Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.
5
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0answers
42 views
Arduino serial communication protocol design
I make a drum sequencer interface for electronic music.
It uses an arduino mega as it's microprocessor, and currently it interfaces to a Processing program that I wrote for serial communication. ...
2
votes
1answer
79 views
Arduino LED brightness switching using pushbutton
I'm trying to switch between 4 different brightness of an LED using an Arduino Uno. I've used analogWrite and not digitalWrite with PWM. The problem i'm facing is that the brightness does not switch ...
1
vote
1answer
64 views
Circuit to drive a speaker
I am looking for a circuit to drive a speaker to make a fairly loud simple tone - a square wave driven from a microcontroller (Arduino/ATMega).
There are obviously a billion chips and amplifiers out ...
2
votes
2answers
91 views
Arduino PWM shield with npn transistors
I'm using a PWM shield (http://www.practicalmaker.com/products/arduino-shields/pwm-shield-assembled) which allows to extend the number of PWM pins for an Arduino.
In my project I'm using NPN TIP120 ...
-4
votes
0answers
49 views
Ideas for a project combining arduino and FPGA [closed]
I would like some suggestions for my project. I need to implement ARDUINO and FPGA, nothing too complex nothing too easy. Just something Simple! where I can show that I have knowledge of these ...
2
votes
2answers
49 views
Arduino Uno R3 hardware serial: peripheral interfering with the USB/Serial-converter?
I like to use the hardware serial port (pin 0 RX and 1 TX) to connect a bluetooth module.
Internally these pins are also ...
3
votes
2answers
43 views
What do I need to do to use a R3 Ethernet shield with a R3 Arduino Mega 2560?
I want to use my newly bought Ethernet shield without making any hardware changes, buying anything, and (preferably but not necessary) add no extra jumper wires. However, it doesn't connect to ...
-4
votes
0answers
34 views
Need idea for Ardunio Project create electric Capacitive Screen Pen [closed]
I want to create Arduino project that can replace finger to touch iPhone screen.
I wonder how can I make some device with 1 x 1 cm. surface with electronic input to touch one iPhone screen and then ...
0
votes
1answer
53 views
Can a phone battery be used to power Arduino or Motors
I was wondering whether it would be possible to use a rechargeable battery from an ordinary cell phone to power some electronics such as a motor shield for Arduino?
Can that be done and if yes then ...
-4
votes
0answers
32 views
How to request a PHP file using GSM Module in Arduino [duplicate]
So I've figured out how to make an HTTP request with the SIM300 module attached with arduino.
I hope it'll help people working on it in future. :)
Reference : http://madeeasykits.com/faqs.asp
This is ...
1
vote
2answers
118 views
Accurately detecting metallic objects
I need to detect the presence of large metallic objects. The detector will be on the ground. The detectable object will be around 60-70cm away. The detector will ...
6
votes
2answers
203 views
How can I spin an old HDD motor?
I've stripped out an old IDE (40 Pin) HDD from 1998 for use in a POV display project (Gr. 12 Computer Engineering), and I've been trying to spin it up.
The problem is that the HDD motor is brushless ...
-6
votes
0answers
71 views
how to use GSM module with Arduino [closed]
I bought a GSM module SIM300 . I've downloaded the PDF which gives the explanation of all the AT commands. But I'm really not getting how to make my arduino to connect to a webserver to open a PHP ...
-3
votes
0answers
52 views
Sonar sensor distance measure for UAV [closed]
My sonar sensor is connected to the autopilot (APM 2.5) and autopilot is connected to my PC through RF module. I need to measure the distance by running a C code in my PC. As I am new to writing C ...
5
votes
5answers
286 views
Microcontrollers - Beginner questions
How do you determine how many sensors a microcontroller can use?
My understanding is you can't use C# directly on any microcontroller but you can use C# and communicate over the USB and look for a ...
