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and also my life

GPIO Input with libgpiod

2021-05-10 hardware raspberry-pi

We can use the libgpiod library to configure a GPIO line as input and read it’s value. We’ll create a switch circuit so we can test the ... Read More

Blinking and LED with libgpiod

2021-05-03 hardware raspberry-pi

In the previous post we introduced libgpiod. In this post we’ll use the command line tools to blink and LED. Finally, we’ll write some C ... Read More

Raspberry Pi SPI Explained

2021-04-21 hardware raspberry-pi

This post attempts to provide some finer details when using SPI on Raspberry Pi as it pertains to using the Chip Select pins and multiple SPI ... Read More

Audio Clip Capture by Threshold

2021-04-10 hardware raspberry-pi alsa

Here is a command line tool to capture audio clips based on a threshold. The setup is a microphone attached to a Raspberry Pi. I used multiple ... Read More

LSM9DS1 Command Line Tool for Raspberry Pi

2020-06-03 hardware raspberry-pi

I recently created a LSM9DS1 Command Line Tool for the Raspberry Pi. This tool was used to capture Accelerometer and Gyroscope data. I did an ... Read More

UART Between Raspberry Pi and Arduino

2020-03-18 c hardware arduino raspberry-pi

Using a 2-wire serial connection we can communicate from a Rapsberry Pi (RPi) to an Arduino. For the Rasperry Pi we’ll use the built in UART ... Read More