It's a "simple" project but with some challenges and functions.
The only thing that is needed is the programming, so no hardware!
The hardware is as following:
- Arduino Nano 3 board
- 2/4 buttons
- 1 input signal
- 2 relay boards
- 2 displays TM1637
Option: LED-strip WS8212/WS2812
The following functions are needed:
As the title describes its a time countdown on 2 displays (same time on both displays) with 2 options of time by a press of 1 or 2 buttons : 2.40 minutes (160 seconds) and 3 minutes (180 seconds). The displays are showing ”02:40” or “03:00” before start.
When the “start” button is pressed or via the input signal, the countdown is started.
When the count down is at 10 seconds left, 1 relay is pulsing every second until the countdown is reached and when 0 the relay is on until the same input is triggered or the “stop” button is pressed. The other relay is triggered af 5 seconds after the countdown reached 0 seconds if the input of “stop” button is not pressed. After one of those is triggered the countdown is re-set to the set time (180 or 210 seconds).
The following needs to be adjustable:
- Both the start times (180/210 seconds)
- The relay pulse start time (at how many seconds the relay starts to pulse)
- The amount of pulses per second for the relay
- When the second relay is trigged (after how many seconds the relay is on when the countdown is 0)
When starting up the Arduino the amount of LED is counted , so the length doesn’t matter when the countdown is active or defined in the config. When powering up the LED strip has a starting color.
Every time a second is passed “X” amount of LED is switched to the second color and when the last 10 seconds the LED strip needs to flash until the counter is 0. And after the “stop” button is pressed or the input is trigged the led is set to the starting color.
The following needs to by set in the config:
- Starting color
- Second color
- The amount of seconds that the strip flashes until 0
And the wiring diagram.
20 freelances font une offre moyenne de 184 € pour ce travail
Best Circuit Design Expert at your doorstep! Dear Client, We can provide a time countdown on 2 displays (same time on both displays) with 2 options of time by a press of 1 or 2 buttons as per your requirements. We c Plus
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Hi there, I'm bidding on your project "Countdown with 2 displays and some" Being a professional electrical engineer, I can do this project for you. please leave a message on my chat so we can discuss the budget and de Plus
Thanks for Freelancer which gives chance to meet you. I hope you are good. I have read your description carefully and understand everything. I have 8 year experience on Arduino and know all principles. I'm mixed of sc Plus
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An easytask tpo be accomplished, Its me Imad, have done 200+ projects regarding arduino, thanx for posting the job........................
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Hi...! We are an electrical engineering company, we have lots of experience in the design of electrical power, control, and digital electronics systems. We can most certainly participate in this project! Among the del Plus
Hello, when viewing your job details, it’s really jumped out at me. As you have mentioned some of the parameters need to be configured i.e. both start time and others, so are they configured as run time configurable? Plus
A very basic project which only requires higher c++ programming algorithm. Can be done in 3 days.
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Dear Prospective Client, Thank you for the opportunity to bid on your project. It sounds interesting and I believe I can help you. I have 30 years of experience in the Electronic Design & Development field, including Plus
Hello , I am experience electronic engineer. i have 3 years arduino experience i have made many projects on arduino. this is pretty simple for me. I also worked on ws2811, ws2812. I can do this work i hope you will gi Plus