Questions tagged [arduino]
For questions pertaining to the Arduino microcontroller and it's integration with Raspberry Pi projects. Questions about Arduino only are off-topic and can be asked at Arduino Stack Exchange.
415
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67
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Need Help with nRF905 Transceiver Module on Raspberry Pi Zero
I recently bought a nRF905 Transceiver Module from Jaycar and am wondering how to use it. It is meant for an Arduino and I have found some libraries for it (nRF905 Library For Arduino - GitHub)
I need ...
- 13
0
votes
1
answer
25
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Is it ok to usb micro male - micro male for USB device?
I am hooking up an arduino micro to my Pi Zero W.
For space, I used a short micro male-male USB cable:
https://www.amazon.ca/CableCreation-Micro-Kindle-Android-Tablet/dp/B01M5GZ3N0
When I use this on ...
0
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0
answers
20
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COM disconnects and program fails when including code trying to initialize SD card (RP2040 Pi Pico W running Arduino)
I'm having an issue where anytime I run a program such as the SD card read write example (Below) the COM port disconnects. The only changes I have made to the example code is I am using SPI1 instead ...
-1
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1
answer
36
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Connect Raspberry Pi 4 GPIO output pins to Arduino Uno
I want my Raspberry Pi4 to give 4 unique outputs, not necessarily at the same time, which will be four different inputs to the Arduino Uno.
I want to know how to proceed as I think by connecting them ...
1
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0
answers
60
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Transmitting Serial data via Wi-Fi from Raspberry Pi to Wi-Fi Module
I previously built two separate projects for sending/receiving data between an Arduino and a Raspberry Pi 3. One transmitted via Bluetooth (HC-05 Module on the Arduino-side to the built-in BT module ...
- 31
2
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1
answer
344
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Pico Arduino DS18B20 OneWire
I am failing to read a DS18B20 with a RaspberryPi Pico programmed with Arduino.
I found several examples using MicroPython, however I want to do it with Arduino using the 'Raspberry Pi Pico/RP2040' ...
- 129
1
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1
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68
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Pin state doesn't change, but wait_for_edge triggers
I've been trying to figure out why the GPIO value will not change. I double check, triple check my connections.
I used GPIO.wait_for_edge(pin, GPIO.RISING) and it executed and when I ran print(GPIO....
0
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1
answer
534
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Connecting MCP2515 with raspi
I am trying to connect mcp2515 can bus module with raspi 4b.
On using pi@piv2:~ $ sudo ip link set can0 up type can bitrate 125000 the terminal freezes so i downgraded my terminal to 5.4.61-v7l ,t ...
0
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3
answers
140
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How to connect Arduino to Raspberry through USB-TTL (called like this in electronics shops)?
I want to connect an Arduino to Raspberry Pi through a USB-TTL converter like this one:
My doubt would be about logic voltage. I know that Arduino works with 5V logic, while Raspberry Pi does with 3....
- 9
1
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0
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171
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Cannot locate the raspeberry pi pico on my computer (`UF2_Board ` instead of `/dev/cu.usbserial-0001`)
I want to connect to upload code on my raspberry-pi-pico but my computer does not recognize it. When using the arduino cli it seems to be recognized under the UF2_Board instead of the classical /dev/...
- 111
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2
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137
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Problems with I2C communication
Hi I am attempting to test I2C comms between an pi model 4B and teensy 4.1 (running code uploaded from the arduino IDE via usb). While I can read from the slave with a python script if the arduino ...
0
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1
answer
46
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Backpowering from Arduino on USB
I have connected an Arduino MEGA2560 with the Raspberry Pi B+ V1.2 via USB
The idea is to use the Raspberry Pi as gateway to remote flash the Arduino.
So I switch on the Arduino and the Arduino ...
- 1
2
votes
0
answers
256
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LoRa Communication: Sending and Receiving Data with Raspberry Pi Receiver from Arduino Transceiver (RYLR896)
I'm using two RYLR896 Modules to setup a LoRa network. I'm using an Arduino Nano as my Transceiver and a Raspberry Pi 3B+ as my Receiver. While this verbage is currently accurate, this is intended to ...
- 31
0
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0
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71
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How to mimic RC signals using raspberry pi?
I am working on an automated Quadcopter and I am trying to build a flight controller using Arduino board and raspberry pi.
I don't want to use a transmitter and receiver in this project instead wants ...
0
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2
answers
146
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Raspberry Pi and bscXfer/bsc_xfer not reliably passing data between Arduino Master
Data passed between a Raspberry Pi, configured as an I2C slave device, is not reliably transmitting between an Arduino I2C bus master device. Data is consistently getting lost, and slave responses are ...
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-1
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1
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334
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Using Run Pin for Startup on pi zero w and v2
I'm planning on running a pi zero 2 connected to an arduino over uart for a personal project, but I'm using a pcb and I want to power it on and off without using any cables.
