Questions tagged [datalogger]
The datalogger tag has no usage guidance.
93
questions
2
votes
2
answers
437
views
How to Solder RN-42 to a Breakout Board
I have an RN-42 Bluetooth module (without any of the breakout boards), and I would like to use the RN-42 for data logging (e.g. temperature, humidity etc) via Bluetooth.
What components do I need and ...
- 29
2
votes
0
answers
50
views
Making a low-cost in situ fluorometer with Arduino
I am making a low cost in situ fluorometer with Arduino based on this paper
The paper lists all the instruments required for the device, but since some of the products were outdated/hard to find, I ...
- 23
0
votes
0
answers
15
views
Power Analyzer N6705C ELOG query returns empty
I am attempting to use the external data logger (ELOG) of an N6705C to record voltage & current, then pull the measurements from the data buffer. When I use the below SCPI sequence it runs without ...
2
votes
0
answers
74
views
Data Logging Medium: SD Card or USB
I am on a project that requires data logging and I am using an STM32F1 MCU. The amount of data is around 400 bytes per log entry. One of the environmental conditions of the deployment is vibration. It ...
- 21
1
vote
0
answers
104
views
Logging GYRO Data via cheap modules or Black Box
I'm trying to figure out a simple solution to log gyro data to use with camera stabilization software.
I know I can use the blackbox from an old flight controller with an external SD card logger, ...
- 21
0
votes
0
answers
27
views
Programming - battery energy logging; creating negative and positive data output from a single sensor
I'm using a single bidirectional Hall effect sensor to read the current coming to and out of a battery, but an application requires 2 separate sensors; one for incoming and 2nd one for outgoing energy....
- 87
0
votes
1
answer
67
views
MCU or other boards with 100 MS/s ADC [closed]
Are there any commercially available microcontrollers or SoC or SBC boards with integrated ADC that can do a sampling at 100 to 150MS/s. Looking for making a high speed and economic data capture ...
- 101
-1
votes
1
answer
51
views
Access meter readings remotely
I am not an expert on interfaces and communication protocols and I am trying to get data from several meters to read it remotely. The meters have an M-Bus interface to a Data-Logger. The Data-Logger ...
0
votes
0
answers
41
views
Why are we printing alarm in compact data logger?
I understood most of the things of compact data logger but could not understand why are we printing alarm? And how is that possible to print alarm? Can you share? Also why is there 2 way communication ...
- 3
0
votes
2
answers
42
views
Are data acquisition system and 'microcomputer on instrumentation design" and data logger the same thing? [closed]
This is data logger-:
This is data acquisition system-:
This is "micrcomputer on instrumentation design"
All 3 look quite similar. What is the difference between each of them? Sadly, ...
- 3
0
votes
0
answers
86
views
How to design a data logger?
Signals from three transducers are to be recorded in data logger. The analogue signal supplied by the three transducers are dual polarity (-50 mV to +50 mV) having frequency is 5 kHz, 10 kHz and 15 ...
- 27
0
votes
1
answer
63
views
Logging and retrieving large bursts of sensor data from an Arduino
I was wondering, if I put an Arduino with a few sensors on let's say a water rocket to track acceleration and height and what not, how would I save this data?
I'm assuming that I want to have a high ...
- 47
0
votes
1
answer
60
views
Would analog data loggers record PCB 353b33 accelerometer datapoints for a minute or more?
I'm currently recording data points from an analog accelerometer (PCB 353B33) using a TDS3014B oscilloscope which has a record length of 10,000 points at a sample rate of 1.25 GSa/s.
Since the ...
0
votes
1
answer
61
views
What to consider when choosing a crystal
I'm working on a Datalogger project power by a battery that needs to take sensor measurements and broadcast the parameters to a server.
The power source to the CPU is 3.3Vcc from the battery.
The ...
0
votes
1
answer
31
views
GPS Logger Trigger Circuit Integration
The Arduino UNO and GPS shield logs the coordinates by the use of the trigger inputs. The trigger takes +ve 5 to 15v on a pin. (See Image 1)
It is designed to be used to log, each time a solenoid ...
- 11
0
votes
0
answers
78
views
ADC input filter design for a low sample rate data logger
I am looking to get advice on anti aliasing filter design for a data logger I am developing, which has a sample rate configurable from 100 ms (10Hz) up to 24 hours (i.e. wake up, take a sample, write ...
