Tagged Questions

The Arduino is a single-board microcontroller, designed to make the use of electronics on technology projects easier. The Arduino is visually similar to the Raspberry Pi, but it is focussed more on using electronics in programming, than just programming like the Raspberry Pi is (although GPIO may be ...

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0
votes
0answers
31 views

Image transfer from a Raspberry Pi to an Arduino [closed]

I'm trying to transfer a image from my raspberry pi to my arduino. The image is caught on the pi periodically and then sent to the arduino which is acting as a web server. I'm also using sensors on ...
0
votes
2answers
35 views

Use interrupts in i2C between Ardiono and Raspberry Pi

I'm really new to Raspberry Pi and Arduino programming (+ I2C). Recently I start working on a project where I have to connect an Arduino and a Raspberry Pi to send and receive data from each other. ...
0
votes
1answer
43 views

Sending i2c commands from arduino to pi

The RPi and arduino are connected by I2C and the arduino sends coordinates to the RPi through the wire library. However, the RPi only receives and prints out 0 when it should print out the coordinate. ...
0
votes
1answer
28 views

Raspberry Pi + Gertduino

I realize this might not be a typical RPi question. However, I have a RPi with a Gertduino plugged into the GPIO headers. I can use the wrapper program_328 for avrdude to upload a precompiled ...
2
votes
1answer
270 views

Major trouble with nRF24L01+ controllers and the RF24 library

I've had a hellish last three days. All I've wanted to do is get an Arduino Uno and a Raspberry Pi B+ talking to eachother with these little guys, and after following many different tutorials, I've ...
0
votes
2answers
45 views

Data transfer from arduino to raspberry pi wirelessly?

How do I send data to raspberry pi connected over wifi from arduino connected to a laptop which is in turn connected to the same wifi network as raspberry pi?
1
vote
1answer
99 views

Python serial permission issue

I'm trying to connect my Arduino to my RPi through python and PySerial, and I'm using the following code: import serial ser = serial.Serial('/dev/serial/ttyACM0', 9600) and I was getting an issue ...
0
votes
3answers
70 views

Is it possible to power a raspberry pi using android phone in USB host Mode?

the android phone can be used in USB host mode to power an arduino, pen drive,mouse. Is it possible to use the android phone to power a raspberry pi?
1
vote
1answer
51 views

Permanent serial connection to Raspi

I can connect an arduino by serial to my laptop no problem using Processing. Is a Raspberry Pi likely to be able to maintain a permanent USB serial connection to the arduino, or am I likely to ...
1
vote
0answers
55 views

Pi vs Arduino for running a weather display [closed]

I just moved in to my new home of Purdue and am wondering whether I should be using a Raspberry Pi or Arduino for my first project here. I want to mount some LCD panels to the back of my dorm door ...
1
vote
0answers
66 views

Raspberry pi and Arduino mini 05 connection

First of, I consider myself a real newbie when it comes to electronics and have my base knowledge in high level programing. So please have that in consideration in your answers. I have a raspberry pi ...
0
votes
0answers
49 views

Using Arduino .h files when programming in python

I have a working Arduino script that I'd like to clone in Python in Raspberry Pi. The script uses the: #include "U8glib.h" library. I'd like to write a python script that uses this c++ library. ...
0
votes
0answers
39 views

Arduino-Raspbery Pi bridges

I am building a small wireless controlled robot using the Arduino and the raspberry pi. It works by the user wirelessly connecting through to the raspberry Pi (using vnc or some other form wirelessly) ...
5
votes
5answers
2k views

Why do people use powered usb hubs?

I have the RPi B+. It has four usb ports. At the moment I am powering an Arduino Mega, a small RFID reader and a keyboard. I plan to also power a wifi dongle and an arduino uno. Will this just work? ...
2
votes
1answer
159 views

Home Automation and Dimming

This is a sort of continuation of a previous question I asked. I want to switch lights on and off, amongst other things with several raspberry pi's in my house. I've got this functioning and working ...
0
votes
0answers
73 views

controlling non addressable Led-strips using the SPI

For a project,I need to control RGB lightstrips by DMX and I want to use only 3(RGB) DMX channels.It seems logical to use non addressable lightstrips,for that seems to be the cheapest method (I need ...
0
votes
1answer
310 views

Raspberry Pi and Arduino bluetooth communication

I'm currently workin on a project which consists of controlling a arduino robot ( with this https://www.adafruit.com/products/1588 bluetooth module on it ) from my raspberry pi. I found this ...
1
vote
1answer
185 views

