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61  Using Arduino / Project Guidance / Re: Determining required RAM size on: June 02, 2014, 07:37:43 am
The current version IDE Arduino 1.5.6-r2

Code:
void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}
Quote
Sketch uses 466 bytes (1%) of program storage space. Maximum is 32,256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2,039 bytes for local variables. Maximum is 2,048 bytes.
62  Community / Bar Sport / Re: Post your code on: June 02, 2014, 05:20:38 am
Glad you guys like it. 

I really feel Mike did the hard part.  smiley-wink
Good Job, James 1+
63  Using Arduino / Project Guidance / Re: Moving ATX powersupply pcb to another box on: June 01, 2014, 09:02:56 am
This site show how you can avoid wasting time converting old PC ATX power supplies into benchtop power supplies. The answer is not to convert them at all, but make an adapter unit.

This also saves time if you damage a PS while modding it. If the PS was working when you began modding it, and then a bit of ESD fries something, or a slip of the drill damages it while making holes in the original PS's case, etc, and then you get all done and turn it on...nothing. Then you wasted all that time doing the mod. Forget all that!! Just make one (or two!) of these adapters unit.
64  Using Arduino / Project Guidance / Re: 2x3-pin header source on: May 30, 2014, 06:38:44 pm
Is it something like is?

http://www.mouser.com/3M/Connectors/Headers-Wire-Housings/_/N-ay0loZscv7?P=1z0zp4dZ1z0wxp6Z1z0x3z4Z1z0wxnw&FS=True
65  Using Arduino / Project Guidance / Re: Arduino for extensive Image processing and suitable camera. on: May 28, 2014, 10:38:41 am
Or using this Intel Galileo with 256MBytes DRAM
http://arduino.cc/en/ArduinoCertified/IntelGalileo
66  Using Arduino / Project Guidance / Re: Arduino for extensive Image processing and suitable camera. on: May 28, 2014, 10:22:50 am
With Atmel’s AT90S8515 microcontroller and a black-and-white digital camera with a resolution of 123 x 128 pixels, operating at a rate of one to 30 frames per second.
http://www.atmel.com/images/issue4_pg39_43_robotics.pdf
67  Using Arduino / Project Guidance / Re: Help with sampling using analog port (noise from finger) on: May 28, 2014, 08:22:58 am
http://arduino.cc/en/Tutorial/PWM
http://playground.arduino.cc/Code/PwmFrequency
4)   Repeat measurement with input from static  voltage from analog output (PWM)

Maybe there is something I do not understand? How do i go about doing this?
Make one of the pin output PWM and connect analog port to that pin.

68  Using Arduino / Project Guidance / Re: Arduino Onboard Battery on: May 28, 2014, 05:51:02 am
Otherwise, could you suggest a similar product that might do the trick.
https://learn.adafruit.com/li-ion-and-lipoly-batteries?view=all


https://www.sparkfun.com/products/10711


http://www.seeedstudio.com/wiki/Energy_Shield


http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2127566_-1
69  Using Arduino / Project Guidance / Re: Recomended book to learn programming arduino on: May 27, 2014, 07:42:09 am
Some resource for you to learn programming arduino

http://playground.arduino.cc/Main/TutorialList

http://forum.arduino.cc/index.php?topic=1539.0
70  Using Arduino / Project Guidance / Re: Battery monitor on: May 27, 2014, 07:27:35 am
Using this
Step-Up/Step-Down Voltage Regulators
Buck-boost and SEPIC converters work with input voltages that are higher than, equal to, or lower than the regulated output voltage, making them especially well-suited for battery-powered applications in which the battery voltage begins above the desired output voltage and drops below the target as the battery discharges.

Will enable you to have constant voltage for your Arduino Uno.
71  Using Arduino / Project Guidance / Re: Urgent beginner Question, please help.. on: May 25, 2014, 08:40:16 pm
Can I ask if the relay = transistor ? Sorry I am a noob on electronics, I know more about fluid mechanics..
These are relays

This is the circuit that transistor control the relay

These are Transistors



72  Using Arduino / Project Guidance / Re: Urgent beginner Question, please help.. on: May 25, 2014, 07:05:47 pm
How you control the "3/2-way solenoid valve"? by DC voltage(DC12V /24V) or AC voltage?(AC 110V/230V) how much current?
Please provide datasheet for the solenoid valve.

Be it DC or AC, you can use relay to control them.

http://playground.arduino.cc/uploads/Main/relays.pdf
http://www.instructables.com/id/Connecting-a-12V-Relay-to-Arduino/?ALLSTEPS

or if it is DC solenoid, you can control it with transistor, MOSFET, etc
http://playground.arduino.cc/Learning/SolenoidTutorial
73  Using Arduino / Project Guidance / Re: Switching / monitoring multiple mains outlets & environmental. on: May 25, 2014, 12:17:11 am
Here are some of the links

http://www.panu.it/ardupower/
http://openenergymonitor.org/emon/buildingblocks
74  Using Arduino / Project Guidance / Re: Random() gives the same number in a library, no analog pins available for seed on: May 24, 2014, 06:59:51 pm

If you using this "The reliable but not very sexy way to seed random"
Please add in this line
Code:
#include <avr/eeprom.h>
75  Using Arduino / Project Guidance / Re: Changing an LED color at a certain time (time based visual alert) on: May 21, 2014, 05:38:36 pm
The Time library is a software RTC. Additionally, it can be interfaced to a hardware RTC, but this is not required. As noted, without additional hardware, accuracy is dependent on the system clock.
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