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Questions tagged [raspberrypi]

For questions about integrating the Arduino microcontroller with the single-board computer Raspberry Pi. Questions just about Raspberry Pi are off-topic but can be asked on Raspberry Pi Stack Exchange.

26 questions with no upvoted or accepted answers
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3 votes
0 answers
486 views

nRF24L01+ problem with receiving response

I'm sending currently data from a Raspberry to an Arduino, but I have a problem with receiving response from the Arduino back to the Raspberry: Sent the message: ['H', 'i', '.', '.', 'A', 'r', 'd', '...
NezumiRyu's user avatar
3 votes
0 answers
390 views

Software flashing attiny167 from RPi with avrdude

I am trying to flash a program onto an attiny167 (already bootloaded with the micronucleus bootloader) with a Raspberry Pi via avrdude and USB. Background I have 50 Raspberry Pi 3B's connected to an ...
AidenRay's user avatar
3 votes
0 answers
147 views

How can I send a number from a master and make the slave read it?

I am building a fan controller using an Arduino and a Raspberry Pi (the Pi is the master and the Arduino is the slave). The Raspberry Pi generates random numbers and I want the slave (Arduino) to be ...
THN's user avatar
  • 31
2 votes
0 answers
2k views

Arduino Modbus slave error

I am trying to use Arduino as Modbus- RTU slave and Raspberry Pi as a Modbus master I have interfaced Max485 (RS485 to TTL converter) with Arduino and Rs485 to USB converter in Raspberry Pi, Initially,...
Sharath Mohan's user avatar
2 votes
0 answers
572 views

Connect Arduino + WiFi Shield to Raspberry Pi

I want to send collected data (temperature sensor) from my Arduino via the WiFi shield to my Raspberry Pi. Can I do that with the WiFi library that exists in Arduino IDE ?
Teo Protoulis's user avatar
2 votes
0 answers
61 views

Serial Write fails to send when Motors moving

I have an unusual bug with the code I have written for my rover V2 robot. I have a raspberry pi running some computer vision code written in opencv tracking an object doing the heavy processing. ...
ohkneel's user avatar
  • 21
2 votes
0 answers
429 views

Receiving multiple bytes from an RPi using the i2c protocol

Trying to send bytes from an RPi as a master to an Arduino as a slave. The send uses the write_byte(addr, value) function and seems to be working perfectly. The Arduino however has issues with ...
Ali Harvie's user avatar
1 vote
0 answers
264 views

Adding new programmer to Arduino IDE

I want to use the Arduino IDE using a raspberry pi with raspbian OS because it's the only way I can read a Digispark usb (I don't have 2.0 usb ports in my laptop so I can't read the usb with it). I ...
iam_agf's user avatar
  • 111
1 vote
0 answers
115 views

Is there a way to convert between arduino and raspberry pi pins

I have a robot that I have brought that is designed for raspberry pi (it comes with a raspberry pi HAT), and I am terrible at using my raspberry pi. So I was thinking what if there is some sort of way ...
DigitalRookie4's user avatar
1 vote
0 answers
64 views

Raspberry Pi with multiple arduinos using spi

I want to use Raspberry Pi as an aggregator & distributor of messages originating from or destined for a flight simulation program. I'd like to use arduinos connected via spi as specific hardware ...
Patrick Callahan's user avatar
1 vote
0 answers
58 views

Fresh install getting Assembler Error

I am using Raspberry Pi 4 to connect via usb to program ardino Nano, I intend to communicate with the nano via i2c, but this is irrelivant. With a fresh install of Arduino for ARM 32 bit I get this ...
Arcanist's user avatar
1 vote
0 answers
71 views

Arduino Create and Raspi I2C

I'm trying to communicate via I2C on the Raspi, programming it with the Arduino Create Web Editor. I have enabled I2C on the pi, made sure /dev/i2c-1 exists. The pi can see the device (just a simple ...
Kcoolz's user avatar
  • 11
1 vote
0 answers
61 views

Slave unreliably sends bit 7

I'm trying to send a byte from an Arduino Nano I2C slave to a Raspberry Pi 3B Master by directly connecting the two I2C pins of each device with no external pull-ups or level converters. It mostly ...
user1318499's user avatar
1 vote
0 answers
229 views

