for the update() function. Note that above 500 KHz the gain becomes less while reliability of signal decreases. (500 KHz is about 3x ...

This library uses a PCF8575 to read the pulses of a rotary encoder. As a PCF8575 has 16 lines up to 8 decoders can be read over I2C. The PCF interrupt line can be used to detect changes in the ...

That’s the idea behind this Arduino-based measuring jig for fabricating ... We’ve seen his garbage can CNC build and encoders from e-waste and tin cans, all of which gave surprisingly good ...