Assignment VI Electronics design

INTRODUCTION VIDEO HOW TO MAKE A HELLO BOARD

IMAGE 1	EXPLANATION 1	IMAGE 2	EXPLANATION 2
	EAGLE Eagle is a program that provides a quality PCB design. We´ll use a schematic editor and we´ll load the fablab library and the Niel´s library to have a number of neccessary components.		Open the Eagle Window. Download the fab libraries from the folder.
	Then push the "File" button -> "NEW" -> "Schematic" and start working If you already have any project saved in Eagle folder, "OPEN" it from the folder. So, what we are going to do is to search for all neccessary components, that consist of:		Microcontroller Explanation LED of 1.8 V Capacitor Resistance 1k and 10k Resonator or a Crystal FTDI (connector) AVRISPSMD A button
	Let´s start! Open "Edit" -> "Add" -> Look at the names of libraries you downloaded and select one of them. First of all, look for the microcontroller "ATTINY44", insert it.		Then, search for the AVRISP in 01_fab
	DIODES from 01_fab library		So, when you found all the components (I wasted like an hour to find all of them) just draw "NET" lines, not "WIRE" lines. Every connection has an extention as net line.
	Then, you are to give them a name. The scheme will help you. Select an option "move" on the left side on the screen. Then select the line you want to name. Select "name" option.		After that, write the name of PIN you will connect with resistance with LED, and the button.
	To give the name to a PIN push "label" it.		The PIN´s name will appear
	Mark all the Pins and connections. And then select "schematic" on the top of control menu. It has a symbol of "sockets".		Here is the result. All the connections are created correctly. What we´re going to do now is to organize them to make an electric structure.
	The DISPLAY options permit you to see where are all the components situated. Select "place", "name" and "origin" options.		Push "NONE" and select "TOP", "BOTTOM" and "DIMENTIONS". Push "OK". We block all the electronic components to be able to export the image for Roland Modela. We need only pins and vias of the circuit.
	Here we go! Push "FILE", "EXPORT", "IMAGE". Then select "MONOCHROME", 600 dpi, and the folder to save in.		I exported the image. Watch the Video to make sure you understood the process. NB: This border you can eliminate deselecting "dimentions" in the"display" option. If you want the different border you can eliminate this white square. Chose any geometrical form: circle, rectangular, a line.

WATCH THE VIDEO MODELA SETTING THE CUTTING POINT

Be careful! When you push down the drill, stop when you are close to the surface. Then push every second the button "Down" till the drill touches the surface and mills it a little bit. All you´ve got to see is a little bit of copper dust.	Locate the copper board on the acrilic base. The base has squares 1x1cm. Use a thin two-faced tape. Before you cut an electronic board, first make sure that all the settings are OK, as I described in previous assignments. Then Press "View" button situated on the MODELA on the right, and then press "MOVE" on the program screen. After that push "DOWN" button on the MODELA till the drill touches the surface.		Now it´s time to organize all electronic elements. I recommend you to write down all the components, for each board and to put any adhesive tape (two-faced). Place your components there. It helps you not to loose them.
	First I did not set the right resolution. That´s why I obtained a wrong result. Always use export option to make it correctly. I´ve cut another electronic Hello_Board! Now its dimentions are OK.		Now I´ve got to solder it. As usually I´ll use a solder and a solder paste. When you first put the paste and then heat the surface, the solder metal will be well distributed where you need. It´s a simple technique to do a clean work.
	Here it is!		With the help of Voltimeter I checked the conductivity of my board. It´s aproved!

Be careful! When you push down the drill, stop when you are close to the surface. Then push every second the button "Down" till the drill touches the surface and mills it a little bit. All you´ve got to see is a little bit of copper dust.

Locate the copper board on the acrilic base. The base has squares 1x1cm. Use a thin two-faced tape. Before you cut an electronic board, first make sure that all the settings are OK, as I described in previous assignments.

Then Press "View" button situated on the MODELA on the right, and then press "MOVE" on the program screen. After that push "DOWN" button on the MODELA till the drill touches the surface.

Now it´s time to organize all electronic elements. I recommend you to write down all the components, for each board and to put any adhesive tape (two-faced). Place your components there. It helps you not to loose them.

First I did not set the right resolution. That´s why I obtained a wrong result. Always use export option to make it correctly.

I´ve cut another electronic Hello_Board! Now its dimentions are OK.

Now I´ve got to solder it. As usually I´ll use a solder and a solder paste. When you first put the paste and then heat the surface, the solder metal will be well distributed where you need. It´s a simple technique to do a clean work.

Here it is!

With the help of Voltimeter I checked the conductivity of my board. It´s aproved!

VIDEO VOLTIMETER

How to use the voltimeter? On the left you´ve got ampher measuring. At this way you measure the "I" bulk flow of the electrons. On the right - volts. You measure the voltage.