PCB Assembly and REV-B of the board

viernes, 5 de mayo de 2017 0 Comentarios, Dejar un Comentario

The PCBs finally arrive, and it is time to test if anything went wrong, or if we need to make the Rev-B of the board, It almost works as spect it but i decided to make some changes in the board to increase the specs. This the board with all the components on their respective places.


REV-A Front face


REV-B Back Face


The new specs will be that we can light the PBBW in more tones that just the Red, Green and Blue LEDs one at a time as I put a single resistor in the common anode of the RGB LED, in that configuration just one color of each RGB LED can be turn on at the same time, but if we add a resistor for each LED we could make some color combinations, like a nice rainbow contained in our device. I have also change the form factor of the Buzzer, now it will be a SMT.

So let me show you how the new schematic looks like:


SCHEMATICS REVB

And a 3D look of the board before send it to fabrication:


So now we are ready to send the GERBER Files for fabrication, and in a week from now you will see working.


OCDC - Electronic Design

martes, 2 de mayo de 2017 0 Comentarios, Dejar un Comentario
So the electronic part of the project its going to be very simple, but a good look.
This circuit would drive the heater element by reading a temperature sensor and adjusting the heater activation accordingly, but the special effects, the visual and good look of this will be 8 RGB LEDs with a shape of a ring like in the image of the concept design idea, this board should also be capable of charging the battery and respond to a human interface, in this case 3 push-buttons.

This is the schematic i made for this task.
Portable Baby Bottle Warmer - Schematic REV-A

In order for this board to look nice i made it round, and its time to get it manufacture. 


PCB - REV A

And this is the 3D model of it:


PCB - Front View


PCB - Back View


PBBW Assembly View


PBBW Explode View

 I have already think of some improvement I can make to the project, so this will not be the final version. Wait for more...