Based on 365-day calendar year. counters are 00:00. Arduino based RPM counter with a new and faster algorithm. Using Arduino LEDs and Multiplexing. Arduino Cloud. 1 Answer. For example, 3780. No complicated setup. Now load up the matching sketch for your RTC. September 2023 to November 2023. What I need ? I have timer counting up with some frequency. Arduino's Uptime History. Simple, not accurate uptime counter based on millis(). SWRST = 1; // reset timer. High end counters use sophisticated hardware for counting process. Alerting;. But first uptime var must be updated and then at second request printed. TC3->CTRLA. Trying to understand where i went wrong. zip (33689Bytes) ArduinoTimer101. You can use one of the PWM pins on Arduino to output a PWM signal. I would like to display the time between start and stop on the serial monitor as well. There are several ways that might be done: decrement a counter in the loop and exit if it goes to zero (or if the sound is detected) test a flag (volatile byte) in the loop, which gets set by a timer interrrupt. Readme; Installation. millis() is incremented (for 16 MHz AVR chips and some others) every 1. It was based on the example provided by the time. I think also timer0 and timer2 have external clock/counter inputs. I want the servo to keep moving in the direction set according to the button until the button is released. When using a separate power supply, the board will reset sporadically and serial communication will fail after a few minutes. This is read by homeassistant by obtaining a JSON request from the arduino and then parsing the response into REST sensor entities in home assistant as follows: ESP8266TimerInterrupt. Arduino Stack Exchange is a question and answer site for developers of open-source hardware and software that is compatible with Arduino. Fifth pin to digital pin 6. Arduino uses the Wiring language, which is actually C++. On most boards, time. Then, if you want to know if One Second has elapsed, get the new value of millis and subtract this saved value from it and see if it is greater than 1000. Free Running Counter. 3. Nothing Very Interesting here, more for newbies learning about interfacing hardware. you will lose your time if the system power downs or mcu resets. I want to make a counter in Arduino. first time poster so please be gentle! I'm currently designing my first Arduino project; it will be a combination dashboard/display and data logger for my drag car. Here are few pointers about using interrupts in the ESP8266, as well as in any Arduino based system. I'd like to use Timer1 to measure the time between rising edges of two input signals. The same TC Module can. AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. LOW is 0, HIGH is 1. Device Control. the lcd is to display everything obviusly. Would you please write a code to convert these minute to be displayed in Hours, Minutes, Seconds. I want to calculate seconds since boot. read_i2c_block_data (i2c_addr, register, length) or. zip (2802Bytes) Update 07/24/2013 04/24/2013 Example 3 has been updated to work with Arduino v1. 3. It now supports 16 ISR-based timers, while consuming only 1 Hardware Timer. I am trying to use the SimpleTimer library, but cant get it to work. UPTIME: When Blynk app connects to NodeMCU over the internet, it requests uptime every second . mktime(t: struct_time) → int. the number of sessions presently running on the system. In loop () check each time through whether the current value of millis () minus the start time is greater than or equal to 1000. A cycle is counted as one cycle when from the mold close --> open --> close. It also displays real-time weather conditions with temperature and humidity indications as add-ons. An extended version of the RPM counter project with software debouncing available from the author: martinius96@gmail. D4 —> Arduino digital pin 4. Comments. I'm trying to create a script to run on a Raspberry Pi Pico that takes two time variables time1 = utime. I am trying to count pulses from a waveform generator using an Arduino Uno. ESP32, Machine Learning. 38. This library enables you to use Interrupt from Hardware Timers on an ESP8266-based board. This tutorial will give you more in-depth information about Arduino Timers ( in Counter Mode). Divide CPU frequency through the chosen pre-scaler (16000000 / 256 = 62500) 4. But in the web the uptime goes to the name’s place. Subtracting now gives us: // millis () - startTime = elapsed interval 0 - 4294917296 = 50000 (0xC350)Today I am going to make a UP/DOWN counter using Arduino. Hi There, I am trying to make a count up timer with an Arduino UNO, that would start counting at the pressing of the button and stop when you press the button again. Example 2: Device Uptime Custom Formatting. Add a comment. Mainly because we need to be aware of any problems making it reset and know that any readouts for totals [ie water usage]. a