Dec 11 2020
Ever wonder how a motion detector is used to turn on a light? Take a look at this graphic (made with Fritzing). It shows the circuitry that uses an STM32F103C8T6 microcontroller to control a PIR sensor and relay switch to turn on a Light. Get the Fritzing source code for the above image HERE (in …
Oct 22 2017
A number of sensors are powered via 12 Volts. Some, however, need 5 Volts. To power a remote DHT11 temperature sensor, I created a 12V to 5V sensor circuit. This is the wiring diagram: Get the Fritzing code for it HERE. The DHT11 needs 5 volts, ground and data. It plugs into …
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