RaspberryPi to Arduino(leonardo) avoiding latency

I'm using a Python script via (TKinter)on the raspberryPi to capture mouse movement and events. My goal is to send this data, in real time, to another connected Arduino device(Leonardo). My first ...
0
votes
2answers
149 views

WiringPi vs default Raspbian RPi.GPIO module

Can anyone explain the difference between WiringPi and the default RPi.GPIO module that comes with raspbian? What extra features does WiringPi have?
0
votes
1answer
90 views

Need to initialize serial connection with screen

My Problem: I've got an Arduino connected to my Pi via /dev/ttyUSB0 and I always have to initialize the connection via screen, otherwise I cannot send any values via Bash or Python. What I'm doing: ...
0
votes
1answer
895 views

Can I control this ESC/Brushless Motor with a Raspberry Pi and/or Arduino

My friend and I have been reading up on articles talking about controlling ESC/Brushless Motors from a Arduino or Raspberry Pi. Articles i've read give caution on the idea that controlling such ...
-1
votes
1answer
106 views

Whats the most ideal way of communication between an Arduino and a Raspberry Pi?

I am kinda new to a raspberry Pi (just brought mine before writing this post) but i am looking to see what is the most ideal way for two way communication between an Arduino and a Raspberry Pi (USB, ...
0
votes
2answers
224 views

Can I use any GPRS Arduino shield with a Raspberry Pi?

I would like to send data over the Mobile network using a Raspberry Pi. Can I buy any GPRS shield made for Arduino like this one http://www.seeedstudio.com/wiki/GPRS_Shield_V2.0 and connect it wire by ...
0
votes
3answers
165 views

Raspberry Pi to Arduino protocol

So I'm looking to use a few (2 for now, more later) Arduinos in combo with a single Raspberry Pi master. This is basically the setup I want: What sort of protocol would be best for this type of ...
0
votes
2answers
889 views

Reading data from external device

I need some help with data reading. In my situation, I have an Arduino Uno connected via USB to the RPi. The Arduino is sending data to the RPi with Serial.write(). The Arduino outputs 128 bytes each ...
2
votes
1answer
95 views

Raspberry to power on Arduino

Ok this may seems a little bit strange question. For my personal educational purpose only I've built the following: there are 2 sensors (one digital, the other analogic) connected to an Arduino Uno ...
1
vote
3answers
152 views

Transferring data from Arduino to RPi, Missing data

I had hooked up the Arduino Uno to the RPi through USB connection. The Arduino contains a light sensor and it will transfer data to the RPi. The baud rate used was 115200. This baud rate was used due ...
0
votes
2answers
302 views

Raspberry Pi and Arduino Storing Data

I need some help on my project. I had interfaced the Raspberry Pi and Arduino Uno through USB. I used the Arduino as a slave to obtain data from sensors. The data is then transferred to the Raspberry ...
1
vote
2answers
152 views

How can I communicate Raspberry Pi and Arduino (in both ways) using a 10-15m distance wires?

I am starting a personal project of home automation and I have a raspberry pi and an arduino Uno board. I want communicate raspberry pi and my arduino where my raspberry should be able to write and ...
0
votes
1answer
245 views

How to send multiple sensor data from arduino to the raspberry pi, and from there to google docs

I want to build a arduino- based weather station, now I want to know how I can send sensor data from the arduino uno to the raspberry pi and from there to a spreadsheet in gdocs. My problem is, that I ...
0
votes
0answers
72 views

is there a library for raspberry pi to use with MMA8452 I2C Three Axis Accelerometer Module?

I bought this accelerometer : http://www.fasttech.com/products/0/10000007/1012002-mma8452-i2c-three-axis-accelerometer-module I would like to use it with raspberry pi, I know that it is possible ...
0
votes
1answer
205 views

Use Arduino library on raspberry

I am not sure whether this is a stupid question or not, but you may be able to help. I bought a sensor board and the manufacturer provides an Arduino-library to use the sensor. Is there a way for me ...
-1
votes
1answer
216 views

LED board connected to raspberry pi

I've been searching for a little while for an LED light board for a while now that is easily compatible with the raspberry pi that I could use an arduino to my raspberry pi and then use my raspberry ...
2
votes
4answers
820 views

How to have wifi connected raspberry pi control an arduino?