Button (Connected to pin 4) the time on the display will increase by 1second each time, once you set your time, press the other button to start the countdown. The Arduino already has the millis function counting. . For example, if it sends 1111110000011111100000 (sequences of '0' is when the sensor comes across the strip), the program should be able to detect a count of 2 (i. Hi, I would like some help/tips on how to count multiple (sensor) pulses. Ok, so I did some tests with the code, checking when I was missing some conversions depending on the timer frequency and the prescaler value. Timer1 (16 bits) is used for functions like delay() and millis() and for PWM output on pins 5 and 6. Arduino Uno. // print current arduino "uptime" on the serial port 39. A project log for Hacking the way to growing food. The way the delay () function works is pretty simple. Timers interval is very long. Won’t slow down the computer. Uptime Counter. Circuit Setup. timeClient. 5- 16 330 hom resistors. Asking for help, clarification, or responding to other answers. Even though it is not an asynch counter, it should still be useable if input freq is reasonably lower that the system clockfreq. I do this program for it. Arduino Countdown Timer. Creating a timer using a Real Time Clock with. The microcontroller board is equipped with sets of digital and analog input/output (I/O) pins that may be interfaced to various expansion boards (shields) and other circuits. Updates to the Acceptable Use. It’s going to be considerably more involved on the analog side. A counter is said to be free-running if it contains all possible states in the counter loop. The tick count is incremented on each tick interrupt. Provides use of the RTC peripheral in 32bit counter mode. This is an Arduino based project that implements an inexpensive, reliable, race game controller that can be used for timed. Get the device uptime in years, months, days, hours, minutes, seconds, milliseconds, total days, and total seconds. 2. Watch Demo Video. Arduino digitalRead () only ever returns 0 or 1. The other solution is to use the internal pull-up resistor, which is what the INPUT_PULLUP is for, but then you must connect the switches to the ground and rewrite your code so that it looks for a high to low transition. It’s going to be considerably more involved on the analog side. Checking SRam Ussage Nothing Very Interesting here, more for newbies learning about interfacing hardware. Step 3: Arduino Sketch. Second pin to digital pin 9. Thus, you should think of millis() as being good to within ±2 ms. So [Todd] has set out to build an Arduino frequency counter for a Kenwood TS-520S HF ham radio. 2,332 13 27. You can set it to 1024 for example so every 1024th time PB0 is triggered (or what ever the correct term is, it has been a while since I dealt with MCUs) the counter is incremented by 1. And for another 3 readings the values keep increasing even though there is no pressure on it. Uptime CounterIt is useful to have an uptime counter on the arduino so we are aware of any. Good morning, I am currently embarking on a project to control a heater using 2 push buttons, 1 to increase the heat and 1 to decrease the heat. h> Servo myservo; // create servo object to control a servo // CONSTANTS // PINS const int crServo = 12; // sets pin 12 as servo const int buttonPinCW = 2; // sets pin 2. Involt works like bridge between software and hardware so the communication with device is managed automatically but it requires to write code from both sides. For the Adafruit Datalogger shield rev B open up Examples->RTClib->pcf8523. RayLivingston November 14, 2017, 10:08pm 6. that the counter cannot count 2^16 counts. This counter increments every clock cycle – which happens (in standard Arduino and compatibles) at a clock speed of 16 Mhz. For example , i tryed to print to the website an uptime counter , and a name tagged to an rfid , i have function getData() for the name and the uptime too. Mainly because we need to be aware of any problems making it reset and know that any readouts for totals [ie water usage] are not a true representation. The whole message is then 50-bit long on the serial line. The project is a real-time clock and allows setting alarms, timers and running stopwatch. When the modulus is reached, the counter goes to 0 on the next clock. 50014 * counter / 2000; to. by Khaled Magdy In this tutorial, we’ll discuss Arduino Counter Timer Mode from the very basic concepts all the way to implementing Arduino Counter Timer Mode applications. The output of the counter goes to “Width. Step 1: Build the Hardware. Timer/Counter (TC) Module is a "Programmable Electronic Circuit" with ATmega328P MCU, which can be used as Timer to create some fixed amount of time like a Stop Watch. The Arduino Countdown Timer is a fun weekend project for beginners who wants to move on to something slightly more advanced. 