Ultrasound

There are cheap PIR motion sensors available for the ESP8266. The HC-SR501 is such a module. It can be configured through two potis at the back regarding sensitivity and delay after a motion detection, before the output is reset again. The sensor has three pins: One for +5V, one for ground, and…

The Wemos D1 mini is a great board to start working with the ESP-8266 chip. It does not only contain the chip and basic resistors, it includes a micro USB port for flashing and power supply, both 5V and 3.3V pins for usage with other connected hardware, an CH340 USB…

The most simple light sensor is a light dependent resistor (LDR). It costs almost nothing, and serves its purpose. The following drawing shows how to connect an LDR to the analog input port from the ESP. You need the pulldown resistor (10kΩ in our case) in order to get a…

This is only a sample article, you can now start creating your own content. Why Choose KnowAll? KnowAll is the ultimate Knowledge Base theme for WordPress. It comes pre-packaged with all the tools to setup and manage a successful support center. Reduce support tickets and have happier Customers KnowAll is…

This is only a sample article, you can now start creating your own content. Why Choose KnowAll? KnowAll is the ultimate Knowledge Base theme for WordPress. It comes pre-packaged with all the tools to setup and manage a successful support center. Reduce support tickets and have happier Customers KnowAll is…

This is only a sample article, you can now start creating your own content. Why Choose KnowAll? KnowAll is the ultimate Knowledge Base theme for WordPress. It comes pre-packaged with all the tools to setup and manage a successful support center. Reduce support tickets and have happier Customers KnowAll is…

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