0
votes
0
answers
65
views
Send data over server from microcontroller
How large chunk data of data is send over internet using GSM module or ESP from some kind of microcontroller.
As they both have a limit of data sent by TCP so how is it done and what is used to ...
1
vote
3
answers
248
views
Low-power Linux-based ARM system on module for data logger? [closed]
I want to develop a data logger with several hardware characteristics (low-power consumption, SDI-12, I2C, SPI, UART, USB, Ethernet, touchscreen display, SD card, RTC, internal memory at least 128MB......
- 327
0
votes
1
answer
205
views
Does a program exist to draw logic signal waveform from csv data?
Assuming that I want to collect several seconds of activity of digital signal on multiple pins of a device, one way is to create a simple FPGA design that buffers all that information and then ...
- 9,669
0
votes
0
answers
44
views
Wireless ADC Logger Test System
I am looking for a wireless ADC data logger system. The idea is to be able to connect to a test sensor and save output data on a pc. Ideally the system would have:
Range of at least 10 meters
Be ...
- 4,499
1
vote
1
answer
505
views
Connecting K-Type Thermocouple wires to a data logger with a male and female plug
I'm trying to setup a temperature data logger using Graphtec GL240. I will be using K-type thermocouples for the logger. I want to run short length of k type cables from the logger to a female K type ...
- 13
2
votes
1
answer
1k
views
Resetting of NodeMCU ESP8266 in deep sleep
I have been doing a project as my first project to learn ESP8266 applications. My project is a temperature and humidity values data logger and upload the data to Thingspeak.
The sensor used is DHT11.
...
2
votes
1
answer
262
views
How to save a bit sequence from oscilloscope?
I'm using two wires to communicate between devices. First wire is a clock, second is a data bit. Logic is simple: master device (AVR ATMega in my case) sets a value on the data pin, then raise "1" on ...
- 121
0
votes
1
answer
82
views
What do I need to do to connect an ADC IC to a Adam 6066??Is it even possible to read the inputs from the ADC chip?
I am working on a input array that uses a ADC (MCP3208 or something similar) to read in several analog inputs and convert them to Digital signals that go into an ADAM 6066 Module. What would I need to ...
- 105
0
votes
1
answer
468
views
FatFs strange behavior when writing to text file
I wrote a small program with PIC32MX microcontroller that sends data to a txt file in the SD card, then reads the data back from the file and finally compares the data before sending them with the ...
- 352
0
votes
1
answer
69
views
hardware interfacing and data logging
I am working on a idea. The idea is to measure current from a current source, which transmits 3 levels (ex: 10 20 30mA). Which if possible should be logged, representing 3 states with 3 different ...
- 41
0
votes
1
answer
70
views
way to display the data from a multi function meter [closed]
I have a multi function meter and i want to collect the data and display it. My idea was to create a api for serial communication?? will the idea work or is there any other better way?? the meter uses ...
4
votes
1
answer
474
views
Ultra low power audio recorder
I'm trying to design an ultra low power audio recorder, in order to monitor ground noise in rural areas. The circuit I'm working on is based on a microcontroller (STM32L100RC) and an audio codec (...
- 43
0
votes
1
answer
377
views
Why are high-sampling-rate data acquisition boards so expensive? [closed]
An example would be the NI USB-6366.
My guess is that it's primarily due to the analog-to-digital converter (ADC) since it should be the component responsible for the high rate conversion, even ...
- 123
0
votes
0
answers
281
views
Logging current draw over time, 100mA +
What is a good way to log(sample) current draw over a period of time, from e.g a RaspberryPi with some equipment connected to it (100 mA +).
A datalogger like the EasyLog | EL-USB-4 have a ...
- 65
1
vote
2
answers
875
views
How can these GPS/GPRS bike tracking locks be so power saving?
I am really puzzled by how these GPS/GPRS, solar-powered bicycle locks seem to be running on very little power. They are fitted with a tiny solar panel.
As you may know, these locks are popular these ...
- 327
2
votes
3
answers
125
views
1-11 Hz to DC voltage signal
I'm doing an internship where we are connecting all kind of sensors on a CAN-network for an automated datagathering.
There is one sensor that sends a 50% duty cycle frequency signal between 1 and 11 ...
1
vote
1
answer
139
views
Oscilloscope stop getting data
I have a Rigol DS1000Z, and I'm using it to sort of log data. I have a wavelength tunable laser that creates an electrical pulse (start of pulse is start of sweep, end of pulse is end of sweep), and ...
