Questions tagged [datalogging]
logging data into some storage or memory
105
questions
0
votes
1answer
32 views
Combined code and nothing works. Head scratcher for sure
I have spent a little over 2 hours trying to debug this code. All I did was combine a section of code to write to the SD card. Both of the codes work fine on their own. I can't figure this one out. I ...
0
votes
0answers
20 views
Using SMS to send commands to the Arduino. Having problems in data parsing
I'm still inexperienced in programming and i apologize in advance if my mistakes are stupidly obvious. This sketch I'm working on is a basic GSM project using SIM900a Mini and an Arduino UNO that ...
-1
votes
2answers
79 views
Sensors / Data logging Temperature and Humidity 50ft away [closed]
I am looking at using a DHT11 for logging my temp and humidity in a few boxes i have.
I need to be able to run these sensors several feet away (50ft ish) I would like to use Ethernet cable to do this....
0
votes
4answers
45 views
How to link a computer processor to an Arduinno on a board? [closed]
I am completely new to Arduinno, so please forgive if the question is stupid.
Here is the problem: I have a project where I want an Arduino (or similar microchip board) to handle some sensors and ...
-1
votes
2answers
76 views
data classification with arduino
I want to classify my data from 3 sensors with arduino so that every time i enter the specific date or hour, or also it can be a period of time like 10 days ago, it shows me the exact data. In other ...
-1
votes
1answer
33 views
Multiple MPU9250 Synced
I am interested in collecting data from 3 MPU9250 via I2C communication protocol. As I've read, I can collect measurements on the same I2C Bus from up to two MPUs. However, how can I collect Synced ...
-1
votes
1answer
43 views
sending specific date's data from data logger shield to serial port
I was wondering if it is possible to save lots of data( exp: one year data) in data logger shield and then read them from serial port without ejecting the SD card... this part of my question is fine......
0
votes
0answers
30 views
Can't log mpu6050 and gps data to sd card at the same time
I am working on a school project, where I have to log GPS and acceleration data to an sd card at the same time, but I cannot get it to work. Logging GPS and acceleration data separately work fine.
The ...
0
votes
1answer
175 views
ESP32 saving data to SD card in .csv doesnt format correctly
i want to save a vector to a .csv file on a SD Card.
I watched this tutorial on how to do it and it describes it perfectly even though its kinda dated.
My Problem is that everything is saved into ...
0
votes
0answers
23 views
Micro controller Recommendation for Data Acquisition System?
I am doing a project involving connecting multiple environmental sensors to a MCU in order to collect data during an experiment.
I need a minimum of 15 analog differential input channels, with a ...
2
votes
2answers
319 views
EEPROM.get returns bad data
I am using the attached code.
What I am trying to do is:
Test if there is a personalized "board serial number" written in the EEPROM (by previous code run)
If data found was not 7 characters (e.g SN-...
0
votes
1answer
47 views
SD card readline reading batched lines?
So, I am trying to transmit float data, over UART, from my Arduino to another machine. The log of this data is really large, so I am forced to put it on an SD card, and read it into the Arduino line-...
0
votes
3answers
74 views
How to manage two alarms with one interrupt?
I have a datalogger using the RTC DS3231 as an interrupt generator. I am able to have the interrupts work but here is my problem. I would like to take 2 separate measures from 2 different sensors (one ...
0
votes
0answers
67 views
SD delay in writing to file
I am using MPU6050 on an Arduino Mega 2560 with Data logging shield v1.0 and an 8Gb Kingston Micro-SD HC card.I am facing a problem in logging and successfully writing to a file 100 values/sec. Now in ...
0
votes
0answers
374 views
Data logging from ESP32 through UDP socket to PC
The idea is to send raw sensor data from ESP32 to PC through WIFI UDP socket and store it into CSV file using Python.
As you can see from the code I am chopping 8 bytes of data into single bytes and ...
0
votes
1answer
43 views
Two arduino boards with sensors i2c
I am new and lost I have been searching the internet about how to transfer data of multiple sensors from one Arduino to another using i2c but no luck. all the codes and tutorials online focus on ...
0
votes
0answers
152 views
PLX DAQ is logging data on the debugger but not diasplaying it on excel sheet
My code is this:
I tried to send arduino serial monitor data to plx daq but the sensor data is not displaying on excel.
#include "Wire.h" // This library allows you to communicate with I2C devices.
...
