Search found 28 matches

by aretallack
Mon Jun 01, 2015 11:47 pm
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond The Arduino 3 - Guessing Game
Replies: 3
Views: 2686

Re: Beyond The Arduino 3 - Guessing Game

Thanks Robert. An interesting experiment! The BBCode came out fine. Why don't you mail this through to the editor, it may be useful to other readers in the letters or Q&A.

Thanks for taking the time to do this and for sharing!

Cheers
Andrew
by aretallack
Sun May 31, 2015 2:04 am
Forum: General Discussion
Topic: Lithium battery with no cell sensing for charge monitoring..
Replies: 6
Views: 1755

Re: Lithium battery with no cell sensing for charge monitori

Hi

Looks interesting but seemed like it still needed some kind of charge management?
by aretallack
Sat May 30, 2015 6:31 am
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond Arduino - What should I cover next?
Replies: 13
Views: 5300

Re: Beyond Arduino - What should I cover next?

Hi Robert You're correct on the simulation - it has no hardware inputs, and therefore no readings. You can simulate button presses etc. within the simulator by changing the register values. A debugger is what you really would need - I use an Atmel ICE basic, and it does the trick. Alternatively, if ...
by aretallack
Sat May 30, 2015 6:21 am
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond The Arduino 3 - Guessing Game
Replies: 3
Views: 2686

Re: Beyond The Arduino 3 - Guessing Game

Thanks, Robert, for sharing. It's interesting to see an experiment that validates the info on the datasheet. I don't know enough of the details of the innards of the ATmega328, but I do know that the ADC uses a "sample and hold" circuit - this "grabs" the input voltage, and then keeps it at a steady...
by aretallack
Tue May 26, 2015 11:15 pm
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond Arduino - What should I cover next?
Replies: 13
Views: 5300

Re: Beyond Arduino - What should I cover next?

Great, thanks @robralston. Great idea on the debugging, and I'm working on an I2C article at the moment so should have that out in the August edition. Debugging and simulation are useful tools, so will definitely add to the list! Pleased you solved your problem with the guessing game. Embedded syste...
by aretallack
Sun May 24, 2015 11:29 pm
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond Arduino - What should I cover next?
Replies: 13
Views: 5300

Re: Beyond Arduino - What should I cover next?

Hey Casey

Great! Thanks for the background - funny how you can talk to the most hardened embedded developers, and they still love working with LEDs!

The PoV and LED matrices is a great idea - thanks. Could include it in an article on shift registers and charlieplexing maybe.

Cheers
Andrew
by aretallack
Sun May 24, 2015 11:24 pm
Forum: General Discussion
Topic: Serious toy coming... Can you spare $9 ?
Replies: 3
Views: 5371

Re: Serious toy coming... Can you spare $9 ?

This looks great, particularly the price point - although if you plan to do more than embed it in a project it seems you need to buy add-ons to make it really useful. I was really tempted, but then thought it would end up in the same drawer as my PCDuino, Raspberry Pi, etc... :sad:
by aretallack
Sun May 24, 2015 11:22 pm
Forum: Robotics
Topic: R2 D2 new cousin...
Replies: 2
Views: 2232

Re: R2 D2 new cousin...

That's pretty impressive - particularly since the "head" doesn't remain vertically above the ball, but can move down from the centre of gravity.
by aretallack
Fri May 22, 2015 1:50 am
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond Arduino - What should I cover next?
Replies: 13
Views: 5300

Beyond Arduino - What should I cover next?

Hi! I'm really enjoying writing the "Beyond Arduino" series of articles - part 4 is just out in the June edition. I've had some great feedback (and suggestions) from readers, and would love to hear your thoughts as well. So far we've covered the breadboarding of an MCU, the move to Atmel Studio and ...
by aretallack
Thu May 21, 2015 2:27 am
Forum: General Discussion
Topic: Maglite Flashlight Policy Changes
Replies: 10
Views: 2589

Re: Maglite Flashlight Policy Changes

Not sure about in other parts of the world, but here in SA the Maglights have been surpassed by the LED Lenser brand. I love my old Maglight, but can't deny that the my LED Lenser has the edge on the Maglight.
by aretallack
Tue May 05, 2015 12:02 am
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond the Arduino - AVR article
Replies: 10
Views: 24103

Re: Beyond the Arduino - AVR article

Yes, now I understand the difference between (0<<3) or ~(1<<3). I appreciate your answering questions; I'm going to have a lot of them. Reading the data sheet raises many questions. Those datasheets! Happy to help, it takes a while to start thinking like someone who spends a living writing datashee...
by aretallack
Thu Apr 30, 2015 10:21 pm
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond the Arduino - AVR article
Replies: 10
Views: 24103

Re: Beyond the Arduino - AVR article

Thank you for the articles. Been having trouble getting into Atmel Studio. You paved the way Excellent! It's not that hard once you get stuck in, and so much more flexibility and control. I'd never go back :cool: Bought an AVRISPmkII from Atmel but didn’t pay attention to the shipping costs so I re...
by aretallack
Fri Feb 27, 2015 6:20 am
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond the Arduino - AVR article
Replies: 10
Views: 24103

Re: Beyond the Arduino - AVR article

Thanks for the interest in the series @Selmaware. I should have been clearer on the bootloader. @dacflyer is right, you can either buy an ATmega328P with a bootloader already loaded (or use the microcontroller from your Arduino UNO), or burn the bootloader onto a new ATmega328P. I had put together a...