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-2
votes
1answer
38 views

Can I read coax signal entering through a coax usb adapter through a program?

I want to enter a coax signal through usb to my laptop and be able to read it so as to stream it through the web so that i can read it elsewhere reversly (using another usb coax adapter and take it ...
0
votes
1answer
39 views

ATtiny85. How do I burn a bootloader? What is the process?

I want to use all six I/O pins of an ATtiny85, that means also using the reset pin as an I/O pin, however, I found out that if I disable the RESET pin, I can no longer program the ATtiny using an ISP ...
0
votes
0answers
44 views

ATTiny85. How do I use the reset pin as an analog input or digital output?

According to this datasheet, the ATTiny85 has 6 I/O pins if we include the reset pin. I used five of them to charlieplex 18 LEDs and I need another one to use as analog input. Would it be possible to ...
1
vote
0answers
40 views

i want to make my own bluetooth shutter release thingy as first electronic project, what do i need? [on hold]

I want to make something like this http://www.amazon.com/JBtek-Bluetooth-Wireless-Control-Shutter/dp/B00JDMIOKO/ looks like it's a tiny microcontroller with a battery in the remote, but i'm not sure ...
0
votes
0answers
28 views

Arduino Broadband Peak Frequency Detector

I'm hoping to build a peak frequency detector, but am wondering whether I'm going to need more than just a couple of antennas. I'd like to be able to detect between 5Hz and 5GHz. So one question is, ...
-7
votes
0answers
43 views

RFID proximity card, Is there any format to under stand the card number abow the RFID proximity card [on hold]

Is there any format to understand the number http://cdn.instructables.com/FXJ/AVIM/GGL7CJF3/FXJAVIMGGL7CJF3.LARGE.jpg of RFID proximity card , is there any hardware tools to read the rfid card. and ...
5
votes
3answers
388 views

What should I use for powering a Raspberry Pi at near space altitudes?

I'm planning a high-altitude weather balloon project (to around 100000 feet) some time down the line to take video and pictures of near space altitudes and I have some questions I need to ask before ...
0
votes
0answers
14 views

What is the maximum frequency of the signal that can be plotted with MATLAB via serial communication from Arduino? [migrated]

I want to plot the various signals sent to Arduino via Serial communication. What is the maximum frequency that can be showed without any signal distortion? I'm basically trying to make a ...
0
votes
1answer
47 views

Atmega32u4 not detected

I have made a Arduino Leonardo clone and have been trying to burn a bootloader into it. I am still unable to connect to the Atmega32u4. It says "Unable to enter programming mode. "Unable to enter ...
0
votes
0answers
9 views

how to program atmega328 with arduino mega 2560? [on hold]

Due to some problems I'm not able to program my arduino uno. But my arduino mega is working nice. So can I program my atmega328 chip with arduino mega?
0
votes
2answers
39 views

Arduino: RS232 Level Shifter or RS2323 Breakout needed?

I am trying to establish communications between an Arduino Mega2560 (Master) and a customised controller (Slave) via a Master-Slave RS232 link using Modbus RTU. The communication should be ...
0
votes
3answers
57 views

controlling 3x BLDC motors

I'd like to control 3x L6234 IC's (3x BLDC motors) with the cheapest microcontroller/board/lauchpad but I'm a bit confused about the requirements needed for the microcontroller. As I understood each ...
0
votes
0answers
36 views

Arduino Types and versions [closed]

I am interested in develop a specific robot to my own work (a simple robot to perform a small tasks to enter this field ) so anyone please can recommend to me which versions of arduino I should use ...
0
votes
2answers
117 views

How do you control 130-size DC motors with an Arduino (seemingly 20A DC motors)?