Project concerning wireless communication between Raspberry Pi and Arduino Uno using NRF24L01

We are trying to send a message using NRF24L01, with a Raspberry Pi as transmitter and an Arduino Uno as receiver. Our concern is that the receiver Arduino might not be working because we are not ...
Rangit Ray's user avatar
1 vote
0 answers
491 views

Image from Arduino with camera ov7670 to Raspberry pi

i am stuck at sending picture to Raspberry pi from Arduino , how can i do this ? One way that i am using now is saving the picture on SD card module on the arduino , how to transfer that image to ...
Ivanh23's user avatar
  • 29
1 vote
0 answers
214 views

Unable to upload to Arduino Uno From Raspberry Pi

I am trying to upload code to my Arduino Uno from my Raspberry Pi 3B+ and have been following this guide. After following the instructions and trying to upload, I received this error message. pi@...
Jeremy Fox's user avatar
1 vote
0 answers
120 views

NaN for reading from AM2302 from Arduino Uno

I want to read sensor values from 4x AM2302 to an Arduino UNO, and then pass those values for data logging to Raspberry Pi via Serial communication over USB cable. The sensors are installed at 4x ...
Taylor Hickem's user avatar
1 vote
0 answers
267 views

Arduino Sensor Values to Raspberry Pi using NRF24

Im trying to send temperature sensor data through NRF24L01 to Raspberry Pi and read it in Raspberry Pi using python. But the temperature sensor data comes to the Raspberry Pi as letters, which I found ...
Naimul Hasan's user avatar
1 vote
0 answers
59 views

Arduino reading string sent from Rpi multiple times

1.Reading strings sent from Arduino on RPI Below you can see that I am communicating between a rpi and arduino serially. I am sending "start", then move_played to the rpi. The readline() reads until ...
roaibrain's user avatar
  • 211
1 vote
0 answers
104 views

Arduno as bridge between two i2c masters

so I am gonna just jump right into the topic. Recently, I have been trying to build a project where I need to connect an ev3 to a raspberry pi. I have decided doing it by i2c after reading (and ...
Fr1nge's user avatar
  • 31
1 vote
0 answers
82 views

Compiling SRAM intensive code from Raspberry Pi 3

I am using an Arduino Uno R3 to control my Christmas lights (a strand of 665 WS2812B LEDs). I am using the Pololu library that can be found here: https://github.com/pololu/pololu-led-strip-arduino ...
Alphy13's user avatar
  • 147
1 vote
0 answers
776 views

Sending and receiving data using 433 Mhz from Arduino to Arduino

Following this tutorial: https://tutorials-raspberrypi.com/let-raspberry-pis-communicate-with-each-other-per-433mhz-wireless-signals/ I was able to easily send code from one Raspberry Pi Zero to ...
Aloysia de Argenteuil's user avatar
1 vote
0 answers
52 views

Why am i getting "phantom" readings from a flowmeter?

I have 2 flowmeters hooked up to my arduino uno. They're set to read beer volume as beer flows through them. Everything is working great, except i'm getting phantom readings. I have the arduino ...
Charles's user avatar
  • 41
0 votes
1 answer
68 views

Is it possible to preform VIO from two cameras/IMUs on a dual-core ESP32?

Like the title says, I want to take in the synchronised data from two NXP breakout boards and two Ueye 1220LE cameras, and use VIO to fuse their data and get positions for both setups. A lot of people ...
TryingMyBest's user avatar
-1 votes
1 answer
137 views

FS100A works when Arduino connected to PC but not when connected to Raspberry Pi

I am building a simple circuit which monitors soil humidity in a flower pot. I was able to measure it and send it from one Arduino Nano to another Nano via FS100A transmitter and receiver and ...
walak's user avatar
  • 1
-1 votes
1 answer
1k views

Getting at the PS_ON pin on a RAMPS1.4 mounted to a Mega

Got it! Check end of post for solution. I'm running a Mega 2560 with a RAMPS 1.4 Shield which is usually used for 3D printing applications. For my use case I only want to get at the stepper motor ...
Supra's user avatar
  • 1