In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...
In this video I'm showing how you can send data from an Arduino (NodeMCU) board to a hosted Laravel application. The example is super simple and I use generated random data on the NodeMCU board to ...
Using a single GPIO port on a microcontroller to control N bits of arbitrary parallel binary outputs, e.g., a multi-digital display.