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by flatmax
Sat Apr 21, 2018 10:43 am
Forum: Graphics, sound and multimedia
Topic: Introducing the AudioInjector Ultra
Replies: 1
Views: 250

Introducing the AudioInjector Ultra

Hi there, We have a new sound card available for preorder. It is designed for the Raspberry Pi. The Audioinjector Ultra has premium specifications and performance. It provides stereo input and output audio lines. It has 2 microphones on board. It also outputs SPDIF digital audio. For the pro users, ...
by flatmax
Sun Feb 04, 2018 1:12 pm
Forum: Automation, sensing and robotics
Topic: New DIY battery protector + power board idea : feedback request
Replies: 3
Views: 307

New DIY battery protector + power board idea : feedback request

What do you think of this power board ?
http://www.kickstarter.com/projects/125 ... n=b0411944

We are trying to redesign and take feedback - it packs a lot of functionality.

Matt
by flatmax
Wed Dec 13, 2017 6:34 pm
Forum: For sale
Topic: Solderless Zero connectors
Replies: 1
Views: 831

Solderless Zero connectors

Hi there, We have an invention which allows people to connect headerless PCBs (like the Pi Zero) together - without soldering and without force. It is called a "Quick connect PCB clip". We have entered our last few days in this project and are sharing a last chance to join the kickstarter project be...
by flatmax
Sat Dec 09, 2017 12:02 pm
Forum: General discussion
Topic: DIY electronics lovers - we need your help
Replies: 0
Views: 541

DIY electronics lovers - we need your help

Hey there, We really need some help pushing our awesome PCB quick connect clip over the line. This is a fantastic tool for all DIY electronic lovers and students ! It makes prototyping and interfacing electronics so quick and easy ... and that is why we want to bring it to life... The kickstarter pr...
by flatmax
Fri Dec 08, 2017 7:08 am
Forum: General discussion
Topic: High Precision AD/DA board ADS1256
Replies: 7
Views: 1341

Re: High Precision AD/DA board ADS1256

your setup is like so : 5v =====> pot =====> ADC input ===> ..................|| ..................|| .................GND What people are saying is that the 5v reference will have analog signal NOISE. This noise is measured by your ADC ... from what you say, your noise is showing in the last 8 to 1...
by flatmax
Thu Dec 07, 2017 3:39 am
Forum: Other
Topic: Pi3 & Zero W : overlays with buildroot
Replies: 3
Views: 1082

Pi3 & Zero W : overlays with buildroot

Hey all,

It is possible to compile buildroot however it appears that overlays aren't working ...
Anyone got pointers on using overlays with buildroot and the Pi3/zero W ?

thanks
Matt
by flatmax
Thu Dec 07, 2017 3:38 am
Forum: Other
Topic: Pi3 & Zero W : wifi with buildroot
Replies: 2
Views: 1611

Re: Pi3 & Zero W : wifi with buildroot

Checked it out ! They are using very old versions of linux and buildroot.

This worked for me :
BR2_PACKAGE_WPA_SUPPLICANT=y
BR2_PACKAGE_RPI_WIFI_FIRMWARE=y
BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTB_OVERLAYS=y

with suitable settings for network/interfaces and wpa_supplicant.conf
by flatmax
Wed Dec 06, 2017 2:33 am
Forum: Other
Topic: Pi3 & Zero W : wifi with buildroot
Replies: 2
Views: 1611

Pi3 & Zero W : wifi with buildroot

Hi there,

Has anyone got configs for buildroot which enable the wifi and wpa_supplicant ?

thanks
Matt
by flatmax
Tue Nov 28, 2017 10:13 am
Forum: General discussion
Topic: pogo pin clip - zero compatible
Replies: 0
Views: 477

pogo pin clip - zero compatible

Check these awesome zero compatible pogo pin clips :
https://www.kickstarter.com/projects/12 ... ef=piforum

They are awesome for rapid prototyping and also connecting headerless boards such as the zero or other addons.

Matt
by flatmax
Mon Nov 27, 2017 6:43 am
Forum: Advanced users
Topic: buildroot + U-boot trials
Replies: 6
Views: 1734

Re: buildroot + U-boot trials

Any updates on successes here ?

Are you using 64bit Linux by any chance ?

Matt
by flatmax
Sun Nov 26, 2017 10:15 pm
Forum: Other projects
Topic: 64bit Buildroot operating system and the Pi3
Replies: 2
Views: 834

64bit Buildroot operating system and the Pi3

Hi there,

Has anyone tried using the Pi configs in the buildroot repo ?

https://github.com/buildroot/buildroot.git

Like this one :

https://github.com/buildroot/buildroot/ ... _defconfig


I am interested to hear about experiences and gotchyas ?

Matt
by flatmax
Sun Nov 26, 2017 10:12 pm
Forum: Raspbian
Topic: buildroot for raspberry pi
Replies: 22
Views: 12158

Re: buildroot for raspberry pi

I notice that the Raspberry Pi now has build root configs ... anyone tried to use them more recently ?

Matt
by flatmax
Mon Nov 13, 2017 10:12 am
Forum: General discussion
Topic: Solderless connector pins for Pi Zero GPIO
Replies: 18
Views: 15328

Re: Solderless connector pins for Pi Zero GPIO

Thank you, greatly honoured to have a moderator on board . It lifts the product's reputation no end !

Matt
by flatmax
Mon Nov 13, 2017 10:09 am
Forum: Wanted
Topic: Can someone recommend a pogo pin for rpi 0?
Replies: 3
Views: 3181

Re: Can someone recommend a pogo pin for rpi 0?

