Tag Archives: Raspberry PI Zero

Streaming Video with the Raspberry Pi Zero W & Pi Camera

IR-CUT Camera Module
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I needed a really tiny yet cheap camera so I thought of the Raspberry Pi Camera module. The Version 2 Camera Module does 8MP with good quality, although a 5MP  IR-Cut Camera better suited my needs.

About the IR-CUT Camera

The IR-CUT Camera works on Normal Mode by default. There are two ways to toggle between Normal Mode and Night-vision Mode.

1. By editing the config.txt file:

and append:

exit with save and restart your Pi then the camera will work on Night-vision Mode.

Run a Program On Your Raspberry Pi At Startup

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The method that I usually use to run a program on your Raspberry Pi at startup is to use the file rc.local. In order to have a command or program run when the Pi boots, you can add commands to the rc.local file. This is especially useful if you want to power up your Pi in headless mode (that is without a connected monitor), and have it run a program without configuration or a manual start.

Editing rc.local

On your Pi, edit the file /etc/rc.local using the editor of your choice. You must edit it with root permissions:

Add commands to execute the python program, preferably using absolute referencing of the file location (complete file path are preferred). Be sure to leave the line exit 0 at the end, then save the file and exit. In nano, to exit, type Ctrl-x, and then Y.

Raspberry Pi “Zero”: HDMI Monitors Has NO SIGNAL

Raspberry Pi Zero
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When connecting a Raspberry Pi ‘Zero’ for the first time to a TV monitor with HDMI, and receive the message: “No Signal”. I tried it on several inputs and cables with no luck. Other devices work fine with the TV, and the cables so there can not be the problem. Then I tried a computer monitor with HDMI, also with no luck. What is happening?

I’ve investigated the problem for a couple of hours, before finding the solution.

The Raspberry Pi ‘Zero’ outputs a relatively weak HDMI Signal. Some devices may not immediately notice the Raspberry Pi ‘Zero’s HDMI Signal, or may not go through the negotiation process.

24-bit, 192KHz Audio for the Raspberry Pi Zero with the pHAT

pHAT DAC for Raspberry Pi Zero
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The pHAT provides a super affordable high-quality DAC for your Raspberry Pi. It pumps out 24-bits at 192KHz from the Raspberry Pi’s I2S interface on its 2×20 pin GPIO header.

Use pHAT DAC to build a tiny, lush-sounding streaming music device, or use it with Scroll pHAT to make a beautiful spectrum analyser!

Features

  • 24-bit audio at 192KHz
  • Line out stereo jack
  • Optional landing for dual RCA phono connector
  • PCM5102A DAC over the Raspberry Pi’s I2S interface
  • pHAT DAC pinout
  • Compatible with Raspberry Pi 3B+, 3, 2, B+, A+, Zero, and Zero W
  • Female header requires soldering



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