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1500 questions
6
votes
1 answer
Can an Arduino emulate a USB mass storage device?
Question:
Can I connect an Arduino's USB port to the USB port of another embedded device that is expecting a USB thumb/flash device?
Or, can I connect a USB module to this embedded device, with the other end connected to GPIO's of the Arduino?
This…
SaundersB
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6
votes
1 answer
Can I use an external power supply and still communicate with my computer over Serial?
I read the following online:
If you plug in both USB power (say from a pc) and external power via the 2.1mm jack, the Arduino chooses power source automatically.
If the external 2.1mm DC is providing greater than 6.6V, the Arduino will take power…
c_breeez
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6
votes
2 answers
Bluetooth HID module
I try to build custom controller and now searching for bluetooth hid module. Which BT HID module compatible with arduino? (not bluetooth serial)
List of some modules:
BlueSMiRF HID - from sparkfun, expensive (based on rn-42, also available RN-42-EK…
Sonique
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6
votes
2 answers
Logging multiple gigabytes of data with Arduino
I have Arduino Uno with SD card shield. I'm planning to log a huge amount of data from various sensors - including accelerometers and 3D compass - to the SD card.
However, I have understood that Arduino, 64GB SD, FAT and large amount of data are…
Olli
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6
votes
3 answers
I bought USB > FT232RL, can I use it to program a bootloader onto an Arduino?
I bought this thing off of eBay:
eBay Link
Will it allow me to program an ATmega[xxx] (Arduino clone) with a bootloader?
--> If so, how would I go about it? What should I do, and what should I certainly not do?
--> If not, what do I need (or…
KJdev
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6
votes
1 answer
Can a stepper motor be controlled directly from an Arduino?
I'm planning to build a simple XY plotter, and have been looking at the possibility of using a pair of small 5V 4-phase steppers to provide the movement. In my research, I've often seen stepper driver boards advertised, ranging from very big and…
Peter Bloomfield
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6
votes
4 answers
What purpose does the yellow and green LEDs have on the Arduino?
I have wired up a small project with a shift register (see below), but depending on how I put the 74HC595 IC (8-bit shift register with 3-state output register), the green and yellow LEDs of the Arduino stop shining.
What are these LEDs for? Do they…
poseid
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6
votes
5 answers
How do I repurpose Arduino's reset button
Is there a way to repurpose the reset button for the code, like an on-board button? I don't need it to reset, but it would be useful to make it run through a list of RGB LED cycles.
Christopher Muhlbauer
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6
votes
2 answers
How can I adapt the DallasTemperature library to accept another 1-Wire class?
A commonly used library is the DallasTemperature library, used to access DS18B20 sensors on a 1-Wire bus. When creating a DallasTemperature object you pass a reference to a OneWire object. OneWire can create a 1-Wire bus on pretty much any port of…
Cybergibbons
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6
votes
1 answer
Why do I need to include libraries used in other libraries?
I have a simple library which uses another library.
Here is the header:
#ifndef __DERIVEDCLASS_H__
#define __DERIVEDCLASS_H__
#include
class DerivedClass
{
private:
HardwareSerial* serial;
public:
…
Cybergibbons
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6
votes
3 answers
How to reset ATmega328P fuses using USBasp programmer?
I think I bricked two ATmega328Ps when I was trying to burn new bootloaders using Arduino Pro Mini, the USBasp programmer and the Extreme Burner AVR software. I had two ATMega328p with bad booloaders and I intended burn the correct bootloader to the…
zahed
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6
votes
2 answers
7 Segment display dimming
I've got project that needed to have some (4) digits display, and had plenty of 7 seg. displays lying around. I didn't have any multiplexers left but have instead wired it up as per this diagram:
I've the wired my duemilanove with the a-dp pins on…
Shane Gadsby
- 163
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6
votes
1 answer
ATMega32u4 (Leonardo) Serial Baud Rate
Does anyone know what the actual baud rate that the CDC Based virtual serial port on the Leonardo runs at is? Serial::being() for the CDC version is just empty, so it's not setting a baud rate anywhere.
Basically, I'm debating between using the 32u4…
Adam Haile
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6
votes
1 answer
delete the memory or re-upload a program
At the moment I am following the instructions of this project https://github.com/JoernL/LimiTTer. Besides the peripheral parts like a Bluetooth module and an NFC module, the central unit is an Arduino Pro Mini.
I am a bloody novice with Arduino and…
verticoe
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6
votes
2 answers
Using SPI without driving MISO
I am developing an application where an Arduino Pro Mini communicates with a 12-bit ADC over SPI. The communication is one-way, meaning that the ADC will only send data back to the Arduino, not receive any. The MOSI pin is therefore not required in…
Fulcrum
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