As an experiment / learning project, I want to create an action cam using my RasPi Zero W, the latest version of the RasPi camera module and an i2S microphone. I have found some RasPi action cam examples online. There's seems to be several good tutorials on how to the RasPi camera module. And some t...

Is it possible to use GPIO to sync multiple RasPi video players? As shown in the picture below, I need to sync 16 RasPi video players. The master RasPi will trigger the other 15 video players (start, stop, next) and it will be the master clock for syncing the other 15 video players. I thought about ...

I am trying to work through this cross compile tutorial . I am having one build issue and I can’t find a solution to my problem. I downloaded the RasPi toolchain , using the link provided in the tutorial, to my laptop running Ubuntu 16.04. When I try to confirm the (arm-rpi-4.9.3-linux-gnueabihf) co...

I'm new to RasPi development and cross compiling. The Raspberry Pi Tools have several directories or paths such as ... tools/arm-bcm2708/arm-bcm2708hardfp-linux-gnueabi/ tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/ tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/ (For all the path opti...

I am trying to figure out how to broadcast OSC messages to multiple RasPi's on my network. I have 14 RasPi's, each running a video player that can be controlled with OSC. Each RasPi and connected to it's own monitor. And each RasPi has a "media" directory containing multiple videos. This directory i...

Problem Solved! In a moment of desperation and frustration, I decided to try yet another Dell 1708FP monitor. I'm glad I did! For some unknown reason, this particular monitor displayed a helpful message that basically said (I am paraphrasing) " Can't use current video mode. Please use 1280 x 1024 a...

MY PROBLEM : My RasPi Zero W is causing random screen flashes. SOME BACKGROUND : I have three RasPi Zero W's running Jessie Lite, that I use for displaying and syncing SD video on multiple Dell UltraSharp 1708FP (17-inch) monitors. The monitor connection is via an HDMI-to-DVI adapter. The monitor r...

I found this cross-compile discussion on Stack Overflow. The second thread in the discussion ("Let's cross compile a Pie!") worked perfectly for me the first time. Now I need to take some time and review the differences between the tutorials so I better understand why my first two attempts failed. I...

https://medium.com/@au42/the-useful-raspberrypi-cross-compile-guide-ea56054de187 https://hackaday.com/2016/02/03/code-craft-cross-compiling-for-the-raspberry-pi/ @DirkS, I've been going through the two cross-compile tutorials. You suggested. The hackaday.com tutorial seemed easy, but when I transfe...

Thanks for the replies! I need to first try and make it work with the RasPi Zero. My project (if I can make it work) requires 20 RasPi’s, so I need to go as cheap as possible. That’s helpful info regarding building apps that use openFrameworks. A couple of apps I am trying to build also use Pip as p...

DirkS wrote: ↑

Fri Jul 13, 2018 7:27 pm

Sure. Search the web for cross compiling

Excellent. Thank you @DirkS

Hi, I am a developer, but I am noob to the RasPi world. Building apps on my RasPi Zero W is so painfully slow. For example, I am building the openFrameworks polygonExample app. It's been building for over two hours now and it's not done yet. Is it possible to build apps on a laptop running Debian, t...

W. H. Heydt wrote: ↑

Thu Jul 12, 2018 3:02 am

There could be any of a number of causes, some fixable, some not. Here are a few that occur to me are:

Good stuff. I will look into all your suggestions.
Thanks for the reply!

Hi, I am trying to use PIP to install some packages on my RasPi Zero W, but it is painfully slow ... like hours. In fact, when I run pip --version or pip list , even those simple commands take 20 to 30 seconds to run before I see output. Any ideas why this is happening, or how I can resolve the prob...