December 2020 archive

5 Way Navigation Button connected to an Arduino or STM32F103C8T6

A 5 way navigation button actually has 7 different navigational settings. It has a lot of functionality in a small package.  The ‘button’ on it can be moved/pushed in 4 directions ( labeled up, down, left, right)  or pressed down. There are also two other switched buttons labeled ‘Set’ and ‘Reset’ for a total of …

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PIR Sensor and Relay Switch to turn on a Light

PIR Sensor and Relay Switch to turn on a Light

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 …

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An STM32F103C8T6 based MIDI Controller for MIDI2LR

MIDI2LR MIDI Controller

For those of you who use Adobe Lightroom,  there is a way to use a MIDI hardware ‘box’ to control various Lightroom actions. I am told that once you use the hardware controls you will never want to go back to the software ones. There is a Lightroom plugin called MIDI2LR which interfaces various MIDI …

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