Electronics Questions not on EE
   21 tags on 18 sites

0 answers

Missing arm64 packages on 15.04

I am trying to install tightvncserver and xfce or lubuntu-desktop on ubuntu 15.04 but apt-get doesn't find the packages I ran apt-get upgrade and update but still no help I'm a doing something ...

3 mins ago by Strudle on Ask Ubuntu askubuntu.com
1 answer

How to set root password on Yocto / Poky image?

I am building an image with Yocto/Poky release Daisy 1.6.3. What is the correct way or config file where to set the root password? The default password is empty and I can't find a place where to ...

1 answer

Contiki powertrace with CC2538

I am using openmote (CC2538) on Contiki. I wish to use powertrace app with this platform, but when I run the program all readings are always 0. However, when I run it with tmote sky, it works ...

1 answers | 54 mins ago by Avijit Mathur on Stack Overflow stackoverflow.com
1 answer

How to return the value to the global variable to be used?

I'm facing a problem. I need to use the random number generated in the void loop from randomseed() to be displayed on the LCD and also being stored in an array. I simply can't display the random ...

0 answers

python arduino usb communication

im currently trying to move data from python to arduino nano which i got` but i cant see nothing on console in the arduino side p.s when i tried to move data from arduino to python i worked pretty ...

2 answers

Why can't I upload this Arduino program?

Recently I have taken an introduction course for electronics and I have already learned plenty of programming. I was starting to learn about the Arduino. For some reason, whenever I try to upload a ...

0 answers

Android. I have 2 Native SO libs. If I add one of them for some platform - am I forced to add another one for that platform as well?

I need to use 2 Native SO libs in my Android app. One of them(my app engine) I have for armeabi and armeabi-v7a. And the second one(ads etc.) is present for many platforms (armeabi, armeabi-v7a, ...

0 answers

IR remote receiver not working while relay is HIGH

I'm newbie with Arduino, I have just one week of research. I brought I starter kit and done the example projects. Now I'm trying to create one on my own. But I'm having troubles: I could manage to ...

0 answers

Run Time statistics [FreeRtos]

Below is the output I receive, obviously the data is worthless. By looking at the code snippets included, do You see anything incorrect? How does the run time statistic module know how fast the clock ...

1 answer

Strategies to preserve disk space in high input frequency application

I have a requirement to support shrinking of a database which has a data entry rate of 1 entry (approx. 300KB) per second. The database file can reach 3GB. The current database has no auto vacuum ...

1 answer

how to load and boot yocto image on the arm hardware?

I have generated a custom Linux image by yocto hob, and the output in the /tmp/deploy/images/qumearm folder like below: xxx.rootfs.ext4 size:51MB xxx.rootfs.tar.bz2 size:13.2MB ...

1 answers | 1 hour ago by dikoufu on Stack Overflow stackoverflow.com
1 answer

GNU make is adding white space after -I (shared directory) option

I'm trying to use armclang compiler through a GNU makefile, but there is a clash between both tools when using -I option. For armclang compiler, the -I means "Adds the specified directory to the list ...

1 answers | 2 hours ago by Ilyes on Stack Overflow stackoverflow.com
4 answers

How to unpair or delete paired bluetooth device programmatically on android?

The project is to use my android phone to connect with my arduino devices. but how can I unpair the paired ones. I see it seems the paired list is stored where bluetoothadapter could retrieve anytime. ...

1 answer

ds-5 ultimate evaluation version supports 64bit neon ( arm_v8 neon)

I have installed the current "DS-5 Ultimate 64-bit evaluation " version but am not able to build for ARMv8 64-bit neon. In armclang am not able to find the cpu list it shows only option ...

1 answers | 2 hours ago by ranjithkumards on Stack Overflow stackoverflow.com
0 answers

Programming on different ARM architectures

I'm trying to be sure I understand some basics about programming for different ARM architectures (e.g. ARMv5 vs ARMv7). I have a python program that was ported to the newer Raspberry Pi ...

2 answers

Temperature sensor and web server flooding

I cannot find a good answer to my situation. I have some temperature sensors (Arduinos) sending data to my webserver with a GET HTTP request. On each request, temperature is stored in database with ...