I have an arduino uno that needs to respond to an iOS application with the internet being the medium. My initial plan was to use a wifi shield for the arduino, but since I can't get one at this time, ...
1
vote
1answer
1k views

Connection Pi -> Arduino through nRF24l01, problem with integers

I want to send integers via RF-module nRF24l01 from my Pi (library: https://github.com/jpbarraca/pynrf24) to my Arduino Pro Mini (library: http://maniacbug.github.io/RF24/index.html). I am able to ...
1
vote
0answers
390 views

Node.js and johnny-five issue

Not sure if this is the right place to ask this but here goes. So I am working on a project where i control a rc car from my web browser. I am using the raspberry pi (Rev B) as the webserver and ...
2
votes
1answer
122 views

Built-in http server or framework

I will use a Raspberry PI as a server to run python scripts from an ethernet connected Arduino (to encode short ip camera videos, send notifications through the internet and sync files to dropbox, for ...
0
votes
0answers
29 views

Problems using usb connection between arduino and raspberry pi [duplicate]

I have an arduino connected over usb with a raspberry. A python program ist sending a value over usb, the arduino receives it and turns the led on. The arduino is sending a analogue value from A0 to ...
0
votes
0answers
58 views

SSH Connection Resets when Arduino is connected to Serial Port

I am accessing Pi through SSH. I flashed firmata on my arduino and connected the Arduino's serial port pair to Raspberry Pi's pair properly.The moment I power the arduino through the 3.3V and Gnd GPIO ...
0
votes
0answers
311 views

Serial communication (USB) between arduino und raspberry Pi

i try to communicate between an arduino board an a raspberry pi. I can send the analogue values from the arduino to the raspberry using python. Now i have tried to send a value from raspberry to ...
1
vote
1answer
108 views

How to connect mhz transmitter arduino

How am i supposed to connect a transmitter to my raspberry pi "pins"? I have bought a transmitter online But i have to wait about 10-15 days before its delivered, so i want to make sure that thats ...
1
vote
1answer
244 views

SPI (file based) from Rasp Pi to Arduino

I am trying to use file-based SPI communication from my Raspberry Pi to an Arduino (328p based). The weird thing is that when I write it out one byte at a time and flush the buffer between each write ...
1
vote
2answers
643 views

Data loss (and/or corrupted) over serial USB connection to arduino

I'm trying to connect an Arduino to my RaspberryPi using USB serial cable. The goal is to be able to control a robotic arm using Firmata. I'm using node.js Johnny-Five module which allows me to ...
1
vote
2answers
450 views

What is the cheapest and long distance (20-30 m) way for communicating Raspberry Pi and attiny (or any other microcontroller)?

I need to make Raspberry Pi as my master and communicate with several slave devices (5-6 Attiny2313 in my case) that are kept 20-30 m (65-100 ft) away. Following are the requirements: cheap ...
0
votes
0answers
221 views

Raspberry Pi connected to iPad with Wifi - Internet Problem

So I have an interesting problem - one that I didn't anticipate when I started my project. Here's the idea: I want to use an iPad in my car to connect to a local network broadcast by the raspberry ...
2
votes
2answers
136 views

Will I be able to use the Pi to detect counterfeit money using UV and IR sensors?

I'd like to build a machine for counting bills and during the counting process, I want to check whether the paper money is counterfeit or not. Is the Raspberry Pi capable of doing this or would I be ...
3
votes
3answers
13k views

Safest way to connect Raspberry Pi to Arduino Uno R3

I am working on a robot using an Arduino Uno R3 and I wanted to have the ability of controlling the Arduino wirelessly, like stopping the Arduino without having to pull the power-plug every time. I ...
2
votes
1answer
846 views

Is it possible to connect multiple Arduino uno boards to Raspberry pi?

Need to connect Multiple Arduino Uno boards to Raspberry Pi for operating Appliances. After little bit of tweaking, I found some blogs for connecting single Arduino Uno board to Raspberry Pi. Is it ...
0
votes
2answers
313 views

Will I need to do soldering to be able to work with components using the arduino? [closed]

I'm planning to buy the arduino, and I was wondering if one, will I need a keyboard to power this and for my second question- which relates to the Pi as well- will I need a soldering iron to be able ...
2
votes
1answer
128 views

Can output pin withstand any reverse voltage/current?

In my application I need to drive a stepper motor and depending on the speed of stepper motor the device that generates the drive signal is selectable. Out1 is from rpi for very low speeds and Out2 is ...