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by TonyD
Wed Jan 06, 2016 12:54 pm
Forum: HATs and other add-ons
Topic: Ready-made relays?
Replies: 7
Views: 1653

Re: Ready-made relays?

You don't say how many relays you need, but here's a two relay unit:

https://www.tindie.com/products/DTronix ... pberry-pi/
by TonyD
Tue Jan 05, 2016 1:30 pm
Forum: General discussion
Topic: Meet Raspberry Pi Zero: the $5 computer
Replies: 539
Views: 99639

Re: Meet Raspberry Pi Zero: the $5 computer

.....was just trying to get a definitive answer if the scenario used for the ChromeCast would work on the RPiZero :? Yes! Just tested it. As expected Chromecast Ethernet adapter (product code EA4CC-1E in Europe, I imagine -1A US is same) does NOT use ASIX chipset but Realtek r8152. Fortunately this...
by TonyD
Thu Dec 17, 2015 1:29 pm
Forum: Graphics programming
Topic: Raspberry PI with LabVIEW
Replies: 4
Views: 10606

Re: Raspberry PI with LabVIEW

I've saw this blog post from a group of "Labview experts" experimenting with Labview on a Pi.

http://www.tsxperts.com/labviewforraspberrypi/

Not sure how far the project is but they're asking for beta testers
by TonyD
Mon Nov 30, 2015 2:21 pm
Forum: General discussion
Topic: high speed bus options
Replies: 3
Views: 973

Re: high speed bus options

Yes, its a shame there's no info on the SMI it would be [hopefully] a useful method of attaching byte-wide high speed ADC's.
by TonyD
Mon Nov 30, 2015 1:50 pm
Forum: General discussion
Topic: Raspberry Pi Zero Eagle Footprint / LBR
Replies: 6
Views: 10700

Re: Raspberry Pi Zero Eagle Footprint / LBR

Thanks for sharing.
by TonyD
Fri Nov 27, 2015 3:37 pm
Forum: Español
Topic: Raspberry con 2 puertos serie RS485
Replies: 2
Views: 691

Re: Raspberry con 2 puertos serie RS485

You could use a dual USB RS485 adapter but if you want to use the PI's UART something like this might do: https://www.tindie.com/products/DTronixs/raspberry-piio-minipiio-rs485-add-on-board/ As the Pi only has one UART you would need two modules and multiplex the TE & DE signals in your software. Th...
by TonyD
Wed Nov 25, 2015 3:27 pm
Forum: Other projects
Topic: Cases for Pi and 7" touch screen?
Replies: 49
Views: 30105

Re: Cases for Pi and 7" touch screen?

I've got one of the multicomp cases and as as PiBrain says you don't have access to the expansion port so it might do what you want

some pictures here:

http://uk.farnell.com/multicomp/cbrpp-t ... ategoryId=
by TonyD
Thu Nov 19, 2015 3:13 pm
Forum: Gaming
Topic: Atari Controller interface?
Replies: 3
Views: 1475

Re: Atari Controller interface?

Here's another interface board that might help:

https://www.tindie.com/products/DTronix ... -kit-only/
by TonyD
Tue Oct 06, 2015 12:16 pm
Forum: Official Foundation Display
Topic: 7" Display Sketchup file
Replies: 5
Views: 3228

Re: 7" Display Sketchup file

Cool, I didn't know inkscape could do that :-)

Many thanks for the walk through.
by TonyD
Mon Oct 05, 2015 1:03 pm
Forum: Official Foundation Display
Topic: 7" Display Sketchup file
Replies: 5
Views: 3228

Re: 7" Display Sketchup file

Thanks for sharing !

Could you post the DXF file as well.

Out of interest what did you use to convert the pdf to DXF?
by TonyD
Thu Oct 01, 2015 12:12 pm
Forum: Beginners
Topic: PCB Board Layout/Design Software
Replies: 11
Views: 3833

Re: PCB Board Layout/Design Software

I found DesignSpark to be one of the easier packages to use. It doesn't have any size or layer restrictions and can be used for commercial use unlike the free version of EagleCad, which is why I swapped from Eagle to it. I've used it to create a lot of add-on boards for the Pi and other things as we...
by TonyD
Mon Sep 21, 2015 12:12 pm
Forum: General discussion
Topic: Suggestion for HATS
Replies: 4
Views: 1059

Re: Suggestion for HATS

This is the spec for a Pi Breakout board I designed some time ago:

2x SPI Headers
2x I2C Headers
2x UART Headers
2x GPIO Headers
Prototyping Area (10 x 24-holes)

more details here: https://www.tindie.com/products/DTronix ... breakout-/
by TonyD
Mon Jul 20, 2015 12:24 pm
Forum: Compute Module
Topic: Multi Server CM Board
Replies: 22
Views: 3900

Re: Multi Server CM Board

A quick way of removing solder bridges is to use "desoldering braid" or "solder wick" which is braided copper wire. I use it all the time.

https://en.wikipedia.org/wiki/Desoldering
by TonyD
Mon Jun 29, 2015 12:38 pm
Forum: Bare metal, Assembly language
Topic: We made Doom (1993) on the Raspberry Pi
Replies: 2
Views: 1230

Re: We made Doom (1993) on the Raspberry Pi

+1 good job.

