Search found 2577 matches

by brad
Sat Dec 17, 2016 8:10 pm
Forum: The off topic lounge
Topic: Some History on Electricity
Replies: 2
Views: 4595

Re: Some History on Electricity

I thought it may have been a war between conventional and electron current flow.

There is a high voltage DC submarine cable between the Australian mainland and Tasmania:

https://en.wikipedia.org/wiki/Basslink
by brad
Wed Dec 14, 2016 7:50 pm
Forum: The off topic lounge
Topic: Selecting a Chromebook
Replies: 1
Views: 3900

Re: Selecting a Chromebook

emmc is certainly the cheaper of the two memory devices. so if they are advertising it comes with SSD and in fact has emmc, then I would consider that false advertising. you could actually program arduino's on a chromebook with codebender: https://codebender.cc/ however they are closing down codeben...
by brad
Wed Dec 14, 2016 7:46 pm
Forum: Brads Projects University
Topic: soldering SOJ (& similar) parts without special equipment
Replies: 7
Views: 12447

Re: soldering SOJ (& similar) parts without special equipmen

acetone and q-tips are fantastic for bringing them up all nice and shiny!
by brad
Wed Dec 14, 2016 7:44 pm
Forum: Generating Video Signals
Topic: Survey of Video Generation Possibilities
Replies: 21
Views: 23574

Re: Survey of Video Generation Possibilities

I have made different fonts for LED screens before and I know what you mean about trying to get readable characters in the fewest pixels possible. I found you can get alot of characters in a 3x4 pixel grid however there are some that just don't work correctly like M and W
by brad
Sun Dec 11, 2016 8:27 pm
Forum: Your projects
Topic: Christmas ornament project
Replies: 29
Views: 17172

Re: Christmas ornament project

Sorry I'm just now back after a busy week. Good to see things are working out well and good pickup with the Brown Out Gav :)
by brad
Sun Dec 11, 2016 8:24 pm
Forum: Brads Projects University
Topic: soldering SOJ (& similar) parts without special equipment
Replies: 7
Views: 12447

Re: soldering SOJ (& similar) parts without special equipmen

What solvent / cleaner are you using after soldering Garth?
by brad
Mon Dec 05, 2016 7:14 pm
Forum: The off topic lounge
Topic: Teaching programming using LUA
Replies: 1
Views: 4116

Re: Teaching programming using LUA

Scratch is also good for kids:

https://scratch.mit.edu/
by brad
Mon Dec 05, 2016 1:42 am
Forum: Arduino
Topic: Any way to get this sensor working again?
Replies: 1
Views: 3720

Re: Any way to get this sensor working again?

Have you tried measuring the voltage of the 5V power supply when everything is running? If the power supply can't handle the amount of current needed by the motors, then the voltage will drop down quite a bit below 5V.
by brad
Sun Dec 04, 2016 8:38 pm
Forum: Your projects
Topic: Christmas ornament project
Replies: 29
Views: 17172

Re: Christmas ornament project

I just found some code from a number of years ago which should really help you out. It uses a different microcontroller however you should be able to simply change the ports to the ports you are using for the RED cathodes, Green cathodes and the common anodes - then change the microcontroller detail...
by brad
Wed Nov 30, 2016 9:44 pm
Forum: Your projects
Topic: Christmas ornament project
Replies: 29
Views: 17172

Re: Christmas ornament project

I apologise for not being around much, hopefully this coming weekend i'll have some spare time to sit down and have a good look at your code and even test it out on some hardware.
by brad
Wed Nov 30, 2016 6:05 pm
Forum: Great video clips
Topic: Building a 24x24x24 led cube
Replies: 1
Views: 4693

Re: Building a 24x24x24 led cube

I imagine that would have been quite expensive to have PCB's made that large - certainly seems to be a much quicker way of making an LED cube compared to using individual wires though!
by brad
Sat Nov 26, 2016 8:32 pm
Forum: Your projects
Topic: Christmas ornament project
Replies: 29
Views: 17172

Re: Christmas ornament project

just so I am following along, you currently have nothing being displayed on the matrix - and the circuit you are using is exactly the same as the design files you posted, is that right?
by brad
Sat Nov 26, 2016 8:28 pm
Forum: Online Shopping
Topic: World smallest Time-of-Flight ranging and gesture detection
Replies: 1
Views: 4975

Re: World smallest Time-of-Flight ranging and gesture detect

Correct me if i'm wrong, but could this be used in place of an ultrasonic transceiver?
by brad
Sat Nov 26, 2016 8:23 pm
Forum: The off topic lounge
Topic: Edison Bulb Still Burning After 100-Plus Years
Replies: 5
Views: 6194

Re: Edison Bulb Still Burning After 100-Plus Years

I guess they rely on consumers not bothering to check hour counts so they can really market it however they want and people won't do anything about it.
by brad
Sat Nov 26, 2016 8:22 pm
Forum: 10x8 LED Sign
Topic: Help wanted 74HC595 LED sign
Replies: 3
Views: 15504

Re: Help wanted 74HC595 LED sign

One question I have is that you need to be entering in at least one logic 1 to begin with so this data can be shifted through the 595 chips. How does this logic 1 get in there to begin with?