Blog posts tagged with 'Arduino'

Building a 20 kg Scale with HX711 and a Load Cell
Building a 20 kg Scale with HX711 and a Load Cell

A load cell combines strain gauges in a bridge, and the HX711 amplifies the tiny differential bridge voltage and converts it digitally. It does not…

Reading a Flex Sensor with Arduino
Reading a Flex Sensor with Arduino

A flex sensor changes resistance as it bends. A common 2.2-inch part is about 5.6 cm long, not 7 cm, and other lengths and resistance ranges must be…

Viewing an ECG Signal with AD8232 and Arduino: A Safe Educational Demo
Viewing an ECG Signal with AD8232 and Arduino: A Safe Educational Demo

The AD8232 is an analog front end for conditioning a single-lead ECG signal from skin electrodes. This experiment displays a waveform for learning and…

Hall-Effect Sensors with Arduino: Digital and Analog Types
Hall-Effect Sensors with Arduino: Digital and Analog Types

A Hall-effect sensor responds to magnetic field, but its output may be a digital switch, a latch, or a linear analog signal. Not every module provides…