The schematics are exactly the same with which I made the LibreServo v2 PCBs but with the texts corrected in position so they read better. In previous posts as you can read in the article of the first LibreServo test board and in the conclusions of the...
Next came making the main PCBTop after etching and tinningTop after applying solder maskBottom after applying solder maskTop after cutting to sizeBottom after cutting to size
3D Top - with components (computer generated) 3D Top - without components (computer generated)3D Back - with components (computer generated)Filled TopFilled BackUnfilled TopUnfilled BackYou get the KiCad files from git repo here.2 Layer design, while...
After thinking, it will be preferable to remove the 1V8 and 2V8 from the bottom PCB. They are used by the RPi CM, and there is risk if IME perturbations.The alternative is that the PCB BOTTOM provides only filtered 3V3 and 5V0. The DC/DC 1V8 and 2V5...
I assembled the following parts of the PCB TOP:- the SAME70-M1/M2 circuits- the headers of the xBees- the connector for front sens- the RPi Cams connectors- the Raspberry Pi compute module socket and circuit- the radio Si4464
First panels are completed and can go online. Here are the first two assembled PCBs, one for development and one for actual usage in the kitchen.As you can see, there is a lot of empty space in the box, but I will design the whole thing again for the...
Required tools: Stencil.Solder paste. Applying the paste. For this operation, I have designed a PCB fixture with a mount for interchangeable stencils. Setting the PCB and aligning the stencil after that apply some duct tape. After that firmly apply the...
To make the prototypes easier to fit in the box I have used a trick: I have placed a proper sized hole into the PCB under the buttons and the LEDs. That way I can install the PCB in the box and use it as a template to drill the holes. It takes less than...
The idea was the once I finalized my design, I would order the PCBs from OSH Park.Given the size was 1 inch by 1 inch, it was the most cost effective as I was $5 shipped to Australia.Top layer of my PCB, I have hid the top overlay.Bottom layer of the...
The design is 2 layer, with top layer tracks in red and bottom layer in blue. Board outline is green and copper pour is red. At the bottom is mounting for 2 MCUs with the same footprint as an Arduino Mega / Due. At present, bottom right is inhabited...