We were searching for something similar for the Pi 0. Couldn't find it, so we started a new product, it may be useful to you : https://www.kickstarter.com/projects/1250664710/pcb-quick-connect-clip-40-pin-raspberry-pi-compati/?ref=piforum I have been using them for a while now to debug various audio...
by flatmax
Sun Nov 12, 2017 6:16 am
Forum: General discussion
Topic: Solderless connector pins for Pi Zero GPIO
Replies: 18
Views: 15328

Re: Solderless connector pins for Pi Zero GPIO

We have launched a 40 pogo pin clamp connector which may be of interest to you, check it out here : https://www.kickstarter.com/projects/1250664710/pcb-quick-connect-clip-40-pin-raspberry-pi-compati?ref=piforumpogo0 It is a solderless 40 pin connection option, can be used for Pi Zero headerless syst...
by flatmax
Mon Nov 06, 2017 7:36 pm
Forum: Other projects
Topic: PCBh quick connect clip
Replies: 0
Views: 544

PCBh quick connect clip

Hey there,

I thought this may be of interest to Pi Zero people.

A new PCB quick connect clip is available - it lets you connect to headerless PCBs (like the zero) in seconds.

Come check it out here on kickstarter.
by flatmax
Sat Nov 04, 2017 3:18 am
Forum: Graphics, sound and multimedia
Topic: PiDeck Digital Vinyl System released
Replies: 9
Views: 2583

Re: PiDeck Digital Vinyl System released

Hey guys, thanks for the hard work,

https://github.com/pideck/pideck/issues ... -269236535

I noticed you have Pideck down to 4 ms with the audio injector sound card - awsome ! I wonder how/if we can get the latency down further ?


Matt
by flatmax
Thu Nov 02, 2017 10:15 am
Forum: General discussion
Topic: Solderless quick connect clips for the GPIO header
Replies: 1
Views: 768

Solderless quick connect clips for the GPIO header

Hey there, We are keen to get feedback on our PCB quick connect clips ... see here . We think these are the ultimate for solderless connections to header footprints - like the Pi Zero's unpopulated header. What do you think of our video, project or other things ? zero.bot.ai.top.web.jpg thanks Matt
by flatmax
Thu Jul 27, 2017 11:13 am
Forum: C/C++
Topic: Tutorial 3 - Audio programming with gtkIOStream
Replies: 2
Views: 656

Re: Tutorial 3 - Audio programming with gtkIOStream

OK - all ready now to compile, run and test ! We compile it with the following command : g++ `pkg-config --cflags --libs gtkIOStream` -o ALSACapture ALSACapture.C Using the ALSACapture file as the output and similar name for the source code we entered into our IDE (or text editor). We run like so - ...
by flatmax
Thu Jul 27, 2017 11:06 am
Forum: C/C++
Topic: Tutorial 3 - Audio programming with gtkIOStream
Replies: 2
Views: 656

Re: Tutorial 3 - Audio programming with gtkIOStream

In the IDE, enter the following code (we will run through this code in execution order to understand what it is doing) : #include <ALSA/ALSA.H> #include <iostream> using namespace std; using namespace ALSA; #include <Sox.H> int main(int argc, char *argv[]) { if (argc<2){ cout<<"Usage:\n"<<argv[0]<<"...
by flatmax
Thu Jul 27, 2017 10:59 am
Forum: C/C++
Topic: Tutorial 3 - Audio programming with gtkIOStream
Replies: 2
Views: 656

Tutorial 3 - Audio programming with gtkIOStream

gtkIOStream is a versatile software for signal processing and audio processing, amongst other features (such as GUI programming). It interfaces directly with ALSA and or jackd for low latency audio processing and routing. gtkIOStream also provides a nice port GUI for jackd. This tutorial targets ALS...
by flatmax
Wed Jul 26, 2017 1:32 pm
Forum: C/C++
Topic: Tutorial 2 - Audio programming with gtkIOStream
Replies: 2
Views: 1101

Re: Tutorial 2 - Audio programming with gtkIOStream

We compile it with the following command : g++ `pkg-config --cflags --libs gtkIOStream` -o JackClient JackClient.C this command should be reasonably familiar to you now, we are compiling the code (JackClient.C) and calling it JackClient. We have to start jackd before we start our client, if you are ...
by flatmax
Wed Jul 26, 2017 12:57 pm
Forum: C/C++
Topic: Tutorial 2 - Audio programming with gtkIOStream
Replies: 2
Views: 1101

Re: Tutorial 2 - Audio programming with gtkIOStream

In geany, cut and past the following code : #include <JackClient.H> #include <iostream> using namespace std; #include <unistd.h> // for sleep /** This jack client will play back what it captures */ class JackFullDuplex : public JackClient { /// The Jack client callback - copy input to output int pro...
by flatmax
Wed Jul 26, 2017 12:42 pm
Forum: C/C++
Topic: Tutorial 2 - Audio programming with gtkIOStream
Replies: 2
Views: 1101

Tutorial 2 - Audio programming with gtkIOStream

gtkIOStream is a versatile software for signal processing and audio processing, amongst other features (such as GUI programming). It interfaces directly with jackd for low latency audio processing and routing. gtkIOStream also provides a nice port monitor interface which shows which jackd ports are ...
by flatmax
Mon Jul 24, 2017 1:20 pm
Forum: C/C++
Topic: Tutorial 1 - Audio programming with gtkIOStream
Replies: 2
Views: 563

Re: Tutorial 1 - Audio programming with gtkIOStream

We need an audio file for testing, so lets download a free one : wget "https://ogg.jamendo.com/download/track/206411/ogg1/" -O flatmax.CentralTransmission.ogg Compile your code : g++ `pkg-config --cflags --libs gtkIOStream` -o SoxInOut SoxInOut.C The pkg-config statement tells g++ about preprocessor...

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