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.
0
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0answers
20 views
Convert C code to python for 16 bit CRC check
I have some C code running on my Arduino that does a CRC calculation. I can't get it to work on Python with my RPi. I suspect it's because the Arduino is using a 16 bit unsigned integer and RPi is ...
0
votes
0answers
13 views
NGINX server on RPI cannot read POST request
I want to send data from an ESP32 board to my RASPBERRY PI with a NGINX server on it.
I load on my ESP32 a program from the ARDUINO IDE. In this program I use the library HTTPClient.h form which one ...
0
votes
0answers
21 views
Raspberry pi 3 Model B USB ports usage limit
I am working on a project using Raspberry pi 3 Model B in it. I want to connect three components to raspberry pi's USB ports and I want to know that, is this safe? and it doesn't hurt the board itself ...
0
votes
1answer
62 views
RPI as server for home automation
I would like to ask for an advice in choosing controller/platform for my project. Basically what I want to do is RPI local server with web server, where I can display data from arduino sensors and ...
0
votes
1answer
33 views
NRF24l01+ Arduino to Raspberry - Receving working randomly [closed]
I am using a Raspberry Pi 3B+ (RF24 lib) and Arduino Mega (RF24 lib)
I have cleaned the pins and soldered a 10 uF capacitor between vcc & gnd
The distance between the two modules has no effect.
...
1
vote
0answers
20 views
Trying to use pigpio wavechains to drive very specific acceleration and deceleration
I'm working on a kinetic sculpture that involves a large pendulum swinging perpetually left to right.
I'm using a raspberry pi 3 B+ / arduino uno with a DM860AC to control a nema 34 stepper.
I was ...
0
votes
0answers
53 views
Connect raspberry and arduino
Can I make a raspberry pi send commands to an arduino via wifi? If so, can I make the arduino return pins values to the raspberry?
My idea is to control some arduinos in a rest api based method (using ...
0
votes
2answers
43 views
Arduino sensors without board directly on Raspberry Pi
I'm a beginner, just so you know.
Okay, I've a Arduino IR Infrared sensor right next to me, some jumper cables and a Raspberry Pi.
My question is: Do i need an Arduino board to hook the sensor up to ...
0
votes
1answer
78 views
How to use an ultrasonic sensor with nanpy on Raspberry Pi?
I have been trying to run the following code on a Raspberry Pi, to use the ultrasonic sensor HC-SR04 with an Arduino that is a slave to a Raspberry Pi:
from nanpy import ArduinoApi
from nanpy import ...
0
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0answers
99 views
How many arduinos can I control with one raspberry pi 3 B+
I have been reading about using a Raspberry Pi to control an Arduino. My goal is to control several Arduinos using a single Raspberry Pi, in order to automate several tasks, it is important to note ...
0
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0answers
28 views
Please Help Arduino - Raspi NRF24L01 connect
I want to connet raspi and arduino nano with nrf24l01.
I run example "getting Started" successfully, and i check my raspi and arudino, nrf24l01 is all good.
but i want send int message, i change some ...
0
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0answers
61 views
RFM69 Radio Transceiver: Arduino is not registering acknowledgement for transmission sent by Raspberry Pi
I am building a system in which an Arduino Uno with an RFM69 radio chip transmits data to a Raspberry Pi running a script in Python.
I am using the RFM69 library for both scripts:
Arduino: https:/...
0
votes
0answers
69 views
python: bluetootherror: (111, 'connection refused')
There seems to be a problem with connecting the Arduino + HC-05 to the raspberry pi 3
Here is my code
from bluetooth import *
import threading
import bluetooth
from pprint import pprint
host = '98:...
0
votes
0answers
30 views
Rasperry Pi and Arduino echo over USB
I am trying to create an "echo server" with Arduino UNO, so that user could send some message to it through Raspberry Pi and receive the same response. On Pi I am using Python and PySerial library to ...
0
votes
2answers
123 views
Incorrect Encoder tick counts using Raspberry Pi
Hi I have a DC motor with encoder which has a PPR count of 990 (No load RPM = 107). However, I tried to read the number of ticks (on a Raspberry Pi 3B) by rotating the wheel 1 turn and I get a PPR ...
0
votes
0answers
103 views
sample rate of ADC with raspberry pi and arduino
I connected the ADC PCF8591 to the raspberry pi3 and the number of samples per second is about 80.
When I connect this ADC to Arduino, the number of sampls per second with baud rate 9600, about 270 ...
0
votes
0answers
92 views
Wireless Gyro/Accelerometer Sensors for Raspberry Pi
Is there a way to have a wireless gyro/accelerometer sensor connected to Raspberry Pi?
