RTClib | A fork of Jeelab 's fantastic RTC Arduino library | Video Utils library

I'm making a project that requires an lcd, and the project was working fine on my breadboard for testing. I moved it to my final product, but now my lcd stops displaying text after a few minutes, or when the potetiometer value is too low. One thing that really gets my attention is that if the potentiometer is fully high, the lcd doesn't clear by itself. When I lower it, it happens again. I have a refresh rate in this project as well for about every 250 milliseconds. Here is the code for my project along with it's schematic.

schematic -

code -

I've been working on collecting flow rates using the Arduino interrupt and I want to time stamp the data using a real time clock.

I have both sketches working individually using the Arduino examples but when I combine them it only writes to the serial port once and I am not sure why.

Once I have the pulse count will save to a SD card for data manipulation.

I'm currently trying to measure remaining time until a given timestamp using Adafruit's RTClib library. My RTC module is a DS3231. here is my TimeSpan object in code:

This is my very first code in arduino. Im trying to build a simple watering automation for my garden. The code contain 3 main functions which is:

1. To topup fertilizer tank with water.
2. To add fertilizer into the water tank while water being topup with assumption fertilizer will be mix during this process.
3. To automated watering process through the day.

For the 1st and 3rd function, Im already got it done (theoretically + small scale system) i think. haha!

Now, for the fertilizer function number 2 (fertilizer_PUMP()), im using 2 peristaltic pump to add AB fertilizer solutions into the tank. Im trying to get the pump to run for the x amount of time but the the function only run once, after that the loop need to reset if both float switch become dry and wait for the bottom switch wet again. Could anyone please help and guide me which part im missing? Im open for any suggestion to improved my code too.. Thank you.

UPDATE:

Im so sorry for the confusing. Actually for this function, below are my requirements.

1. If top float dry and bottom float wet > turn on both peristaltic pump for 10s(or more will change later) and stop.
2. Then, if top float dry and bottom float dry > reset.
3. Wait for next top float dry and bottom float wet.

Im really sorry again for the confusing. Kinda messed up with the logic previously.

I have an embedded board which sends information from IMU sensors along with a timestamp received from a RTC Module.

The Timestamps are obtained from Adafruit's RTClib

The code has a function called unixtime() which provides me timestamps as follows:

I have an Arduino on an Adafruit feather mo. I am attempting to store data on an adalogger. The idea is simple. I have a potentiometer and I wish to write data from that potentiometer to an SD card. I can create, open, and close a CSV file, but I cannot write data from the potentiometer to the CSV file on the SD card.

Very rarely, I can get data from the sensor to write into the CSV file. However, I am not convinced this is a hardware issue, because I can see all the data in COM using Serial.println() just like I want from the potentiometer. It just won't write to the SD card. Can someone point out what I could be going wrong?

This code works: