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 ...

learn more… | top users | synonyms

1
vote
1answer
23 views

Cannot send data from RaspberryPi to Arduino using UART

I want to send data from RaspberryPi to Arduino UNO using UART. I tried sending my data 10 times to Arduino but it received it once. It reads as follows. Connected to PC pi: ÿpi: ÿpi: ÿ 1) I ...
0
votes
2answers
53 views

How to create serial cable for Paspberry Pi with arduino micro?

I know it is possible to use arduino as usb to serial converter https://www.youtube.com/watch?v=qqSLwK1DP8Q). And I know it is possible to communicate with raspberry console from laptop over serial ...
1
vote
1answer
37 views

RPi + GPS + Arduino Shield

I have this GPS module and an arduino shield for the raspberry pi from Cooking Hacks. See link: https://www.cooking-hacks.com/gps-shield-for-raspberry-pi My raspberry pi B+ is fully updated i have a ...
0
votes
1answer
63 views

Voice recognition on arduino or raspberry pi?

I am trying to do a project with voice recognition. Which platform is better for voice recognition Arduino or Raspberry Pi? And why?
1
vote
1answer
63 views

Raspberry -> multiple arduino's cross communication

So I've recently been working on a new digital firing system for my firework show's. To do this I wanted to use a Raspberry pi as a master and some arduinos as the field boxes. The raspberry ...
0
votes
2answers
106 views

NRF24l01 Raspberry Pi and Arduino

I've been trying to make work the NRF24l01 RF module with Raspberry and Arduino, but I can't. This is the version of the module I have: NRF24l01 Module I'm trying to send the data from the Arduino, ...
0
votes
1answer
79 views

Input/output error while receiving the string from arduino via i2c

Im trying to send string data from arduino to raspberry pi via i2c. Raspberry pi can receive the data of particular length(probably32 bytes) of string since bus.read_i2c_block_data(address,0) read ...
1
vote
1answer
48 views

Raspberryi pi doesn't show i2c address

I need a level shifter circuit between 5v and 3.3v. I'm interfacing two devices raspberry pi and arduino using I2C protocol. I google about level shifter for raspberry pi and arduino. I got this ...
1
vote
0answers
19 views

Raspberry Pi - Arduino connection can receive not send

I am using a Raspberry Pi and Arduino (for 433Mhz switched). My arduino code (short): void loop() { if (Serial.available() > 0) { // read the incoming byte: incomingByte = ...
1
vote
1answer
76 views

Arduino sends different numbers over serial to Raspberry Pi than Linux/Mac

I've set up an arduino uno to monitor room temperature and communicate this to my Raspberry Pi (old model B) over USB (2.0 cable) using pySerial to read the data on the raspberry pi side. The code I ...
0
votes
0answers
53 views

Pi getting data from XinoRF

I'm trying to get the data from a DHT11 sensor connected to the XinoRF board. But it seems I get nothing from the wireless port ttyAMA0, but when I use the USB port ttyACM0, the python program seems ...
1
vote
0answers
53 views

Controlling Arduino from web?

I am making a project in which I have several servo motors and LED's connected to the Arduino Mega 2560. I want to control these from a web interface over wifi. I have a Raspberry Pi which can act as ...
0
votes
2answers
56 views

How much power can the Pi supply?

I am making a project in which I will be using an arduino to control several servo motors and LED's. And I ll be using a Rqspberry pi to control arduino. They will be connected serially. In this ...
1
vote
1answer
112 views

Can I make a bridge between GSM Arduino shield with a Raspberry Pi?

I am trying to do some work with Raspberry Pi, however, I have GSM Arduino shield laying at home. I want to give a voice-call using it. However, I still wondering how can I interface voice/mic, ...
1
vote
3answers
120 views

How can I send commands from Arduino to raspberrypi

I am making my baby-steps using raspberrypi. I am stuck in something. I am building a device that combine arduinà with raspberrypi. There are some sensors connected to arduino and others to Raspa ...
0
votes
0answers
53 views

How can I read if there's any activity on the serial port?

