Show Posts
Pages: 1 2 3 [4] 5 6 ... 590
46  Using Arduino / Storage / Re: Save serial.println to file on: August 11, 2014, 04:38:46 pm
So the only way is to copy and paste. I had hoped that I could save it to a simple textfile or a datasheet of some sort.

The EASIEST way is to copy and paste.

 You can use a third-party terminal emulator (such as  the Putty mentioned above), or write a custom program in whatever language you like to read from the serial port and write to a file, or add an SD card to your project and write directly to a file which you could then import into a PC, or use and Arduino Leonardo and emulate a USB keyboard to type the data directly into the program of your choice.
47  Using Arduino / Sensors / Re: How to use Ultrasonic sensor with IR control on: August 11, 2014, 04:11:14 pm
However, by submitting the code, the ultrasonic no longer works ...

Show your sketch.
48  Using Arduino / Motors, Mechanics, and Power / Re: Lifting up to 100 pounds with motor on: August 11, 2014, 03:32:40 pm
I will like to know if there is a way to lift a person with arduino.
Yes.  The Arduino can trigger a relay (or Solid State Relay, or Power MOSFET) to turn a motor on.

If there is which arduino & which motor should I use?
Any Arduino will work.  You need a motor and gear combination that will provide sufficient torque to lift the weight.

Would I need a battery?
You will need some source of power, either a very substantial battery or AC mains.

What RPM will I need to reach?
That will depend on how fast you want to raise the person and the circumference of your winch.  A larger diameter winch will lift faster at a given RPM but will require more torque.

If you want any specific recommendations you will need to say how heavy the person is (including clothes, harness, and rope/cable), how fast you want to lift, and how high you want to lift.
49  Using Arduino / Storage / Re: Save serial.println to file on: August 11, 2014, 03:24:00 pm
Its great but how do I save it to a cvs file?

Like I said before:
You can copy and paste from Serial Monitor.
50  Using Arduino / Project Guidance / Re: Ultasonic sensors on: August 10, 2014, 07:43:58 am
I've got three sensors. Two need to recieve and one only sends signal, so they need to start there cycle at the same time, if I'm correct, so that they don't time out or so they are in sync.

Connect the three Trigger pins together.  Remove the senders from the two units that you want to be Receive Only.  Trigger all three by pulsing the Trigger pins.  Connect the two Echo pins to two digital input pins and alternate between reading the two inputs.

If you bought units that have a combined Trigger and Echo pin, spend $6 to get three of the the HC-SR04 model:
51  Using Arduino / Project Guidance / Re: Raspberry Pi on: August 09, 2014, 08:26:05 pm
Did you not bother to try Google?
52  Using Arduino / General Electronics / Re: Adafruit neopixel ring and capacitors. on: August 09, 2014, 01:43:27 pm
You can read about it here:

"Before connecting a NeoPixel strip to ANY source of power, we very strongly recommend adding a large capacitor (1000 µF, 6.3V or higher) across the + and – terminals. This prevents the initial onrush of current from damaging the pixels."
53  Using Arduino / Microcontrollers / Re: Failing to burn bootloader on ATmega328P-PU using Arduino Mega 2560 on: August 09, 2014, 01:39:40 pm
It might be time to invest $4 in a USBasp programer from eBay.
54  Using Arduino / Programming Questions / Re: Problem compiling code with DS3231 library on: August 09, 2014, 01:30:31 pm
Do you, perhaps, have the old DS3231 library still installed?
55  Using Arduino / Networking, Protocols, and Devices / Re: Adafruit GPS breakout board works with Uno but not Leonardo on: August 09, 2014, 01:20:58 pm
Did you move the serial connections to Pin 0 and Pin 1 (Serial1) on the Leonardo instead of Pin 2 and Pin 3 (SoftwareSerial(2,3)) on the UNO?
56  Using Arduino / Microcontrollers / Re: Failing to burn bootloader on ATmega328P-PU using Arduino Mega 2560 on: August 09, 2014, 01:11:59 pm
Disabling Auto-Reset: 
    Capacitor (1 to 10 microfarad) between RESET (+) and Ground (-)
Some people prefer a low-value resistor (120 ohms?) between RESET and +5V.

Note that the SPI pins of the Arduino Mega are NOT pins 11-13 like on the Arduino UNO.  Pin 10 is still used for RESET on both.  The pins going to Pins RESET, 11, 12, and 13 on the target come from MEGA Pins 10, 51, 50, and 52 respectively.
57  Using Arduino / LEDs and Multiplexing / Re: Self-made seven segment LED display query on: August 09, 2014, 08:46:29 am
If you want to have a common Ground for all 7 segments of a digit, that would be a Common Cathode (-) configuration, not Common Anode (+).

The high-side switch (per segment position) would be a PNP transistor.  The only way to turn that off would be to raise the Base of the transistor to 12V.  You can use a pull-up resistor to bias the Base to +12 and then use a small NPN transistor to drag the Base to Ground to turn on the PNP transistor.
58  Using Arduino / Project Guidance / Re: Powering while charging on: August 09, 2014, 08:30:50 am
This product page includes schematics:
59  Using Arduino / Installation & Troubleshooting / Re: No Coms Avaiable on: August 09, 2014, 08:27:28 am
What model Arduino are you using?  Have you tried a different USB cable and USB port?
60  Using Arduino / Project Guidance / Re: Is my Digital PWM Pin D9 burned? on: August 09, 2014, 08:24:52 am
Sounds like a pin conflict, wiring error, or a coding error in your sketch.  Without seeing the entire sketch and the wiring of everything connected to your Arduino it will be hard to guess what has gone wrong.
Pages: 1 2 3 [4] 5 6 ... 590