My current plan is to ...
0
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0
answers
96
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RPi Pico + Arduino IDE: Compiler generates FPU instructions for a device without an FPU
I've bought a SSD1306-compatible display for my Raspberry Pi Pico. However, it uses some kind of non-standard encoding and the typical Adafruit libraries don't work. The seller says I should use the ...
- 101
1
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1
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310
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How to decode struct data sent from an Arduino via NRF24L01?
So basically I'm sending this struct data from my Arduino to my RPi, both fitted with an NRF24L01 module. Library on the Arduino is tmrh20, and on the RPi, BLavery.
struct values{
char ...
0
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0
answers
131
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I2C sending data from arduino to python gives gibberish data
It's my first time working with SMBUS and I've read the docs of arduino and the Wire object. It states that I can send a string. To quote the docs: string: a string to send as a series of bytes. https:...
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0
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192
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Arduino-Pico RF433 Rf-Tx cheap modules
I currently use Arduino IDE to program Raspberry Pico, using this as reference.
Arduino-pico Github
My intention, is to use RadioHead library which is not available in MicroPython, to send and receive ...
- 141
0
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1
answer
281
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How to connect Raspberry PI 3 B to two Bluetooth modules or more using Linux Commands
I'm working on a project; that needs to send data from the two Arduinos using two Bluetooth Module (One using HC-06 and the other using HC-05) to Raspberry PI 3 B; so that the RPi 3 need to connect to ...
0
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2
answers
255
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Can a program be stored in flash memory on raspberry pi and run without a monitor and internet connection like on an Arduino?
Sorry if this is a stupid question, but I'm new to Pi and Arduino, and couldn't really find an answer through Googling. I'm designing a project that needs some sort of "brain" which will use ...
- 103
1
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1
answer
677
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rPi Pico IRQ with callback freezes Pico
I am trying to configure rp2040 function gpio_set_irq_enabled_with_callback on Pico using Arduino IDE with installed Arduino mbed OS because i need some libraries.
When called interrupt happens but ...
- 21
0
votes
3
answers
2k
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Python script stops mysteriously after a few hours
The Problem
I have a raspberry pi 3b+ running a python 3.7 script that is controlling an arduino. The arduino is reading values in from a few different sensors, and sending the data back to the python ...
- 103
1
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4
answers
606
views
Rpi3B+ ssh session drops randomly
I have a Raspberry Pi 3 Model B Plus Rev 1.3 in my Ethernet network that runs headless with octoprint and an arduino pro mini connected to it via i2c. Wifi is disabled. The Rpi is powered from an ...
- 41
-1
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1
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362
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Rx, Tx/UART not being detected by Pi? What is wrong?
I'm working on Serial communication between the Raspberry Pi and the Arduino, with the Raspberry Pi serving as master. I connected, using a logic level shifter, Arduino's Rx (Software Serial was used ...
- 89
0
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1
answer
889
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Minicom not working
I am trying to connect my Pi 4 running Rasbian 2020 to an Arduino, after making all the connections I try to communicate with the Arduino by using Minicom. However, Minicom doe not respond to anything ...
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1
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111
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PiCan 2 Data Logging on higher frequency problem
I have a project that logs data from a vechicle's OBD 2 port (using PiCan2 on top of RPi3B) and combines that data with data from sensors connected to an external Arduino. The Arduino communicates ...
0
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1
answer
189
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Using I2C with MMC34160PJ magnetometer
I'm trying to read data from the MMC34160PJ magnetometer using the Raspberry Pi 4. However, I'm pretty stuck as to how I can do it as there's seemingly no example code or library for it. I have been ...
- 11
0
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1
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229
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SPI Communication between Raspberry Pi and Arduino questions
Basically the title, but I have been looking into SPI as I am working on a project that basically requires a Serial connection between a Raspberry Pi (as a master) and an Arduino (slave); I intended ...
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-1
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1
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337
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How to upload hex file to Arduino via Raspberry Pi?
I want to upload hex file from Raspberry Pi to Arduino connected via USB.
I am using avrdude but I fail.
pi@raspberrypi:~/test $ ls
beeop led_test.ino.hex
As it can be seen I have this led_test.ino....
1
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1
answer
61
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Obtaining a constant audio signal independent to volume
Sorry if this is a silly question but Is there a way to have an independent gain audio signal from a Raspberry Pi that does not vary with the software volume control?
I am trying to get a constant ...
- 11
1
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1
answer
359
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Moved from main Stack Overflow: Udev Rules Not working with Rasberry Pi - Teensy connection
I am pretty deep into this now and operating at about 50% understanding. We have a Raspi 3B+ running Ubuntu 20.04 for Raspi. We have a Teensy 3.7. They are connected together with a USB cable. I know ...