I'm a little confused on specifications and limitations here... I have 3 (130-size, I believe) DC motors I'm attempting to control with an Arduino. They are running off of a 7.2V NiMH battery pack, ...
3
votes
1answer
102 views

Floating supply and USB ground

I have a somewhat complex circuit controlled by an Arduino, which is supplied by a self powered USB hub (earth grounded 5V supply). A part of the circuit has to be powered by 12-20V DC. When I plug ...
6
votes
1answer
55 views

Millis versus centis on AVR platform

I am building a device on the AVR platform. The device will need some timing information, so I was thinking of reimplementing Arduino millis-like functionality ...
0
votes
0answers
3 views

pcf 8591 arduino and labview [migrated]

Is it possible to connect p0cf 8591 adc / Dac kit to arduino through labview interface for arduino. i want to take data from analog sensor to pcf 8591 to arduino to labview for processing. Arduino is ...
0
votes
1answer
55 views

Integrating simple Bluetooth functionality without microcontrollers

I have recently bought a Bluetooth HC-05 Module, and have followed many tutorials on integrating it with an Arduino, or a microcontroller. However I got interested in whether it is possible without ...
0
votes
1answer
39 views

4015 with Arduino

I'm having multiple issues with this project. I know I've managed to screw it up, but I'll start with the basics. I'm making an LED stacker using an Arduino nano as a substitute for a 555. This ...
0
votes
1answer
62 views

How do I control a brushless DC motor without an ESC with Arduino

Is there a way to control brushless DC motor removed from a CD-ROM drive without using an ESC by using an Arduino.
0
votes
0answers
8 views

Stream audio from smartphone to arduino [migrated]

Is it possible to stream audio from smartphone to my arduino? And if yes, what does it require? Does it require programming from the smartphone side? I know programming on the arduino. I have even ...
0
votes
0answers
21 views

Controlling ESC with Arduino [migrated]

I want to control these motors: hexTronik DT750 Brushless Outrunner 750kv with this battery: Turnigy 2200mAh 3S 25C Lipo Pack and these ESCs: TURNIGY Plush 18amp Speed Controller. I am new to this ...
-1
votes
0answers
24 views

What does the line “while (! Serial);” do in an Arduino program? [migrated]

I'm new to Arduino, and I am trying a couple of tutorials. What does this line do in a program? while (! Serial);
0
votes
0answers
15 views

Help connecting an Arduino and an electronic speed controller [migrated]

We have this controller that we are planning to use with this motor. How do we plug it to the Arduino to make it work? This is a totally new subject for our school team, since we are mostly ...
0
votes
1answer
54 views

Strange problem with JY-MCU (HC-06) Bluetooth module

Short explanation: data sent over the bluetooth serial does not arrive correctly to the Arduino. Yesterday I connected a JY-MCU bluetooth module to my Arduino UNO R3 to test it. I connected the TXD ...
0
votes
1answer
53 views

Arduino Mega & LIN Transceiver (MPC2004)

I am trying to connect an Arduino Mega with another device using a LIN Transceiver. I have decided to use a LIN MPC2004 Transceiver for this. I am now trying to understand the reference design of ...
0
votes
0answers
39 views

Using timers on an Arduino Mega 2560 [migrated]

I'm an amateur and I wish to use timers in my project. I'm using an Arduino Mega 2560 with a touch-sensitive screen with six DS18B20 temperature sensors and a DS1307 RTC (real time clock). I would ...
0
votes
0answers
60 views

Simple Circuit To Light Up OLED

I'm a ICT student and need to make a circuit to light up an OLED. we have developed an OLED but have some trouble with the power supply. We need to have an arduino so we can send an PWM-signal to the ...
2
votes
0answers
72 views

AVR program code location

I'm working with an ATmega328P and I wanted to interface with the flash memory writing data to it with the macros provided by avr-libc. This is the memory map for my chip: I don't understand where ...
0
votes
0answers
44 views

AVR ISP error programming ATmega32u4

I have made a custom board based on the Arduino Leonardo design. It is an exact Leonardo clone. I am trying to program the bootloader via the AVR ISP tool. I am getting the message as follows - ...
0
votes
0answers
4 views

Debugger for Code::Blocks + Arduino [migrated]

I am not very experienced in this, but I was wondering if Code::Blocks has a way of getting a debugger that runs for Arduino chips, specifically. I understand there is Arduino IDE for but does it ...
0
votes
2answers
92 views

How to determine bipolar stepper motor wiring (came from a 3.5 inch floppy drive)?