37A walkthrough of how to write some basic Arduino code for a counter. The parts list. Timers and Counters are the same. On an ATmega328P (Arduino Uno, Nano, etc. Programming and setting up is accessed through any standard web browser. build a simple arduino lcd counter using simple components such as push buttons and LCD. 6) Sharing Your Dashboards. Step 2: Overview of the Arduino Timers for Signal Generation. Get the device uptime in years, months, days, hours, minutes, seconds, milliseconds, total days, and total seconds. GMT +8 = 28800. google for examples on how to use the SDK defined register names. The uptime utility displays a one line summary of the following: the current time. You would use it as a Counter, feeding each square wave to one Counter input pin. Every Arduino core I know of has a function to read the elapsed time since startup, and that's millis(). Can someone help me with my logic here, I'm not getting something. 16x2 LCD. Hi folks, Im kinda new to this and hoping someone can help me. COMPLETELY SIMPLE! Just install and run. 1 /* 2 This program turns on and off a LED on pin 13 each 1 second using an internal timer 3 */ 4 5 int timer = 0; 6 bool state = 0; 7 void setup (). Upload it to your Arduino with the datalogger shield on!The return value for millis() is of type unsigned long, logic errors may occur if a programmer tries to do arithmetic with smaller data types such as int. It is useful to have an uptime counter on the arduino so we are aware of any recent resets. If you know a minimum voltage level then you can use the analog comparator to get an interrupt but that is something you’ll have to set up at the register level. Hi, i am new to arduino projects. 1. Forum 2005-2010 (read only) General Exhibition. Simple, not acc. RTCDue: Use for the RTC inside the SAM3X8E from the Arduino DUE: RTC RV-3028-C7 Arduino Library: A library to drive the RV-3028-C7 extremely precise, extremely low power, real-time clock: RTCTimer: An Arduino library to easily perform scheduled tasks. They operate as a direct replacement for standard rotary servos. The range will need to be between 10hz and 25khz. A counter can also carry out an operation a specific number of times. Hello all, I have created the uptime () function to show human readable Arduino uptime based on millis () counter. Here are the counter mode clock options for the least significant 3 bits in the TCCRxB register (as stated in the datasheet). My goal is to count the cycle and cycle time of each cycle. Interruptions, the Arduino way . Uptime Counter. void uptime (char *ret_clk) { byte days = 0; byte hours = 0; byte minutes = 0; byte seconds = 0; int sec2minutes = 60; int sec2hours = (sec2minutes * 60); int sec2days = (sec2hours * 24); unsigned long time_delta = millis () / 1000UL; days = (int) (time_delta / sec2days); hours = (int) ( (time_delta - days * sec2days) / sec2hours); minutes. The micros () function counts in microseconds, which is a lot smaller than milliseconds, and it repeats every 70 minutes. This library is compatible with all architectures so you should be able to use it on all the Arduino boards. Full code in attachment. are you familiar with. I am using an Arduino Uno and 5641AS digit display (so common cathode). You'll be better off to avoid using Serial. Problems I see: I read arduino's 1000 millis is not actually 1 second. There isn’t an arduino magic function to do that for you. I'd like it to only count once while in that range before R2 becomes greater than 200. It now supports 16 ISR-based timers, while consuming only 1 Hardware Timer. 1 x Arduino Uno. Step 3: Connecting Remaining Pins: The remaining pin of the connection is as follows: TOP pins (from left side) First pin to digital pin 8. I am doing a pretty simple arduino project that uses a Parallax Ping Ultrasonic Sensor to increment a counter when an object moves past the desired distance. “phase-correct” PWM at 490 Hz on pins 9 and 10 (PB1 and PB2)I have wanted to build a people counter sensor for a while now an after seeing People counter demo on youtube I ordered a couple of VL53L1X sensors. In the Arduino library I see wiring. A timer or to be more precise a timer / counter is a piece of hardware builtin the Arduino controller (other controllers have timer hardware, too). This is the BlinkWithoutDelay sketch from the Arduino examples that shows what I want to do: const int ledPin = LED_BUILTIN;// the number of the LED pin // Variables will. This is the second of a multi-part posting on the ESP8266. – Juraj. Counter ini sering kali digunakan dalam. 