- 125
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0
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985
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Slow write speeds to Rasberry Pi Pico flash using LittleFileSystem/LittleFS
I have a Sparkfun Things Plus RP2040 with 16MB of onboard flash. I am trying to write a program which uses the flash as a buffer (let's say to store 5MB of data) before writing to an SD card. The idea ...
- 131
0
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0
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80
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Raspberry Pi 4 Model B Project: IoT Parking Apps with Car Plate Recognition for Smart City using Node Red
recently I found a project that involves using Raspberry Pi and Arduino Mega Board to create a Car Plate Recognition system but I am stuck with connecting the pins as I am not a professional in using ...
- 23
0
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0
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23
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Slow serial encoding between Pi4 and Arduino for object tracking
I have been working on a project that involved in Object tracking. I have been using the OpenCV and mobilenetSSD_v2 as my model with a google coral, the video itself has a bit of delay but it's still ...
- 1
0
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2
answers
99
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USB to TTL "for arduino" compatible with Pi?
Not real familiar with these devices yet; is there any difference between this, where it says "for arduino" and perhaps one for a raspberry pi? I have a Pi and just want to confirm whether I ...
- 117
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2
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123
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Can I connect a Raspberry Pi 4B to an Arduino Power Supply Module? And if so, how?
simulate this circuit – Schematic created using CircuitLab
I am trying to use an Arduino Power Supply Module to provide enough power to allow at least 5V and 10 mA through to an external supply. ...
0
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1
answer
32
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Signaling a Pi from an Arduino
I am building a project that uses an Arduino for controlling addressable LEDs and a Pi for sending data over usb. What I am trying to figure out is whether there is a way to have the Arduino signal ...
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0
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0
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146
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How to send a string from RaspberryPi to Arduino via serial interface?
I want my HomeAssistant being able to send out RF433. HomeAssistant is hosted on RaspberryPi while the RF433-module is on ArduinoNano.
I am referencing this article with some modification.
How to send ...
- 101
1
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2
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515
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Can't upload sketches to Arduino Uno with Raspberry Pi 4
Using my raspberry pi 4 with Arduino IDE to upload sketches to my Arduino Uno.
Raspberry Pi 4 is encased in an Argon Neo (in case that's important).
At first I tried to get the board info and received ...
- 13
0
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1
answer
36
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Check on Rasperry Pi what is connected to Arduino Uno
i have a question regarding Rasperry Pi and Arduino. I have them connected via USB and on the Arduino is a NFC Reader connected(via Pins). Can I look on the Rasperry Pi with a command or something ...
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-1
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1
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109
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I2C conflict between Raspberry Pi and Black Pill (STM32F411CEU6)
I'm doing the following experience:
I have a pressure sensor and I'm doing some readings using a Raspberry Pi 4 and a Black Pill (STM32F411CEU6), using an I2C connection. The sensor has pull-up ...
- 233
1
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1
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76
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How to use 433 RF codes to start actions on Rpi
My setup is:
Arduino with 433 cheap transmitter module, photodiode and a laser and 433 receiver connected to Rpi, button.
I've used rpi-rf lib to receive codes.
I'm trying to make stopwatch that when ...
- 19
1
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1
answer
1k
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Serial port fails after some time
I use a RPi 3b to request and receive float values over serial from an Arduino Nano (fake). For that I use python and pyserial.
Arduino Loop:
if (Serial.available() > 0) {
String req = Serial....
- 13
0
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2
answers
730
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433MHz RF communication between Arduino + Raspberry Pi
I bought a 433MHz receiver and transmitter to send data from a Raspberry Pi 3 to an Arduino Uno.
I searched the internet for tutorials, Arduino StackExchange and Raspberry Pi StackExchange but I did ...
- 249
1
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2
answers
1k
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over-current condition on usb port when connecting arduino nano
Hi I am trying to power an arduino nano via usb port. I am using a 5V 3A power supply.
I have 2 different usb cables. One lights up the arduino, but it is not recognized in /dev/ttyACM0
The other one ...
- 11
0
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1
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211
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Wireless transmission multiple Arduinos to Raspberry Pi
I am fairly new to this, having worked only a bit with Arduinos. I would like to know if it would be possible to connect multiple Arduinos to a raspberry, just to transmit a signal.
Description:
A ...
- 1
0
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0
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156
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LED strip works through Arduino PWM, but not Raspberry Pi PWM
I've been stuck on this for a while. I'm following a simple tutorial for RPi-controlled LEDs. From this, my LEDs do random stuff and don't light up correctly. I've been trying strandtest from this ...
- 121
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1
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279
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How to send data from RPI to Arduino via I2C
Im working on a project to build an autonomous lego car.
Im running into some problems here, and i could use some help. Right now, im struggling to send and receive data from RPI (4) to Arduino (Nano)....
- 1