Questions tagged [arduino-due]
Arduino DUE is an microcontroller card based on the Atmel SAM3X8E ARM Cortex-M3 CPU. This is a 32bit ARM core MCU.
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SAM3X8E (Arduino Due) Pin IO registers
How do the IO registers of Arduino Due work?
On Arduino Uno just set DDRx, then PINx to read, PORTx to write, I'd like to do the same thing with an Arduino Due, but it has many more registers, such as ...
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Newbie Using Brown Out detector on Arduino Due for saving variables to eeprom?
Hi I'm a newbie and working on a project with Arduino Due(Atmel3X8E).I want to try and save the important variables to the eeprom during a power outage,using the brown out detector.Is it possible to ...
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Memory allocation on Arduino Due never returns NULL
I'm working on a project that uses quite a bit of RAM to store and analyze data that is sent from the PC. The program heavily relies on malloc/free, which normally works just fine. However, if the ...
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Simple compiler design help: Variable length arrays in Arduino?
I'm trying to write a simple compiler in the Arduino language that I am making up for my lab. The compiler will have to be able to turn a string like this:
"do command_one 3 times"
into a data ...
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Only getting error from ESP8266 AT commands
I am trying to get the ESP8266 work with Arduino AT commands. I am using the due. How do I get the ESP8266 to respond with anything other than ERROR?
Here is the current serial output:
AT
ERROR
...
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How to configure 2nd Quadrature Decoder IO pins in Arduino IDE
I am working to read two quadrature encoders using a single Arduino DUE, as part of my summer vacations project. According to the following link
http://atmel.force.com/support/servlet/fileField?id=...
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Arduino Time Clock Accuracy
I'm currently trying to create an Arduino time clock by using the PJRC Time library (http://www.pjrc.com/teensy/td_libs_Time.html). I know that since most of the Arduino boards are running with a ...
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How can a 5v Uno talk to a 3.3v Due?
I currently have an Uno (which operates at 5v), and I'm looking at buying a Due (which only operates at 3.3v). I'd like to make them communicate via Serial or SPI or similar, but presumably connecting ...
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delay(time); vs if(millis()-previous>time); and drift
Going through an old project, I had code on two Arduino Due that looked like this
void loop()
{
foo();
delay(time);
}
taking to heart the majority of literature on using delay(); I recoded this ...
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How to connect 5V sensors to 3.3V digital input (Due)?
I'm completely new with Arduino and microcontrollers in general.
I have several 5V sensors, and need 3.3V because that's the max for the Due. Is it possible to use a resistor to connect it to the ...
- 1,503
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How do I read from /dev/ttyACM0 in Linux without a terminal emulator?
I just bought an Arduino Due and I'm having trouble reading from a simple serial IO program.
I have a SparkFun RedBoard which is like an Uno. With that, I just ran a "stty" command to configure the ...
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Arduino Due and BNO055 address in i2c mode
I have a project where I need to have several IMUs, the BNO055 shuttle board (I explained my project here), I manage to get the Euler angles from one BNO055 sensor, which have the address 0x29, ...
- 61
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Library to set internal analog gain of the Arduino?
My original question was if there is a library that covers the internal comparator and differential and gain modes for the Arduino Uno, Mega 2560, Leonardo, Due, Zero, M0.
The answer is obvious: "No". ...
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Arduino Control over the internet
I am really interested in IoT (enthusiastic noob) and I would like to use the arduino board. Here are the steps according to me, with my queries:
User goes to example.com/arduino_switch
Interacts ...
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0
answers
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On initialising PWM with registers on my Due, why does unrelated duty cycle input influence my output?
I am finding that setting duty cycle on PWM channels 4 or 5 has an influence on whether channel 6 generates output. The following is a design of experiments view of my tests and results, where the ...
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How to choose SDA/SCL pair on Arduino Due?
On Arduino Due, there are two pairs of SDA/SCL pins that I can use for I2C. There is SDA0 and SCL0 at, respectively, pins 20 and 21 and another near AREF. How do I choose which one of them I use? I ...
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Interference in readings
I have an project which control a heat exchanger.