1 and a supplement to blog 9:Automated Green House Blog:9 - Some Generic Arduino Tricks - SRam - UpTimeHere is an updated uptime counter that makes life a little simplerHeader 1/* This Script is the bare bones needed to Keep a Uptime counter that will survive the 50 day timer rolloverThis will. you can add hours and mins by pressing pins or you can erase timer. Slave reaches 01 and increments their counter to 01. zip examples source. You would use it as a Counter, feeding each square wave to one Counter input pin. The schematic. Device Control. Gunner December 26, 2017, 5:52pm 4. I've came across a problem though with trying to get something to follow a. – Start collaborating and sharing organizational knowledge. Arduino, Machine Learning. So my. It is useful to have an uptime counter on the arduino so we are aware of any recent resets. They are −. Here´s the code: #include <LiquidCrystal. The frequency can be. I took a mechatronics course in college so I do have limited experience with microcontrollers and programming, but I am still very inexperienced. RTCDue: Use for the RTC inside the SAM3X8E from the Arduino DUE: RTC RV-3028-C7 Arduino Library: A library to drive the RV-3028-C7 extremely precise, extremely low power, real-time clock: RTCTimer: An Arduino library to easily. Depending on your need, you might need to change that and have an escape from the loops. If ( (control > 100) && (control < 130)) { While (millis () < Time + 30000) //counts to Thirty seconds { While (millis. 1. Checking SRam Ussage Anyone know a way to generate a countdown? I have a custom arduino program that runs on a little display to show me seconds until different events are finished on the unit. Connect the pins of the LCD module with the digital-5 to digital-10 pins of the Arduino as shown above. A timer that will survive a restart of the Arduino is impossbile to implement without external parts. h" void setup () { // connect at 115200 so we can read the uptime fast enough Serial. The delayMicroseconds () function accepts a single integer (or number) argument. Incident update and uptime. Making statements based on opinion; back them up with references or personal experience. ) The point is, every 25 days, the fix drops and never comes back. It also sets up Timer Counter for Control applications TCC0, as a 30MHz, 50% duty cycle PWM output on digital pin D10. Now load up the matching sketch for your RTC. If you know a minimum voltage level then you can use the analog comparator to get an interrupt but that is something you’ll have to set up at the register level. The timer module in counter mode is configured to have an external pin as the clock source with multiple prescaler options. Here is a summary of all this. The code is generated with this tool and modified for our test project requirements. I'm am very new to arduino, so please forgive dumb questions. 1. The counter should still count if button 2 is pressed while button 1 has not been released, and button 3 should also be able to increase the counter even if button 2 and button 1 are still pressed. I'm new to Micropython and microcontrollers in general. drawString (0,0, "Counter: " + String (counter)); Next, in order to send the actual content to be drawn on the display, we call the display method on our object. Type. Automatic Controll for switching light ON/Off with the capability to interrupt the process and manually force it on or off. millis() rolls over after 50 days so 71 // we are using our own millisecond counter which we can reset at 72 // the end of each day 73 TCCR0A = (1 << WGM01); //Set the CTC mode Compare time and trigger interrupt. virtualWrite (V4, value); That displays milliseconds. It's all only in thin air and on paper yet, nothing has been constructed or coded (waiting for hardware to get here!). This post (and the video found after the break) doesn’t cover the entire project. The counting simply repeats for as long as the timer is enabled. The only documentation I could find on the smbus module was here. Last Updated [16/01/2021]1. 220R Resistor. So, in this tutorial, we will check how to configure the timer to periodically generate an interrupt and how handle it. For this project you will need: 1- Arduino Uno ($30 from Radio Shack) 2- RTC DS1307 (like $2 from EBay) 3- 2 Shift Registers 74HC595 (like $1 eachh from Ebay) 4- 16 leds. When bit counter reaches 16, disable ext interrupt and set ready line back. begin (9600); pinMode (encoder_a, INPUT_PULLUP); pinMode (encoder_b, INPUT_PULLUP); attachInterrupt. Specifically, use Tn to start the timer counter and IPCn to latch the elapsed time since the rising edge of the Tn input signal. Here is a git repo which should get access to all. using multiple counters on 1 arduino. I am not sure what the cmd means in the module. Alternatively, if you can afford errors (which might accumulate over time, and lead to a huge underestimation), save the value to EEPROM only every n keypresses. P10_LED and I need to display the one-hour countdown on the display module. 