I have extracted a small stepper motor from a 3.5 inch floppy drive, that I intend to use with an Arduino or Raspberry Pi. The problem is: initially a thin ribbon cable was attached to it, with no ...
0
votes
0answers
14 views

Dumping Code in Arduino YUN in windows 8 Machine [migrated]

I am having Arduino yun , i trying to burn the code in Arduino but after i click on upload , i get the error message:Please Help at first it showing Arduino under the port tab after this message no ...
0
votes
0answers
7 views

How do you connect an Arduino UNO to a Si4703 Tuner Breakout Board? [migrated]

I need to connect a Si4703 Tuner Breakout Board to an Arduino Uno. I have seen sample code for it so I know that it is possible. Here is the website selling the Si4703: ...
0
votes
0answers
18 views

Arduino: How does digitalRead read a value? And what is this value? [migrated]

I have a Arduino Uno with 14 digital pins. I believe they have an output of 5V. But they can also input values. I'm not sure of what exactly it reads when it does that (amperage, voltage ...). Also, ...
0
votes
0answers
11 views

What is the execution context of the function registered via the Wire.onReceive() method? [migrated]

I'm basically wondering if it's OK to Serial.write() or print in the function I register to be called when I2C data is received. I can't seem to find the execution ...
1
vote
3answers
127 views

Sin signal from PWM

I wrote a program in order to use Pulse Width Modulation to simulate a sinusoidal signal. Added a low pass filter to get rid of the noise and the traces of it being a discrete signal. Added a half ...
0
votes
0answers
7 views

Communication between Arduino and iOS device [migrated]

How can I get weight that has been measured by an Arduino device to show up on an iOS mobile or tablet device as a number? Thanks. Warmly, N.
1
vote
2answers
64 views

Measuring power consumption of a design ranging uW to tenths of mW

I want to measure the power consumed by my design ranging from uW to tenths of mW. Power values I wish could be recorded digitally so that I can use them for analysis later. May be another form is ...
0
votes
0answers
17 views

Send Processing color data into Arduino [migrated]

I am trying to send color() data from Processing to Arduino. Here is my code from Processing: ...
0
votes
2answers
77 views

What happens with Arduino digital pin 12 when the power is OFF

I am using the Arudino Uno board as a trigger/delay pulse generator to drive a laser. I read the input pulse train sequence from a test point on the external device using pin 12 set as INPUT. The ...
0
votes
2answers
84 views

I2C Communications with Arduino

My Engineering Design and Development (EDD) class is working on a high altitude balloon (HAB) and my friend an I are in charge of data collection. It looks like we are going to use an Arduino (Uno or ...
2
votes
0answers
113 views

Arduino Leonardo + 3 wire Load Cells + INA125P – Analog Signal Bounce / Noise

I actually have a software background so my experience in electrical engineering is somewhat lacking. Never the less, I have given my first Arduino project a go and for the most part I am quite happy. ...
0
votes
0answers
17 views

arduino manchester encoding two receivers [migrated]

I want to make the arduino receive from two receivers. I am trying to make another pin receive signals from another connected receiver in the pseudo code below, how can this be done?: ...
0
votes
2answers
145 views

Use 555 for additional 40KHz PWM in Arduino

I need to transmit infra red signals using IR LED from my Arduino device. The IR signals consist of PWM 40 kHz periods and "silence" periods of various length (typical IR remote signals). I know ...
0
votes
1answer
60 views

Calculating mV/g of a sensor

I have constructed a piezo-resistive sensor using graphite. I managed to obtain the output voltage of 0-5V by using the ADC of my Arduino to read the sensor. But I have no idea how to calculate its ...
1
vote
2answers
67 views

Shape Memory Metal framed sail

I am working on a costume prop that utilizes a triangular cut sheet of emergency blanket spined with a single 12" long, .04" dia piece of nitinol wire that has a transistion temp of 115deg F. My plan ...
0
votes
2answers
75 views

Controlling AC mains using Arduino and removing control easily

I am planning to for an Arduino to read status of a switch, and accordingly switch on and off AC appliance, for a demo purpose. I want to add a feature to it of easy recovery to manual switch control. ...
0
votes
0answers
48 views

Canon EF SPI data protocol and IS activation

I have been trying to find information about Canon EF data protocol between lens and body. So far I have seen examples how to control focus or aperture but I would like to know how IS is activated. Is ...
0
votes
1answer
72 views

Detect alternating current using one contact only and arduino analog input

I am trying to setup an arduino so it can detect an AC where it only has access to one pole. (kind of like these "electricians screwdrivers" that you put in one of the connections of an electric ...