How to make a development board from scratch? Illustrated and illustrated, step by step operation for you to see.

Some time ago, Mr. Peng made a set of boards for the Internet of things ,

Have the ability to record the Internet of things comprehensive project experiment .

use TI The company's CC2530 chip

Many friends who have not touched hardware design are curious ,

Ask me how a circuit board is made ,

This article is illustrated with pictures and texts , Let me show you the process of making my development board in detail .

1. Draw a circuit diagram

Circuit diagram design software ： AD

Circuit diagram 【2 layer 】：

You can also use Lichuang EDA open ：

I prefer Lichuang EDA Of 3D Preview effect ：

positive ：

Back ：

2. Place an order

After the circuit diagram is designed , Looking for manufacturers to produce PCB plate , And patches ,

Mr. Peng has a good brother and his own factory ,

Not only do I have some materials , It can also be pasted ,

So I chose to place an order in jialichuang ,

production PCB Board and then paste it by yourself ,

【 If the quantity is not great , It is good to choose jialichuang , Take any order , Delivery is also very fast 】

Place of order ：

Upload PCB：

Fill in the details ：

The choice of the color of the bottom plate ,

It really made me a straight man in engineering for a long time ,

So the circle of friends asked my fan friends ,

Opinions poured in ：

Well thought out ,

Finally, I chose jialichuang purple ,

A very sexy color ！

In today's society , Need to know

Beauty is the first productivity ！

It doesn't matter what else the board is ,

Good looks must come first .

3. Receive backplane

The packing is very tight

Unpacking photos 【 In groups of four , Wrong chamfer , The color is also full , Overall satisfaction 】：

4. Solder paste

This step is to use a machine to give pcb Solder paste on the board ,

When the chip mounter grabs the components from the material conveyor belt and pastes them at the corresponding position ,

The solder paste can adsorb the corresponding components ,

And then pass by 200 Bake in a centigrade oven ,

The solder paste will melt ,

After cooling, finally realize the welding of components

The steel mesh brushed with solder paste is produced by jialichuang pcb The plate is specially produced for the bottom plate ,

The gap of the steel net is strictly corresponding to the gap of the bottom plate ,

Align and press the circuit board ,

Apply solder paste ,

The brush on it will be like pancakes ,

Press the solder paste into the corresponding component position of the board through the gap

A set of circuit boards should have a steel mesh

5. Input the coordinates of each component

The mounter should accurately paste components ,

The names and coordinates of all components on the board must be input to the mounter ,

The left screen shows the camera image used by the mounter to set the coordinates of components ,

6. Add material

Put the components that need to be attached to the bottom board into Feida ,

Components are pasted on paper tape when they leave the factory ,

The paper tape is rolled into discs

7. Patch

The bottom plate after the solder paste is brushed is transferred to the mounter through the conveyor ,

The SMT machine can perform SMT according to the preset coordinate information and component information .

8. bake

Patch ok pcb plate , You can put it into a special oven , To bake

From the oven pcb plate ,

It's still hot ！

9. Baked pcb plate

Red has passed the exam pcb The solder paste on the board has melted

It is very strong after cooling ,

10. Welding insert

A friend's patch machine can't paste too big plug-ins ,

The first batch only did 75 Set board ,

So choose manual welding ,

Fortunately, there are not many components
Don't doubt your eyes and your judgment ,

This is a swing shot ,

Otherwise, my hands would have been burnt ！

11. The final product

After welding the plug-in , This is the final product ！

12. About the course

1） The objectives of this course

adopt web Browser access server , To realize the login 、 register 、 Database operation 、 Remote control hardware 、 Collect environmental information 、 Remote monitoring 、 Taking pictures 、 Picture display and other functions .
Turn the microcontroller on 、linux System programming 、 Multi process 、 Multithreading 、 Concurrent 、html、 camera 、 Database and other knowledge points are integrated into a project .

2） What group is suitable for this course ？

1. Students who are in urgent need of embedded project experience but lack practical ability 、 graduate ;
2. Want to switch to embedded Linux The engineer ;
3. I want to expand my knowledge, but I am busy 、 Time - strapped Engineers ;
4. Need to take students to project training 、 College Teachers of graduation design

There are already 75 Students pay for this course ：

The atmosphere in the group is also quite active ,

The students who came in were real ,

Various technical problems every day ,

These students should have no problem with their autumn moves ,

There will be no pressure for the old railway who has changed careers to find the job they want ！

3） Current progress

At present, the course has been recorded 36 period , It is expected that there will be more 30+.

If you don't work much overtime ,7 The recording should be completed in the middle of the month .

Want to sign up , The background to reply ：

Wireless sensor networks