1uF capacitor at noninverting terminal pin 2 of the. hi. This counter is incremented and decremented using two Grove button modules. In the bottom left corner of the Nextion display, there’s a window for fonts and pictures. If you want a constant clock, you need to set the duty cycle of the PWM to be 0. g. In the timer interrupt ISR you set the pin LOW (again a PORT write), and then clear the interrupt. long int counter = 0; to get wider variables. In this tutorial you’ll build a web server to control the ESP32 or ESP8266 NodeMCU outputs with a pulse using Arduino IDE. The other two timers — Timer0 and Timer2 are used for PWM output on pins 3, 9, 10, 11. Thanks for contributing an answer to Arduino Stack Exchange! Please be sure to answer the question. The millis () was a quite good to give me back the time since last system. System time can be kept by using either one or both of the hardware timers depending on the application’s purpose and accuracy requirements for system time. I am trying to have a counter with 3 buttons. I'm a Secondary school Technology Teacher and upgrading our programmable control software from P Basic Stamp controllers to Arduino and trying to write a book for the pupils to work through. Mark, I decided to write a new set of functions, based on the Arduino Atmega328 Timer2, and using overflow interrupts, to get precision. Delta_G June 2, 2017, 2:45pm 2. 024 milliseconds, then. Improve this answer. Connecting D10 to A4 allows the pulses to be counted. dwisehart June 5, 2015, 8:10pm 1. There are two workflows for Involt - it depends on project when to start with sketch or HTML code, for this example the first step is editing the Arduino sketch. I'm tasked to make a counter that counts up from zero to 999, all the while having switches S1 and S2. The following are links to worked out examples with normal mode online calculator. I don't supprt using millis () function. Net Uptime Monitor is a simple internet connection monitor that alerts you to connection failures and records their exact time and length. AFAIK counters are not synchronous with the uC clock. 0; to avoid losing precision and range. Connect VCC on sensor to positive rail on breadboard. setTimeOffset (3600); Here are some examples for different timezones: GMT +1 = 3600. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"examples","path":"examples","contentType":"directory"},{"name":"Changelog","path":"Changelog. Floats on most boards are encoded in 30 bits. xTaskGetTickCount () in milliseconds. Using Arduino Programming Questions. A counter can also carry out an operation a specific number of times. counter = ++counter; it should work as expected because counter is incremented before it is used (assigned in this case). timing and delay functions, using the TIMER0_OVF interrupt. Also, what is the best way to learn. 0; to avoid losing precision and range. However, I can't help you with Arduino implementation because I use STM32Cube IDE for that. - Atmega32A Timer Counter Tutorial ExamplesIt seems that on your system they are only 16bit wide (with a maximum value of 32767), not surprising. system February 10, 2015, 9:55pm 1. Haven't used those, have used Timer1 which I've had counting at speeds of up to about 6 MHz. The ATmega2560 in the Arduino MEGA has four 16-bit timers, for example (assuming I can use them all). Now, to redirect the console to serial port, use > symbol. Click the (+) button and select your background image. Checking SRam Ussage Hi guys! I’m actually displaying my System Uptime using millis. This project is ideal to understand the logic of work of a counter by utilizing Arduino code since you have available 4 programs: 1 for 1-digit, 1 for 2-digit, 1 for 3-digit, and other for 4-digit counter with one single 4-digit panel. e. 1. Every now a then it is updated by 2 ms at once in order to compensate for the drift. *) uptime is a link to the w program and was introduced by BSD around 1980. An unofficial place for all things Arduino! Arduino Uptime. 67 min. The issue is that there is no means to figure out how long reset was triggered. Describe what you expect counter to count, and what you see now. To set an Arduino Timer module to operate in counter mode, we’ll use the clock selection bits in the TCCRxB register. ) The point is, every 25 days, the fix drops and never. The frequency counter is better suited to higher frequencies, because you get a higher count. Uptime library for Arduino. e. Can someone help me with my logic here, I'm not getting something. Follow the schematic above to construct your minutes logger. Monitor. IOW, I need position as well as UTC time. Uptime Counter. Digital Pins Usable For Interrupts. TCNT1 = 3036; This should be avoided. open the datasheet and work with timer peripheral registers. I am trying to read data from an Arduino UNO to Raspberry Pi with the python smbus module. Ive been googling this problem for hours and cant figure it out. Uptime Downtime. 