I read 4 temperature sensors DS18B20, a distance with HC-SR04 Ultrasonic Sensor, and a flow with YF-S201 (with attach interrupt). I can turn on and ...
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2
answers
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Python - Arduino communication not reliable
I'm trying to establish basic communication between python and my arduino due. I have managed to get a message sent to the arduino and sent back, but the code that achieves this task does not give ...
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Manual Arduino Due Installation
Not sure if this is the right place to post this.
I have an Arduino Due I'd like to start using. I've been using Unos, Megas etc no problem. The newer IDEs have removed the Due support. I've been ...
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Arduino Serial.write sending more than 64 bytes
I am using an Arduino Due to collect a large amount of data from an encoder (about 1kb). Afterwards I need to send the collected data to a C# application I wrote over the serial port. I serialized my ...
user11933
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1
answer
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pushing accelerometer data in packets from an arduino due to the pc and unto processing
I'm quite a newbie to this and I've been struggling for sometime now with my school project, trying to find a way to send accelerometer data from my MMA7361 in data packets, I understand that I have ...
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Arduino Due and BNO055
For a physical activity monitoring project, I am developing a prototype based on an Arduino Due and several IMUs (BNO055 from Bosch).
I have to collect the data from the sensors simultaneously (3 for ...
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1
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Dealing with USB Unplugging?
The following code, debugs SerialUSB Native Port, plugged to a PC, and connected through a Terminal Monitor (such as Termite, with any bps, 8N1, RTS/CTS).
At start, the ports seeks for communication, ...
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The fastest way to read out a digital pin state in an Arduino Due
What is the fastest way to read a digital pin status in an Arduino Due? Is it possible to achieve speed in the Nanosecond area?
With which type of code I can achieve this?
Edit: This question is not ...
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2
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Is there a good reference for Arduino Due memory architecture and usage?
It's been harder than I expected to find a reference source or usage guide.
There's a number of sources I've looked at along the road to this question:
The Due is listed here and here as having 512KB ...
- 839
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Problems uploading sketch to Arduino Due
Windows 7 here. I just bought an Arduino Due and downloaded the Arduino IDE. I wrote a simple "blink LED" program (see below) and am trying to flash it to the Due.
When I connected the Due to my ...
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Servo Program Questions
Hi programming in arduino, I am trying to get a nested for loop inside a for loop with industrial servo which used PUL +- DIR+- (bought motor off amazon).
My goal is to get the puls delay to increase....
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Trouble with setting the PWM frequency for Arduino Due
I'm using Arduino Due and I set the analog read and write resolution to 12-bit for better resolution. Basically all I do is to vary PWM duty cycle by controlling analog DC input voltage from 0 to 3.3V....
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What does this error mean?? Arduino Due loop warning
I am getting this error on compilation of the code given further below;
warning: iteration 3u invokes undefined behavior [-Waggressive-loop-optimizations]
leds[XY (x, y)].r = redarray[x][y];
note: ...
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1
answer
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Arduino Due: ADC gain adjustment problem
I want to increase gain of the ADC channel. To achieve this I'm using adc_set_channel_input_gain function from adc.h. Here is the entire sketch:
const byte aPin = A6;
void setup() {
...
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1
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Arduino is not responding to a Tiny RTC I2C modules, How to fix?
We have an arduino due with a Tiny RTC I2C module and we're trying to print the current time to the serial monitor. However its not working, currently its printing the time as 2165/165/165 (Monday) ...
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Simultaneously reading data from multiple serial ports
I have three sensors latched on to three different Arduino devices.
The respective Arduino devices are connected on to an Arduino Mega on Serial1, Serial2 and Serial3.
The data from each device ...
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Arduino Due not properly detecting SD card
I have an SD breakout for my Due that isn't properly detecting the SD card. On one card, it cannot detect at all, and the other it says that the SD isn't formatted with FAT, even though it is. Here is ...
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Can all Arduino Due pins be used as digital input/output?
I am using an Arduino Due for a project. I am running out of digital pins, using 22 to 53. Can pins 0 to 13 and SCL1, SDA1 be used as digital inputs?
How about analog pins (A0 to A11) and DACs?
...
tendo