Show Posts
Pages: 1 [2] 3
16  Topics / Device Hacking / Re: How to Create real home product without Arduino Uno R3 on: February 10, 2013, 06:05:34 am
Now with help of tutorials of http://www.jo3ri.be/tutorials i'm able to create my first experience of Soldering and making my own version of ATMega328P-PU chip on perf board which runs fine with blinking LED example. Till this i'm fine and also able to create 5V Regulator from 7-12 VDC wall wart. Now, just looking to pin mapping of Arduino with ATMega 328P-PU controller, as works with Pin 13 of Arduino mapped on perfboard, is it possible to use same mapping of pin for attaching my own instruments/parts like PIR Sensor or LDR on any other pins ? what does all other pins means in simple language ?

I mean just like LED blinking example works on perfboard, can i use all other pins to attach LDR or PIR or any other sensor with other pins or it may require other register/cap to use pins of controller directly with perfboard ?
17  Using Arduino / Sensors / Re: Reading IR sensor, returns inconsistent readings on: February 06, 2013, 11:14:36 am
ham... but i didn't got i read this post afterwards and posted my same question in another post. I want to use IR Led (White is emmiter i think and black is collecter) and i want to use it for pulse detection or say on-off switch can it be used for distance measure too ? I know Ultrasonic sensor is for that...
18  Using Arduino / Sensors / Re: Infrared Reflectance Sensor on: February 06, 2013, 11:08:06 am
Being new to IR Led White is i think emmiter which gives signals and black is receiver which receives signals i think, after searching on net, i didn't got any good code to be used with arduino uno so that i can run my own codes for simple task like on and off or cut-off pulse detection etc.

1. Can anybody help me out for how to use IR Leds black and white without TSOP 17xx ?

2. if i connect TSOP (3 PIN 1: Ground, 2: 5V, 3: Output) it catches signals but when i give output pin to analogread to pin A0 or arduino, it is not reading anything !!!.

19  Topics / Device Hacking / Re: How to Create real home product without Arduino Uno R3 on: January 27, 2013, 09:54:11 am
Now, with help of http://www.jo3ri.be/tutorials which is really very good example in one page without anything you need... no more tutorials .... It worked fine with Blinking LED example too. Now i'm not clear with output of other pins of ATMega 328P-PU which comes with Arduino Uno R3. Like my LED Worked fine, will it work with other pins like if i want to use Ultra Sonic, can i simply use pins like we use in Arduino or something more might be done to use it like arduino ? Just pin mapping chart to use and use like arduino uno ?

Please suggest as i have made my first 7.5VDC to 5VDC power supply on bread board with help of this forum, ATMega328 on bread board with LED example and now want to move further but before try, want to know more !!!

Thanks in advance for your help.
20  Using Arduino / General Electronics / Re: im, running out of pins on: January 25, 2013, 09:56:19 am
Instead of answering, questening, how we can run LCD on two pins only ?
21  Using Arduino / General Electronics / Re: Difference between Arduino 5V power and output of 7805 5V power on: January 21, 2013, 08:45:59 am
Yes perfectly works well ... (I think i was giving resistor when grounding while in this case, it is to +ve) Thanks a lot but i will be in more better way for my further proceeding if you can let me understand why this just 2 cap addition worked fine ? or just logic behing this so that i can proceed to work with http://www.instructables.com/id/Perfboard-Hackduino-Arduino-compatible-circuit/?ALLSTEPS where i think that i will attach PIR motion sensor to get activate my door bell or passage light with LDR + PIR + Relay with perf board version to get more in-depth understanding for my first project on my own, without arduino board. and what other precautions should be taken care in that type of work.

Thanks to tom, jimboza, Zapro, fungus for answering my quety... i feel much better now and you may help me in further understanding and extending knowledge in future too please.
22  Using Arduino / General Electronics / Re: Difference between Arduino 5V power and output of 7805 5V power on: January 21, 2013, 08:22:02 am
It shows 0.25A @ 20m setting and 0.2 at 200m .... i'm not sure about Ampere setting on multimeter !!! there is 2000u, 20m and 200m really sorry for that but reading site suggested by JimboZA but due to non-electronics field, it takes much time than required....
23  Using Arduino / General Electronics / Re: Difference between Arduino 5V power and output of 7805 5V power on: January 21, 2013, 07:55:12 am
Zepro i think i connected is right, 1st pin is in of wall wart 7.5V 2nd is ground and last or 3rd is output of 5V. But i'm not sure that i done this one right : 5V > +ve or bigger leg of LED and ground leg or shorter led to 220 ohm register to ground.

