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31  Using Arduino / Project Guidance / Re: Rc light kit How do I make it so I have a programming mode to cal. help plz read on: July 21, 2013, 10:30:02 am
RC Channel calibration

http://rcarduino.blogspot.com/2012/05/interfacing-rc-channels-to-l293d-motor.html

Duane B
rcarduino.blogspot.com
32  Using Arduino / Project Guidance / Re: A Mini Piano on: July 21, 2013, 10:22:30 am
Hi,

Why not hack a cheap keyboard, I used a 37 key one, but i have looked at smaller ones with 1 or 1 and a half octaves.

http://rcarduino.blogspot.com/2012/10/five-dollar-synthesiser.html

Duane B
rcarduino.blogspot.com
33  Using Arduino / Audio / Re: Nano Groovebox on: July 18, 2013, 01:04:10 pm
Demo ?

Duane B

rcarduino.blogspot.com
34  Products / Arduino Due / Re: Arduino Due DAC Tutorial Problem on: July 18, 2013, 08:22:46 am
If you like the sounds that makes, here is a very similar but slightly more complex approach that make a far more entertaining set of sounds. Justvbe very careful what you connect your DAC output to, a few of us have burned them out.

http://rcarduino.blogspot.ae/2012/11/quick-and-dirty-synth-for-arduino-due.html

Duane B

rcarduino.blogspot.com

35  Using Arduino / Motors, Mechanics, and Power / Re: RC receiver decoder on: July 18, 2013, 08:03:27 am
rcarduino.blogspot.com

There are even some loopback tests, faqs and lots of troubleshooting advice if you read the comments.

Duane B

36  Using Arduino / General Electronics / Re: Servo Signals on: July 11, 2013, 12:23:19 am
More power to the internal motor allowing it to move to position faster and hold its position with greater torque. Most servo packaging advises that performance will be better at 6volts, but servo life will also be shorter. Your choice.

Duane B

rcarduino.blogspot.com
37  Using Arduino / General Electronics / Re: RC ESC voltage boost? from 5v to 9V???? on: July 09, 2013, 08:19:07 am
Its easy enough to use a LDO (low drop out voltage regulator) to turn the output from the LIPO to 9 volts, 5 volts or whatever you want, just select and LDO with your required output.

I do this all the time, I usually connect my Arduinos to the balance plugs of my Lipos and use 7805 (old school regulator) or LDOs to drop the voltage to 5volts for the UNO. Works very well for me.

I am terrible at videos, but here is one that talks a little about how I wire it -



Duane B

rcarduino.blogspot.com

38  Using Arduino / Programming Questions / Re: led blinks contentiously i want it to blink 2 or 3 times only on: July 09, 2013, 08:05:34 am
Its probably because you are using a contentious LED

Duane B

rcarduino.blogspot.com
39  Using Arduino / Programming Questions / Re: Need a S-I-M-P-L-E example of using PinChangeInt or ooPinChangeInt on: July 07, 2013, 02:23:53 am
What Arduino are you using, not all of them support pin change int on every pin.

See here for an example using multiple pin change ints and the last link for a guide to which pins can be used on which Arduinos -

Background - because of the way the class is written, you dont need to know that its a class, just use a slightly different way of calling the functions -
http://rcarduino.blogspot.ae/2012/03/need-more-interrupts-to-read-more.html

Example usage
http://rcarduino.blogspot.ae/2012/04/how-to-read-multiple-rc-channels-draft.html

Usable pins
http://rcarduino.blogspot.ae/2013/04/the-problem-and-solutions-with-arduino.html

Duane B

rcarduino.blogspot.com
40  Using Arduino / Project Guidance / Re: Teensy 3.0 help. on: July 03, 2013, 07:25:51 am
Here is how I broke out the pins to headers on mine using single strand wire and standard female headers -

Topside


Underside


There is a little Gorilla Glue used to hold the headers together where they are doubled and tripled.

Duane B

rcarduino.blogspot.com
41  Community / Bar Sport / Re: Mutated Fish (Perch)?! on: July 03, 2013, 01:12:22 am
In the UK we have a lot of rainbow trout fisheries which stock a small number of blue and also golden trout. These are rainbow trout that have been selectively bred to loose one or more pigments so they are no longer rainbow just blue or gold.

EDIT: Link added
http://jhered.oxfordjournals.org/content/97/1/89.full

I assume this colour variation through lose one or more pigments can also occur naturally and in most species.

Went fishing yesterday, 44 degrees, lots of bites but only one small snapper landed.

Duane B

rcarduino.blogspot.com


42  Using Arduino / Project Guidance / Re: RC transmitter surrogate on: July 03, 2013, 12:55:19 am
Start here -

http://rcarduino.blogspot.ae/2012/01/how-to-read-rc-receiver-with.html

Duane B

rcarduino.blogspot.com
43  Using Arduino / Project Guidance / Re: RC Receiver channel output to Arduino to manipulate signal on: June 28, 2013, 06:13:44 am
What you have described is exactly what a lot of transmitters have built in, its not very effective as there is no intelligence just a dumb pumping without any consideration of what is actually happening to the car.

If you really want to implement this with arduino, its easy but also quite ineffective.

What car are you using ?

Duane B

rcarduino.blogspot.com


44  Using Arduino / Project Guidance / Re: RC Receiver channel output to Arduino to manipulate signal on: June 27, 2013, 03:00:21 am
Hi,

Lots of transmitters even budget ones have an ABS Function built in, check if yours does.

If your model uses servos for brakes I think they might be too slow to implement a useful ABS function, a better approach would be to use your transmitter 'end point adjustments' to reduce the braking power so that you cannot lock up.

If your convinced that your servos are fast enough then that there are a few projects I have published which provide active control of RC Cars, this being one example -

http://rcarduino.blogspot.ae/2012/07/rcarduino-yaw-control-part-2.html

or this with the addition of a few lines of code to reduce the braking power as each light is activated

http://rcarduino.blogspot.ae/2013/06/rc-arduino-traction-control-traction.html

These are better approaches because they activley sense what is happening to the car before deciding how much to intervene in the signal.

Duane B

rcarduino.blogspot.com
45  Using Arduino / Project Guidance / Re: Arduino code for fuzzy logic controller on: June 25, 2013, 06:37:20 am
If only my professors had accepted that definition I could have saved a lot of time in the past. Of course its the same with neural networks and genetic algorithms and even money in the bank is just 0s and 1s - we should all just give up and go home now.

Duane B

rcarduino.blogspot.com
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