0
votes
0answers
382 views
How to read correctly binary data on sd card from a structure?
I am currently struggling to apply Majenkos solution to read binary data from an sd card. I am writing data as floats from a 3-axis accelerometer via a struct this way:
struct data {
float acc_x;
...
0
votes
0answers
374 views
Using CoolTerm to receive Serial Data into a saveable file
Have functional code that reads data from sensors. Found that I need to use a terminal program to grab the data from the serial output using CoolTerm by Roger Meier.
Wasn't able to test it with my ...
0
votes
0answers
216 views
I'm not getting the readings of sensors connected to an Arduino MEGA correctly using PLX-DAQ
I'm trying to send data from four sensors that are connected to my Arduino MEGA to an excel file using PLX-DAQ. So I want to keep taking readings at an interval of 1 second until I wish to stop. So I ...
4
votes
2answers
110 views
Writing to sd card with a sampling rate 50ms or less? I have a sketch that writes to sd every 1s but jams at faster sampling rates. Please help?
My code below reads data from an ADC and 3 digital pins via a Mega and prints to an SD Shield (Deek Robot). I want to be able to read the data every 50ms (20ms ideally). I can't get below 250ms.
I've ...
0
votes
1answer
44 views
I cannot open/write to dataFile SD shield in mySketch but have no problem with Datalogger example sketch from the SD library…?
Hello Arduino Community
I am collecting data and attempting to log it on to a Deek Robot SD shield via a Mega.
I have the data in a dataString which I can Serial.print to the monitor but would ...
0
votes
1answer
146 views
Does LabVIEW Linx affect the communication speed with Arduino?
I am using LabVIEW to connect to Arduino Mega. I control a logic gate to switch the current On/Off and at the same time there is an I2C connection with a sensor. It came to my attention that the ...
1
vote
1answer
226 views
Why am not being able to initialize the Micro-SD?
The reason I bought this MicroSD board because to follow their guide
and I have used the recommend code in:
File > Example > SD > CardInfo
also did the slight change in the code for const int ...
0
votes
1answer
250 views
creating HTTP persistent connection, to create 'smooth' data over GSM sending
Project goals
Send data over GSM to firebase
Fast sampling - need to send 16 bytes every half second to firebase
Send data using GET or POST to server with PHP script, that redirect data to firebase
...
0
votes
0answers
194 views
Send data from arduino to server using GSM, TCP
My actual connection is like:
Arduino -> GPRS(http)-> my server(php script)-> firebase <-android plotting app
But it only allows to send some data once every 2 - 3 seconds (depending of ping to my ...
0
votes
1answer
54 views
Can't store RFID data in the next 5 bytes of array
I'm working on RFID project to handle multiple cards.
I did most of the things OK. But now I have one problem. Which is the following:
The RFID code is 5 bytes, so I need an array of 5 bytes. If ...
1
vote
0answers
34 views
Is it a rule of thumb to always use a buffer for realtime data acquisition from a microcontroller? [closed]
I probably have a misunderstanding one way or another, so this may be a bad question, but whenever I see sketches of projects that are outputting realtime data or in general, I always see the use of ...
0
votes
1answer
164 views
Fast data logging
I want to store noise data (basically from A0) from an Arduino Uno to an SD card with faster writing speed, preferably by using 512 data together and the write it at once. What should be the code?
0
votes
1answer
74 views
Arduino stops logging data after ~32761 seconds
I made a small set up to log temperature on SD card, everything is running smoothly until it reach 9:06:01 of logging that is 32761 seconds. I know that corresponds roughly to the maximum value of an ...
0
votes
0answers
178 views
AD7606 DAQ and datalogging
I'm making a Data Acquisition System for force impact usign an AD7606 from Analog Devices, an Arduino DUE and a load cell. I already tested it following this guide an making the proper changes for ...
0
votes
0answers
53 views
Unsure how to get pressure data from MCP3424
I am having trouble reading data from an MCP3424 chip, specifically the one from this website:
https://uk.rs-online.com/web/p/general-purpose-adcs/6696086/
I have a pressure transducer that connects ...
1
vote
1answer
352 views
Data loging while browsing a menu on LCD shield
I'm new in arduino and not particularly awaken when it comes to code ;) .
I'm developing a device SD logging Temperatures from 2 thermocouple .
Hardware works well and I'm now trying to refine use of ...