5V > +ve of Led, -ve or 0V -> Register -> ground.

I'm not sure of above line do i need to connect Register like this one ?

5V> Register > Longer Leg of LED, shorter leg directly to ground ?
24  Using Arduino / General Electronics / Re: Difference between Arduino 5V power and output of 7805 5V power on: January 20, 2013, 11:41:02 am
Very much true .... that's new-bee like me !!! and this even can't helped me due to new to electronics http://www.sparkfun.com/tutorials/297 and proper understanding is too low... i accept this.
25  Using Arduino / General Electronics / Re: Supply for handmade arduino on: January 20, 2013, 11:23:22 am
This tutorial may help you ....

http://www.sparkfun.com/tutorials/297

http://www.instructables.com/id/Perfboard-Hackduino-Arduino-compatible-circuit/
26  Using Arduino / General Electronics / Re: Difference between Arduino 5V power and output of 7805 5V power on: January 20, 2013, 11:15:01 am
Yes Tom, I also see no reason to fry my two LEDs.... my wallwart give true result as i checked with multimeter too with Center +ve it is DC1.5-12V 10W max and 500mA Max.

I tried one more think, i gave power of 7805 to 10K pot and output of 10K pot to LED and it worked at max, 10K or upto 5K but if i go less than that, led fired again !!!

Thanks Tom for very good answer....

Thanks all for answer and help me out..
27  Using Arduino / General Electronics / Re: Difference between Arduino 5V power and output of 7805 5V power on: January 20, 2013, 08:37:48 am
Although not good at fritzing, tried to make it. What i done is, take 7.5 V in from wall wart, given input to LM7805 linear voltage regulator, got 5V out pin from it, that pin to Anode (Longer pin of LED) and ground to 220 Register.

Wall Wart 7.5V --> LM7805 Regulator --> 5V out to Longer leg of LED, Shofter Leg + 220 Ohm Registor to ground.
28  Topics / Device Hacking / Re: How to Create real home product without Arduino Uno R3 on: January 20, 2013, 07:15:15 am
True, got very good tutorials too for http://www.instructables.com/id/Perfboard-Hackduino-Arduino-compatible-circuit/ running projects without Board which i was seeking. but now stuck in electronics !!!

I found one interesting point that if i connect Led to Pin 13 + ground, it runs fine but when i do same with LM7805 which gives output of 5V through wall wart, i don't get same result even after connecting 220 or higher ohm register, my LED burns and i found no way to limit current instead of only voltage.

Can anybody suggest how to use output of 7805 on breadboard to light single LED ?
29  Using Arduino / General Electronics / Difference between Arduino 5V power and output of 7805 5V power on: January 20, 2013, 04:01:46 am
Dear Friends,

I try blink example of Pin 13 of Arduino Uno R3 and it run fine as well with other pins for LED. When i tryed to give power through simple power regulator of LM7805 with 10K Pot in VDD adn 220ohm to GND to LED, led burns !!!. I think as per ohm's law, V= IR where V= 5 as output of 7805, I = 20mA for LED to bright so only 220 or 270 ohm register to ground must work with this too to bright LED.

Friends, why same 5V output from arduino uno r3 works and output of 7805 5V is not working ? even simple 5V from arduino say pin 13 and ground near to pin 3 works directly with led without any register attached !!!

I know i'm missing some of points of electronics but stuck up what is missing please help.

Regards,

VBN
30  Topics / Device Hacking / How to Create real home product without Arduino Uno R3 on: December 23, 2012, 01:24:32 am
I found very good hardware for learning and it's really fun too. Now, i brought PIR Motion Sensor and Arudino Uno R3 and PIR example running fine with my board. Now, i want to make door bell with the same with my all doors and that requires 3-4 PIR and 3-4 Uno. I think there must be way by which i can make my own soldering with chip only and there must not needed Arduino to be attached to every room to save some cost.

As i'm novice for electronics, i don't know how to use only ATmega328P-PU chip and what will be minimum requirements of parts for my PIR motion sensor to be used as door bell.

Can anybody advise me how i can go ahead with this example ?

Regards and thanks in advance  smiley-confuse
Pages: 1 [2] 3