- 1,283
1
vote
2
answers
342
views
Current measurement in 12V LED circuit
simulate this circuit – Schematic created using CircuitLab
Just purchased an Omega data logger, i'm very concerned with the readings I am getting out of it. As a start I just want to make sure ...
- 405
0
votes
1
answer
40
views
Reverse Polarity Protection for DAQ box
Firstly, I am a ME seeking advice from EE's. I have a Quadvolt voltage data acquisition box from Omega (P/N: OM-CP-QUADVOLT-30V) http://www.omega.com/pptst/OM-CP-QUADVOLT.html, that I intend on using ...
- 405
1
vote
1
answer
61
views
Interpretation of ouput
I have everything in place to log my consumption of elektricity and water, but have no success to log my gas consumption.
My gas meter is an old mechanical meter with rotating numeric wheels.
There is ...
- 101
0
votes
2
answers
445
views
Lowest possible latency, 1-way RF transmission
I am working on a wireless telemetry project with a bit of a twist.
I have a CC3220 inside of a rotating shaft connected to an AMS board collecting pitch readings from a magnet mounted inside.
The ...
1
vote
2
answers
75
views
Low power voltage step down for datalogging
I am trying to design a datalogger that runs off battery power and am trying to maximise runtime.
The logger is infrequently (every 5 minutes) logging 0-30V analog and digital signals.
One of the ...
- 2,275
1
vote
2
answers
168
views
Measuring computer power usage
I am trying to optimize the power usage of a custom application (C#) running on an embedded computer (Intel i7, Windows 7). To do so, I am measuring the current that the system requires while running ...
user139733
2
votes
4
answers
125
views
Are there chips encoded with fixed 8bit values?
I am assembling a few data acquisition fixtures and would like my software to be able to identify the fixtures programatically. I have a breadboard that I can use for basic circuits. The DUT signals ...
- 339
0
votes
1
answer
1k
views
IEPE Circuit Model
Do anybody have a circuit model of a IEPE Loop?
I am requiring to model the response of IEPE loops for checking how the frequency response of a sensor can or cannot be degraded under changes on the ...
- 1,274
1
vote
1
answer
127
views
Will Open Collector Output of 0~12V damage 0~5V input DAQ?
In my lab configuration, I am using open-collector with 2K Ohm pull-up resistor to 12V.
The data aquisition card I am using is from national instrument.
If I look at the Low and High voltage of open ...
- 916
0
votes
3
answers
159
views
Hacking characters in custom LCDs [closed]
Say I have a device/instrument that has custom LCD for display with mix of text and graphic/icon on the corners. I want to log the values and feed it to the computer or say automate a response when ...
- 177
-1
votes
2
answers
961
views
Level shifter circuit
I found this level shifting circuit online. When I simulated this on Multisim, it works fine, but how do I find the relationship between the output and the input. Here is the circuit.
- 17
1
vote
0
answers
873
views
3 Phase power logger with ADC and Raspberry Pi
I am building a 3 phase power logger with the ability to measure 3-phase AC and 2 DC inputs as well for a final year project. A typical application would be measuring a small inverter for a solar ...
- 369
-2
votes
2
answers
105
views
Data logging over 5km range [closed]
I am working on a project of designing a system for leak detection in pipelines. I want to monitor pressure/flow in both endings of a 5km long pipe and acoustic emissions onto some crucial points of ...
- 103
0
votes
1
answer
1k
views
What is the best way to store date & time in eeprom using less bit possible?
I want to save data associated to a timestamp (like a datalogger) along a month, in a very small memory (probably only 1024bytes). I was thinking using epoch time to save timestamp but it already take ...
- 1
1
vote
0
answers
965
views
STM32F401 SDIO with DMA
Please need help in:
Do somebody have a a working code that writes to sd card via sdio using FatFs and DMA?( data logger)
In a poling mode (without DMA) I am writing to .bin file and getting error ...
- 11
0
votes
1
answer
64
views
Advice re. 4-20mA signal readouts
Apologies if this is a very low-level question, but I have no experience in this field and don't know where to start. I'm looking to borrow an accurate pressure gauge from GE:
https://www....
- 101
1
vote
3
answers
164
views
Data logger component identification
I'm trying to reverse engineer an aging datalogger.
Before building my schematic, I would like to identify all the components. There is one component that I can't seem to identify after many hours ...