0
votes
1answer
351 views
Conflict between SD card shield and accelerometer
I'm trying to get the SD card (Adafruit microshield SD card) and an MPU6050 accelerometer to work at the same time. When I connect the SD card to the Arduino (without the accelerometer), it's ok; When ...
0
votes
0answers
321 views
How can I read the serial output of STM32F103C8T6 from USB to Serial TTL?
I recently bought a STM32F103C8T6 board (blue pill)
I programming to it using the USB to Serial TTL I bought (CP2102).
I'm still taking very first steps and trying to figure out how to operate the ...
0
votes
3answers
254 views
Arduino log file directly to file
I have problem because I need to read values and then save them in a .txt file, but Arduino doesn't have a physical connection with my computer. It only has a connection with a computer using Ubuntu ...
0
votes
1answer
718 views
Interfacing AD7606 with Arduino Due. How to data-log?
I have an 16 bit ADC7606. It is in parallel mode. I have a working sketch that allows me to read 8 channels, convert the 16 bit integer to decimal and then serial prints to monitor. I would like to ...
0
votes
1answer
97 views
Averaging input from multiple input over a fixed amount of time (estimated)
I am trying to average input values for a number of inputs and have it then store those averages into a string to write to a txt doc on a sd card.
I am using:
// read 6 sensors and append to the ...
0
votes
2answers
53 views
Tian stops working after some hours
I'm having a very strange problem. I have a Tian that is programmed to send out sensor data to a server
every x seconds.
My program run well but after 14,15 hours of operation it stops working and I ...
3
votes
3answers
2k views
Is it possible to use extra AVR Flash memory as non-volatile EEPROM-like Flash memory storage?
In STM32 microcontrollers it is possible to use a technique that ST calls IAP, or In-Application Programming, in order to write to the Flash memory from your running application. They even have a nice ...
1
vote
2answers
670 views
Uniform timing when using Arduino for data acquisition
I am using Arduino UNO together with a SPI ADC (LTC1859) and SRAM (23CL1024) to record a series of data points at approx 2 kHz sampling rate (let's say a few thousand data points).
I have some ...
0
votes
2answers
336 views
EDB char array problem. New input word overlaps the previous words saved
I have been searching everywhere now and nothing seems to work out for me. When I try to input a new word, it overlaps the previously entered words.
Here is my struct definition:
struct LogEvent{
...
-1
votes
2answers
455 views
EDB. Is it possible to create multiple tables with db.create()?
Good day! I seem to be having trouble creating multiple tables with EDB. I am using Arduino UNO and SD Card module to save my db.
Here is my Serial.
Here is my table declaration.
struct ...
0
votes
2answers
844 views
Using a Micro SD card for data logging, bad idea? Reliable?
I'm planning a project that will read data from an I/O board.
The micro SD card would hold data for input bit identity, labeling ?, then logging after events end.
Nothing would be written to or read ...
0
votes
2answers
495 views
How to use an Arduino to measure speed of rocket
I am not very experienced with Arduino and I am trying to learn it. I was wondering what is the easiest and most effective way to calculate speed and log it every second so to say. This would be ...
-1
votes
1answer
2k views
Download and print data from Thingspeak
I opted to try doing this with Thingspeak Library instead, which @gre_gor suggested early on. Worked much easier!
Here's working code for anyone else trying to do this. I used the MKR1000.
#...
0
votes
1answer
198 views
3 AC current sensors using one Arduino Uno board measuring at 200Hz
I'm new to electronics and need some help please.
I'm planning to measure current of a 3-phase output using one sensor for each phase (thus 3 sensors would be required). The frequency of data ...
0
votes
1answer
1k views
ERROR on SIM900AT comand HTTPDATA (POST method)
Good day community, I have a project which is VEHICLE GPS Tracker and I'm using Arduino Mega, NEO GPS6MV2 and SIM900. I'm using SIM900 to send the GPS coordinates on a web server. I'm using the POST ...
0
votes
2answers
647 views
How to read data from an NI DAQ?
I'm using an Arduino to control an experimental setup and read analogue signals from some sensors. But there are other sensors for which I need a DAQ for. I have a National Instrument USB-6259. On my ...
0
votes
2answers
759 views
Arduino Uno SD card fails to initialize
I'm not sure why my SD card fails to initialize when I run my code (below) but works when I just check to see if it is being read by the Arduino with the CardInfo code in the Arduino library.
The ...