Hope you release the source code soon.
by TonyD
Mon Jun 15, 2015 12:48 pm
Forum: Advanced users
Topic: GPIO conficured as 8 bit bidirectional bus.
Replies: 8
Views: 4837

Re: GPIO conficured as 8 bit bidirectional bus.

If only Broadcom documented the SMI (Secondary Memory Interface) module.. +1 For the OP: You could multiplex the Address & Data bus pins and use a latch and an "Address Latch Enable" ALE signal. So 16x GPIO for multiplexed address/data bus and 3x GPIO for ALE, WE, RD. We did this all the time for 8...
by TonyD
Mon Jun 08, 2015 12:29 pm
Forum: HATs and other add-ons
Topic: Question about HAT specification
Replies: 3
Views: 1818

Re: Question about HAT specification

You'll typically find the female header connector used on the add-on board is around 8.5mm high and the Pi Pin Header has a height of 2.5mm for the plastic bit. so 8.5 + 2.5 = 11mm.

Hope this helps
by TonyD
Tue Jun 02, 2015 1:02 pm
Forum: Automation, sensing and robotics
Topic: About Expansions Boards.
Replies: 6
Views: 1077

Re: About Expansions Boards.

Hello Guys, i am here to ask one question, where i can buy some expansions boards, for example, expansion to gpios pins, and boards maded to home automation like this: .. I am having some difficuties to find boards and sources codes with examples to do things , someone can help me with posts, sites...
by TonyD
Tue Jun 02, 2015 12:28 pm
Forum: Graphics, sound and multimedia
Topic: MIDI Sequencer
Replies: 4
Views: 4222

Re: MIDI Sequencer

Here's the original schematic for the MIDI interface: http://www.midi.org/techspecs/electrispec.php I've made a couple of RPi MIDI add-on boards myself. My first attempt way back in 2012 is here And a later design in 2014 is here : The tricky bit was configuring RPi for the 32150 baud rate. https://...
by TonyD
Fri May 01, 2015 1:14 pm
Forum: Python
Topic: Pi-thon! Create python scripts for GPIO faster and easier.
Replies: 2
Views: 1084

Re: Pi-thon! Create python scripts for GPIO faster and easie

Great looking tool.
Thanks for sharing !
by TonyD
Fri May 01, 2015 1:10 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: RS-232 or RS-485 interface for Raspberry
Replies: 7
Views: 3482

Re: RS-232 or RS-485 interface for Raspberry

Hi! Wish to start working with Raspberry on my factory, but we use RS-232 or 485 interface. Is there any turnkey solution for my needs? Thanks! Here's a couple of add-on boards which will do RS232 and RS485 RS232 http://zuzebox.files.wordpress.com/2012/06/minipiio_rs232.jpg RS485 https://zuzebox.fi...
by TonyD
Thu Feb 26, 2015 1:09 pm
Forum: Graphics, sound and multimedia
Topic: Midium, a MIDI editor and visualizer
Replies: 2
Views: 1140

Re: Midium, a MIDI editor and visualizer

Thanks for sharing. I've been looking for a standalone MIDI app for the Pi (or Pi2) I'll give it a whirl.
by TonyD
Thu Jan 15, 2015 2:17 pm
Forum: Off topic discussion
Topic: Horizon circa 1977: microprocessors
Replies: 6
Views: 884

Re: Horizon circa 1977: microprocessors

...brings a misty tear to the eye :-)

EPROM's with windows how I remember you and/or should be hated the fact I had to wait 30-minutes to erase you and start again :-)
by TonyD
Tue Dec 16, 2014 12:54 pm
Forum: Graphics, sound and multimedia
Topic: Accident scoreboard
Replies: 3
Views: 1039

Re: Accident scoreboard

Why don't you use a LCD monitor or TV for the display?
by TonyD
Tue Dec 02, 2014 1:57 pm
Forum: General programming discussion
Topic: SMI Documentation ?
Replies: 17
Views: 7232

Re: SMI Documentation ?

To repeat what Bruce said, are they really no plans to release any information on the SMI?

I would like to add a fast ADC (>20Msps) for SDR experimentation or even a el-cheapo scope and was hoping the SMI would be the interface to do that.

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