Have worked with single MPU-6050 in the past. Was wondering if there was a way to have a wireless sensor instead....
0
votes
1answer
91 views
Rubbish Values (b'\x00\x00\x00 … ') - UART of Arduino to RPi 3B
I am getting b'\x00\x00\x00 ... ' together with the data I want. For example, my Arduino is writing 'hello raspberry' to RPi. At the RPi, it receives 'b'\x00\x00\x00 ... hello raspberry\r\n '. Why?
...
0
votes
1answer
46 views
Serial connection with raspberry pi to arduino, works only once and needs a hard reset every time
so I am working on a project where I have to connect an arduino to the raspberry pi through serial and then transfer the input from the raspi to another I2C device. So, just to test things out and ...
2
votes
2answers
199 views
How to send bytes to dmx using python
I have a headlight connected to my rpi with dmx cable and a RS422 / RS485 Serial HAT shield (https://www.hwhardsoft.de/english/projects/rs485-shield/). According to the instructions it should be using ...
0
votes
1answer
46 views
Connecting raspberry pi with ev3 using i2c
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 successfully replicating) an article about ...
0
votes
3answers
537 views
Arduino-Raspberry Pi fast data communication through serial
I am trying to sample from two analog sensors at highest frequency possible (using and Arduino Uno, MPC3002 ADC), then send the data to raspberry pi to save them as binary file.
Arduino and MCP3002 ...
0
votes
1answer
151 views
Raspberry Pi Zero W - connect Micro USB to FTDI to arduino board
I'm using this FTDI on a Raspberry Pi 3 Model B to connect an arduino board via USB.
can I do the same thing on a Raspberry Pi Zero W using this
USB OTG Micro USB to Mini USB to connect the FTDI to ...
0
votes
1answer
123 views
Wiring setup for I2C communication for RPi slaves
Recently found out that using the pigpio library one can set the raspberry pi to be a slave in a bus setup with an arduino. Someone has even written some test code on the RPi forums which shows that a ...
0
votes
0answers
51 views
Single bit transfer from Arduino to RPi through gpio
Trying to send commands from an Arduino to the RPi through the GPIO PCM. I can't do it through the serial port as the port is connected to a computer and commanding the Arduino. I was planning to send ...
0
votes
0answers
36 views
Raspberry pi analog joystick using Arduino i2c for kodi
so I'm working on a project and among others I want to integrate an analog joystick, like those cheap ones that send analog values between 0 and 1023 for x and y movements. The end game is that I ...
0
votes
2answers
29 views
Raspberry pi 3 GPIO to Arduino [duplicate]
Trying to use the raspberry pi to control an Arduino Uno and I'm tyring to ensure nothing breaks when connecting them. I know that the Arduino outputs at 5V while the pi inputs at 3.3V. This requires ...
0
votes
0answers
14 views
I want to read my rpi2 values from arduino serial screen [duplicate]
im using OpenCV and making some object tracking over the webcam. So i need to read my camera values (objects location x,y ). And i want to read it from arduino pins. How can i do that ? thx already.
0
votes
0answers
20 views
Barcode and Ardunino IR receiver
We are using our barcode scanner as basically a keyboard. Therefore when it scans the barcodes it just prints the numbers associated with that barcode. With that, we are now trying to make our barcode ...
0
votes
2answers
43 views
Raspberry pi: Arduino to Python
my group and I are interfacing Arduino and python on our Raspberry pi zero w so that an IR receiver connected to the Arduino sends the corresponding characters to python, which it does.However, we are ...
0
votes
0answers
42 views
Install Arduino IDE in Raspian Strech Desktop
I'm using a Raspian Stretch in Virtual Machine (VMWare).
I follow the steps to install Arduino IDE in Linux ARM version.
The software are installed OK, but when i click to open IDE, nothing happens.
...
1
vote
1answer
365 views
NRF24L01 Arduino and raspberry
I've been trying for long time communicate arduino and raspberry pi using NRF24L01 module, for now it has been impossible.
I followed the next tutorial: Tutorial NRF24L01
connections Arduino: CE - 9,...
0
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0answers
40 views
IR Sensor/code Issues
I have two questions. Firstly, we have an Arduino IR sensor and we want to use it in python on our Raspberry Pi zero w. Is that possible? The following link is where we bought the IR remote/...
1
vote
0answers
69 views
How to get stream of data from arduino serial monitor on Apache Edgent application (Java application)?
