How to connect a NE555N DIP8 (timer) with an arduino that will control the Modul motor driver L298N v2 which is connected to an electric motor.
Where do I need to insert the pins in the arduino and the timer and the L298N driver? And how to write the program?

 

Welcome to AAC.
Why are you using a 555 as a timer when the Arduino could be programmed to do the timing?

 

I don't use Arduino, but have an idea about its function, the question I have if using this, why would you need a NE555?

 

I DO use Arduinos a lot. I have a similar question, if you’re using a 555, what’s the Arduino doing?

 

Welcome to AAC.
Why are you using a 555 as a timer when the Arduino could be programmed to do the timing?

Because the electric motor must rotate to the right at 7 a.m in the morning and to the left at 7:00 p.m

 

The clock (Crystal controlled.) on the Arduino will be more accurate than a 555 for the timing. So your answer in post #5 does not make sense.

Les.

 

Because the electric motor must rotate to the right at 7 a.m in the morning and to the left at 7:00 p.m

And the 555 is going to do that ?

 

A '555 can only handle delays of a few seconds with any degree of repeatability and accuracy, so wouldn't be suitable for time-of-day timing.

 

…What Les Jones and Alec_t said!

I repeat. An Arduino (Nano or Uno) and an RC Servo is all you need for better timing than a 555

 

Not sure about the Arduino. I generally use a PIC microcontroller. A lot of the PIC's come with built in 'Real Time Clocks'. I would imagine the Arduino would as well and probably has code examples. I would recommend using that, especially if you want to do something at specific times of the day. The 555 could never keep time good enough, not to mention it cannot handle Day Light Savings Time for you where an RTC can.

 

Because the electric motor must rotate to the right at 7 a.m in the morning and to the left at 7:00 p.m

Motors don't turn left or right. They do rotate clockwise and counter clockwise. Depending on the motor going from CW to CCW may not be a good idea. You may want a brief stop.

Because the electric motor must rotate to the right at 7 a.m in the morning and to the left at 7:00 p.m

What is the plan for knowing what time it is?

What exactly are you looking to do? Exactly means in detail. What is the 555, L298 and the Arduino supposed to be doing? The L298 is an old solution for a motor drive. It does not use MOSFET technology. Any plan for motor speed?

How about you post your version of a hand drawn schematic or at least a block diagram?

Ron

 

Given the additional requirement of specific times during the day, I’d add a DS3231 RTC module for an Arduino to the Arduino and RC servo. Which would be a much better solution than using a 555

Here’s an article showing how to use the RTC module with an Arduino.

 

Is this yet another chicken-coop door project?

 

Is this yet another chicken-coop door project?

Although it is posted under 'Homework-Help'?

 

Things get posted in all sorts of inappropriate fora, but the design (if not actual build) of a coop door operating arrangement would be suitable as a school project. The 'turn right' and 'turn left' at 7am and 7pm are clues as to the end use.

 

The chicken coop door projects normally open at dawn and close at dusk. I once baby sat my neighbors chickens and I let them out at dawn and let them back in the coop at dusk. Open door or not they would not go back in their house till dusk. Dawns first light and dusk do not happen automatically on a 12 hour interval.

On another note I worked with the fin drive motors on the tomahawk cruise missile and burn in consisted of running the motors forward and reverse at 12 hour intervals for 72 hours as part of acceptance criteria. About a dozen motors at a time in a test bed.

I have no idea where this is going.

Ron

 

Not sure about the Arduino. I generally use a PIC microcontroller. A lot of the PIC's come with built in 'Real Time Clocks'. I would imagine the Arduino would as well and probably has code examples. I would recommend using that, especially if you want to do something at specific times of the day. The 555 could never keep time good enough, not to mention it cannot handle Day Light Savings Time for you where an RTC can.

An Arduino does not have a built-in RTC. It does have several timing functions. If you need a RTC (like determining when 7am and 7pm occurs), there are many inexpensive RTC modules available with libraries for setting and reading the time with simple functions within the Arduino code. I provided a link to an appropriate DS3231 based RTC.

 

Or you can use a timer interrupt and a few lines of code to count 12 hour intervals.

 

Or you can use a timer interrupt and a few lines of code to count 12 hour intervals.

The problem that may exist is setting the number of interrupts before the next trigger time. Let’s say we start the system at 13:27:53. How many interrupts will occur before 7pm? How are we going to input that initial count into the microprocessor? Use of an RTC does not require setting initial conditions.

 

One could also use a GPS module instead of RTC, to get the right time. Just need to use the serial port and parse the gps data.