2 milliseconds. This number will overflow (go back to zero), after. It’s an 8 bit timer, but we’ll let it count up to 124 only (this means 125 “ticks”). so the long ints for day hour etc may. 2. I am trying to count pulse but the results are showing too large numbers. Ideally I'd like it to be relative like the Uptime. D5 —> Arduino digital pin 6. With the 16 MHz clock frequency of Arduino boards, Timer2 will “tick” with a frequency of 16 MHz / 128 = 125 kHz. h library in your code. It means that the Timer 1 is setup as counter which measures external events. I am working on a small project for measuring input square wave frequency using Arduino, I did it using both timer and hardware interrupts and here is my code:. • In the shaft whose rotation speed is to be measured is fitted with a small magnet using glue gun or electrical tape. Counters are used to count a process, like the number of times a button is pressed. 2. Arduino has the millis () function, but after looking though all the example programs and scouring the internet I couldn't find anything like that for the Pico using C++. Arduino is using all three timers in ATMega328. On the ESP32, this is the APB_CLK clock, clocked at 80 MHz. available ()>0) serIn=Serial. . But what’s often overlooked is that you can share dashboards with anyone you want. DS1302 as a counter/count-up timer. E —> Arduino digital pin 3. 50%. 50014 * counter / 2000. I am using a photo interrupter to count the number of bubbles my homebrewed beer produces per minute during fermentation. This countdown timer consists of 4 buttons using which you can set, start and stop the timer. The ESP8266 appears to have a bug in the WiFi or UDP protocol support, leading to a maximum UDP packet size that can be received being 1024 bytes. This number represents the time (measured in milliseconds). About . Ok, so I did some tests with the code, checking when I was missing some conversions depending on the timer frequency and the prescaler value. Easily read the uptime since device startup, in days, hours, minutes and milliseconds, without the 49 days overflow. I have this RFID reader "Rosslare AY-X12", and it's working with Wiegand 26bit. A relay is a programmable electrical switch, which can be controlled by Arduino or any micro-controller. The Frequency Detector can detect frequency from 38 Hz to 9612 Hz. 1 • Public • Published 5 years ago • uptime arduino time hours seconds + 2 categories; Simple implementation of uptime counter. Updated Uptime Counter . s = millis() / 1000;. Step 3: Conclusion: You Just Dont Need an RTC, Seriously. When the modulus is reached, the counter goes to 0 on the next clock. This doesnt really deserve to be a blog, So it is 9. The Arduino starts form pin 0 and sometimes we can misread while connecting. Hi, The programme i have has been sourced from another forum member after googling the task at hand which is counting the pulses from a slot interrupt counter on a drive shaft. For a 16 MHz Arduino, to get approximately 56 KHz, use a counter overflow value of 286 ( = 55,944 Hz). ReleasesLearn more about Stack Overflow the company, and our products. See Note* in "Uptime. The Arduino Micro shown in the photos is a different hardware version from the one I just purchased (see photo). Step 3: Arduino Sketch. In Arduino Uno it takes 1/16000000 seconds or 62nano seconds to make a. This library is compatible with all architectures so you should be able to use it on all the Arduino boards. 94%. Arduino provides four different time manipulation functions. Add a comment. – Dave X Feb 21, 2016 at 19:39 Add a comment 4 Answers Sorted by: 5 A non-blocking version is often needed as there is often other tasks to be performed during the wait. Synchronization logic makes it possible to count at 42MHz max. From what I see/saw I think the uptime counter simply - at some point near the 500 days of switch uptime - just suddenly reset (not the Switch!). This code will work on uno and mega, it will display the Uptime on the LCD sheild like the one in the image below:Header 1/* This Script is the bare bones needed to Keep a Uptime counter that will survive the 50 day timer rolloverThis will not give a uptime of great accuracy over long periods, but it will let. {"payload":{"allShortcutsEnabled":false,"fileTree":{"atmega328p/Reset-Button-Counter":{"items":[{"name":"library","path":"atmega328p/Reset-Button-Counter/library. The modulus here is a value of 9 and the number of states for the counter is 9+1 or 10. Provide details and share your research! But avoid. 8-bits means 256 values whilst 16-bit means 65536 values for. Count 125 times with a frequency of 125 kHz. Easily read the uptime since device startup, in days, hours, minutes and milliseconds, without the 49 days overflow limitation of the millis () function. This is the inverse function of localtime (). Mainly because we need to be aware of any problems making it reset and know that any readouts for totals [ie water usage]. For a full feature comparison, check the ‘Features’ table in the Arduino Cloud plans page linked above. display.