2 answers

Arduino interrupt alternatives

From what I've read, the solution to my problem is to use an interrupt, but if I understand them correctly, I can't use a delay in the routine that gets called by the interrupt. I've got a large ...

2 answers

Global variables modified by main() and accessed by ISR()

Here is my c code char global_variable = 0; ISR(){ PORTA = global_variable; toggle_led;//to make sure that the interrupt is triggered } int main(){ while(1){ _delay_ms(500); ...

3 answers

It is possible to get linker script symbols addresses as constant values in C code?

I want to get the address of the end of my program and check at compilation/linker time if I have enough space, after the code, to place some random data in execution time. But as the symbols ...

1 answer

Error installing gdb-arm-linux-gnueabi

I get an error when I try to install the gdb-arm-linux-gnueabi package. This is the error that I obtain when I run apt-get install gdb-arm-linux-gnueabi: $ env LC_ALL=C sudo apt-get install ...

1 answers | 4 hours ago by David Martínez on Unix & Linux unix.stackexchange.com
0 answers

Spring _embedded is not rendering in JPA end points

I am new to SPring. I am running an existing Spring application. Previously JPA requests were giving _embedded in the result json. Suddenly the _embedded is not coming in the json. WHy is it so? Is it ...

1 answer

Android USB Accessory connection with Arduino and USB Host shield

I have the following components. Device: Arduino Uno R3 (Original) USB Host Shield (from sparkfun.com) ASUS Zenfone 2 (Android 5.0 Version) Software: Arduino IDE (1.6.5) USB Host Shield ...

1 answers | 5 hours ago by zxprince on Stack Overflow stackoverflow.com
0 answers

Duty Cycle adjustment Fast PWM Mode

As per the datasheet of Atmega328, Timer0 fast PWM mode can be selected by setting WGM02:00 to either 011 or 111. When we set Fast PWM mode using 111, TOV Flag set on TOP. Also TOP is equal to OCR0A. ...

0 answers

android controller device via wifi not working

i'm making an arduino car that will be controlled by an android device via wifi. but this code is not working. can someone help me create the android app compatible to this code. Thank you! #include ...

3 answers

Error While Sending byte array serialy using Serial.write

Error While Sending byte array serialy using Serial.write. byte buf[] = {125, 126, 127, 2000, 5000}; int i = Serial.write(buf, sizeof(buf)); for(int i = 0; i < (sizeof(buf) / ...

3 answers | 7 hours ago by vijay patil on Stack Overflow stackoverflow.com
2 answers

Solenoid electromagnet with arduino 3.3v

I want to connect a solenoid electromagnet with my arduino. I'm using an arduino pro mini running on 3.3v. All the solenoid electromagnets I've met are running on 12v. Have you an idea?

2 answers | 7 hours ago by Matthieu Brabant on Stack Overflow stackoverflow.com
3 answers

Can data types saved in PROGMEM be changed later on in the program?

Hello i am making a game on an Arduino but i need to store 2 global variables that keep track of the score currScor and hiScor both of type uint32_t and to save ram space i marked them as uint32_t ...

3 answers | 7 hours ago by blu on Stack Overflow stackoverflow.com
1 answer

Why uboot need to load at specific address in beagleoboard?

In beagle board bring up we use this specific address below to load up uImage and dtb? loaduImage=fatload mmc 0:1 0x80007fc0 uImage loadfdt=fatload mmc 0:1 ${dtaddr} omap3-beagle-xm.dtb Why can't ...

3 answers

LCD library - MPLAB X

I'm trying to understand this LCD example on Pic16F887; http://www.mikroe.com/chapters/view/17/chapter-4-examples/#c4v12 but the compiler keeps showing me errors: lcdpic16.c:32: warning: function ...

3 answers | 7 hours ago by user1428734 on Stack Overflow stackoverflow.com
0 answers

Raspberry Pi 2 : DHT11 : Oracle Java ME Embedded

Anyone integrated DHT11 temperature sensor on Raspberry Pi2 with Oracle Java ME Embedded system? Any direction will be helpful.

15 30 50 per page
1 2 3