Output Devices

In this week my task was to print board and program it.I have selected DC motor board.The reason behind it that, I will use same board for my project output.I will use that board for DC motor start when grey water's oxygen level decreases and vice versa.

Now, without problem I was not leading towards assignment finishing.I was print that board and soldered its components.But some components are not available in our lab, like regulator and IC'4953.So,I decided that design new relay board and use for my project purpose.

So, I learn how to program microcontroller and how to understand dada sheet.Also this information is important during understanding the motors.

As I mentioned above IC 4953 and regulator is still remaining to solder.

So,I never found that components.Now I decide that make relay circuit which is help to start DC motor and stop the same.

I use EAGLE software for PCB designing.I followed same steps as earlier assignment.This is schematic diagram of relay circuit.

I was route that board by manually.And milled it on modella machine.After soldering board looks like this..

But size of this board is 5 cm*6cm and number of components soldered was 3! So, During designing I forget to give size in mm. After that I milled another board for relay circuit. In this circuit I was adding Attiny 45 microcontroller with relay switch.

After finishing my routing I was exporting my eagle file into the png file. I Milled that board by using modella machine. As I mentioned earlier assignment I was using 1/64 bit for milling and 1/32 for cutting the board.

In this board I soldered Attiny 45 microntroller, relay switch (5v==12v), 10 k resister, transister, diode, and connector pins.

After soldering of relay board it looks like this..I read data sheet before programming. After that I found pin out of Attiny 45.

I was testing wiper motor using multimeter. I checked how much amount of current required for the wiper motor. So, we get 5 amp current required for no load condition.

Then , I moved towards the relay programming. Mr. Suhas Labade(who is instructor of my fab lab) helps me lots during programming.

I was using ardiuno software for programming the relay board. We wrote program for wiper motor(12v DC). We declare motor pins which by using Attiny 45 data sheet.

In this program I declare PB2 pin as my output pin. Which is connected to the motor terminals. In this program I wrote 2000 sec delay for the signal. I was using my relay board for functioning. Here relay needs 5v supply, so I was giving that by arduino board.

I did similar steps which is mentioned in embedded programming. Firstly, I load program in my relay board by using ardiuno. Then I give supply to the relay board through ardiuno board. Also I used SMPS 12v,10amp. Which can give 6 amp current for the motor by using 220v. Above I mentioned connections for motor and ardiuno too.

click here for working video
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