I have a PIR-sensor and a controller hooked up to my USB, and I can read in the Terminal the controllers output if there's any motion using serial.readline(). But what I really want to do is just to ...
0
votes
0answers
70 views

Python script always throws exception the first it is ran after reboot

I am trying to build a home automation system with Raspberry Pi connected to Arduino Uno via USB. Everything works but the Python script that I am using for reading variables from Arduino is always ...
0
votes
1answer
83 views

“…relocation truncated to fit: R_AVR_13_PCREL against symbol…” using PlatformIO on Raspbmc through ssh

I ssh into my Raspbmc installation through my iPad (I don't have a keyboard). I was looking into developing for Arduino on the Pi, as I don't have my primary PC with me right now. I installed ...
2
votes
2answers
158 views

Soil moisture sensor compatibility

Can this sensor for ardunino can be used with raspberry pi b+ model? The specs of the sensor are Operating voltage: 3.3V~5V Dual output mode,analog output more accurate A fixed bolt ...
0
votes
1answer
39 views

Gertboard programming atmega328p : can't define “board” to program

Using RPi rev B, all software updated (raspbian). I have installed the Arduino IDE software per the instructions of https://projects.drogon.net/raspberry-pi/gertboard/ . Originally the download gave ...
0
votes
1answer
57 views

Connecting accessory for Arduino with RPi B+

I would like to know if there is any possibility to connect accessory for Arduino with RPi. Exactly, I have Arduino WiFi Shield (http://arduino.cc/en/Main/ArduinoWiFiShield) and Raspberry Pi B+. I ...
2
votes
1answer
720 views

Raspberry Pi as an captive portal with CoovaChilli

i'm looking to do something maybe not that common with my Rpi; I have a rowing machine and I want to connect it to my Pi to motivate me to do sport. To do this, I have an Arduino connected to a Pi ...
0
votes
2answers
97 views

design a hardware whether to base on arduino or raspberrypi

I want to build a device which can link some sensors and actuators, on the prototyping stage, I can use either arduino or raspberrypi to implement the functionality, now my puzzle is whether to use ...
0
votes
2answers
120 views

Level shifters for serial communication to an arduino

I want to send info from a raspberry pi to an arduino and vice versa using serial communication. Do i need a level shifter to accomplish this? Or can i communicate between the two without a shifter? ...
0
votes
0answers
73 views

Delay in Communication Between Arduino and RPi

I already asked a question regarding communication between a Arduino and RPi through a USB serial connection and was able to solve major issues. Now my RPi and Arduino are talking to each other and ...
0
votes
0answers
66 views

Kernel Panic on Boot with GertDuino

When I boot my RPi with the GertDuino attached and the jumpers set to the Atmel 328 I get a kernel panic where it cant find the rootfs and drops me to a shell, "kdb >". When I place the jumpers set to ...
1
vote
2answers
472 views

Arduino to RPi serial Communication

I'm trying to get my Arduino to send my Raspberry Pi some ultrasonic information via a serial connection via the USB cable. I am close but my RPi is reading the input from the Arduino clipped ...
0
votes
0answers
304 views

Smoke detection using raspberry pi?

I was interested in making a smoke detection unit which starts taking a video and also sends an SMS once the detector detects smoke. But the problem is which smoke detector should I use ? and how do I ...
0
votes
1answer
145 views

Raspberry Pi GPIO input fluctuating

I'm trying to read the output of a photodiode sensor circuit by the Pi GPIO. The sensor circuit outputs roughly 3.3v, from an Op Amp when the sensor detects IR. Circuit Diagram: N.B Op amp is a ...
1
vote
1answer
72 views

Is it safe to connect arduino with motors to pi via USB?

I'm planning to connect raspberry pi to DAGU mini driver, just as shown here. I have a question regarding the minidriver drawing current from the Pi USB port. As far as I know if there is no battery ...
1
vote
0answers
95 views

Multiple Arduino-Raspberry Pi serial

So, the question is, is the content of /dev/serial/by-id unique? Essentially the issue is I want to connect several (two or more) arduinos (potentially of different types, but they may all end up ...
0
votes
2answers
333 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
280 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
87 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
5k 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
235 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
2k 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
244 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
79 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
90 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
241 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
104 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
1answer
78 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
5k 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
1k 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
160 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
1k 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 ...
2
votes
2answers
464 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 ...
1
vote
2answers
861 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?
1
vote
1answer
199 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: ...