Questions tagged [datalogging]
logging data into some storage or memory
122 questions
0 votes
0 answers
252 views
How can I save an image from the ESP32-CAM to a separate SD card?
For a project, I need to take a picture with the ESP32-CAM, save it to an SD card, and then have the Arduino UNO access the image. I have the ESP32-CAM with OV2640 connected to the ESP32-CAM-MB, which ...
0 votes
1 answer
54 views
Arduino used as a multi-sensor controller, then sending results to a laptop to post on a web page
We are a non-profit group, we run a salmon rearing pond on Lake Michigan. We are upgrading our equipment that is over 50 years old with monitoring sensors. We are adding 9 temperature, 5 oxygen, 2 air ...
- 11
4 votes
1 answer
1k views
Connecting pressure sensor to Arduino to collect pressure and time data
I'm trying to build a pressure data logger using an Arduino and Mindman MP47P-03-F1 (https://www.mindman.com.tw/proimages/pdf/E_MP47_S.pdf) pressure sensor, the sensor is connected to an outer 12-24 ...
- 49
1 vote
1 answer
181 views
Inconsistent results when reading input looking for spike patterns
I'm writing a library that will interface with a control unit on a refrigerator compressor pump (QDZH35G). One of the features of the control unit is that it can detect what problems it's encountering ...
- 119
1 vote
1 answer
274 views
Modbus rtu server library which logs the requests
Kindly seek help. In my project I want to ‘fake’ a smart meter via Modbus rtu server for a solis inverter. Somehow the solis realizes that I am faking him, so I am wondering which Modbus rtu server ...
- 21
1 vote
0 answers
292 views
RTC problems after longer time periods
I'm using the MKR NB 1500 for server sending, an ENV shield for measuring the environment, and an external lithium battery to power the circuit. The internal RTC and WDT on the NB 1500 are used. The ...
- 33
1 vote
0 answers
61 views
Why is this buffer not being sent to the server?
I'm loading a buffer with different data recorded by sensors and sending them to a server. But I also wanted to log when the data was sent on the client side, so I formatted the time of my RTC clock ...
- 33
1 vote
1 answer
434 views
How to compile Arduino-ESP32 core with ESP_LOGx
Why? In Arduino IDE you can set the core debug level, however, this only sets debug level for files in Arduino-esp32 but the core which is distributed as a precompiled library in .sdk files, located ...
- 21
0 votes
3 answers
68 views
How do you deal with balancing the limited storage of Arduino with the decrease in speed if you just print everything as it gets measured?
I am working on a simple data acquisition system based on an Arduino Uno. Each run would ideally collect up to 10k data points (all doubles). Obviously, the Arduino doesn't have the capacity to hold ...
- 101
2 votes
1 answer
625 views
Can I use Data Logger Shield with Arduino Sensor shield V5.0?
so I did a little research on this but the answer to my particular problem did not exist. I have a data logger shield created by deek robot (deek-robot.com) which seems pretty similar to adafruits ...
- 121
0 votes
1 answer
2k views
how can I delete contents of an SD card in arduino?
I have a datafile, datalog.txt I can open, read and write cool. What is the best way to delete all the file contents? Should I try rewriting the SD card file with NULL data? I have been reading the &...
- 902
0 votes
1 answer
724 views
Seeking to write a ton of information to an SD card as close to live as possible
So I've recently started a project where I am using an accelerometer, along with a SD card breakout board. I've been able to get information to write properly to the SD card with no issues whatsoever. ...
1 vote
0 answers
89 views
RTC shield with LCD and Keypad
I am having issues with a code that I have been modifying. I can change the TIME, and DATE from a keypad, and see the data on the serial monitor, but it is not recording on the SD Card. Anyone that ...
- 31
2 votes
0 answers
119 views
Parsing read SD file into 2 variables
Recently I started some tests controlling water heater with temperature sensor data as described in detail here So far I've been testing a small dataset to control water temperature that is quite easy ...
- 83
1 vote
2 answers
52 views
Can UNO log more PCB 353b33 accelerometer data points compared to TDS3014B oscilloscope?
I'm currently recording data points from an analog accelerometer(PCB 353b33) using a TDS3014B oscilloscope which has Record Length of 10,000 points at a Sample Rate 1.25 Ga/s. I'm want to record more ...