The sample java application for reading random sensor value is given
as:
package org.apache.edgent.samples.topology;
import java.util.Random;
import org.apache.edgent.function.Supplier;
/**
* ...
0
votes
0answers
296 views
Raspberrypi bluetooth error - Failed to connect: org.bluez.Error.NotAvailable
I am getting error "Failed to connect: org.bluez.Error.NotAvailable" with HC_05 and HC_06 bluetooth modules.
I have connected the bluetooth device to Arudino Uno and it detects fine when I connect ...
2
votes
4answers
286 views
Connect to Raspberry Pi Over the Air Without Internet
For a school project, my group and I have decided to make a weather buoy to put in the ocean. We have several parts available to make the buoy, including 2 Raspberry Pis (One version 2 model B, and ...
0
votes
0answers
245 views
SOLVED - How to control Arduino over network with PC via RPi3 using usb serial and socket client/server - Python
Sorry about the title. I honestly spent ages trying to word it well. I failed.
So originally I was running a script on my raspberry pi that used OpenCV for image processing. I had a usb webcam ...
1
vote
1answer
3k views
Failed to connect: org.bluez.Error.NotAvailable - Error
I am trying to connect a HC-05 Bluetooth Module (connected to Arduino Uno) to my Raspberry Pi 3 in the hopes of achieving bluetooth communication between the two to send data from the Uno to the Pi.
...
0
votes
1answer
28 views
Printing Serial Port Not Advancing Line
I have a project in which an Arduino is reading a sensor and printing that value to the serial port. When connected to the serial monitor in the Arduino IDE on my PC, the data is printed flawlessly.
...
0
votes
1answer
31 views
Interfacing Aurduino with PI screen? [closed]
Is there a way to take the output from an arduino that normally displays on a small LCD screen and display it instead on a rasperry pi with a 7 inch screen?
-1
votes
2answers
1k views
insert sensor data in mysql to python [duplicate]
Hello I want to insert sensor data in mysql to python.
My sensor is connected to arduino and it sends sensor data to raspberry pi via bluetooth. Raspberry pi receives sensor data to python code. This ...
0
votes
0answers
29 views
Locking the RPI program enviroment against the public
I am building a car audio display wall for a custom car shop. I have based the nuts and bolts on the arduino mega. The owner would like a touchscreen which is a fairly straight forward thing to do on ...
1
vote
1answer
52 views
Raspberry Pi controlling motors?
Disclaimer: Im still new to the Pi and world of electronics, and google is giving me mixed results
Im going to be attempting to build a robot with the raspberry pi. The question is how is the pi at ...
0
votes
1answer
520 views
Connecting Raspberry Pi GPIO UART to Arduino USB
I use a third-party modified Arduino that has the correct voltages and current limitations to control my robot. I additionally want to connect a Raspberry Pi Zero W to the Arduino that is evaluating a ...
0
votes
0answers
256 views
Transmit 433 MHz Manchester from Arduino - receive on Rasberry Pi
On Attiny85 I'm using Manchester encoding library with code
#include <Manchester.h>
#define TX_PIN 1
uint8_t transmit_data = 123;
void setup() {
man.workAround1MhzTinyCore();
man....
0
votes
1answer
170 views
Errors in distance measurements with the LV-MaxSonar EZ serie
I am working with the LV-MaxSonar EZ2 and a Raspberry Pi 3 model B.
As you know, The Raspberry Pi can not read analog input, that's why I used an ADC (analog to digital converter), an MCP3008 to ...
0
votes
0answers
654 views
How to send data from arduino to raspberry pi zero wirelessly?
Arduino connected with HC-05 Bluetooth module is the transmission section. Analog pin A0 of arduino has the input signal to be sent. The receiving section is the raspberry pi zero with inbuilt ...
0
votes
1answer
135 views
How do you put the serial values(from arduino) to a specific grid in Tkinter? (Python 2.7)
I tried to put values in the grids from a string. But the values are not showing or updating. How do you put serial values(from arduino) to a specific grid in Tkinter? When I run the code, no values ...
0
votes
1answer
527 views
Raspberry PI connect to Arduino using XBEE and serve as a Web Server [closed]
I would like to know whether if I implemented the internal connection between 2 device (Raspberry Pi to Arduino using XBEE), is it possible in the same time to enable Raspberry PI as Web Server that ...
0
votes
1answer
293 views
Rotary encoder is giving less PPR reading
I am testing 400 PPR(Pulses Per Revolution) rotary encoder using code.I am rotating it by using the hand. I have connected Phase A and Phase B and also, ground and Vcc properly. The code is giving ...
