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New Blue PCBs
02/01/2020 at 20:17 • 0 commentsI ordered another lot of 5 PCBs, again using JLCPCB as the supplier. The total cost, including shipping was CAD $15.00 (USD $11.33). This time the PCBs were manufactured with blue solder mask rather than black. Order to delivery at my home was about 2 weeks.
For version 2 of the stripboard I made two improvements:
1. On the top side, a grid was added to make it easier to count holes
2. On the bottom side, white dots were added to the silkscreen indicating the direction of the stripboard tracks. The dots are still a bit hard to see. Using solid lines between the holes would be better... something for version 3.
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CPU board
08/14/2019 at 03:27 • 0 commentsA stripboard layout was done for the Street Sense CPU board. This board is mainly just to interface various PCB modules, switches, display, etc to the ESP32. This layout is dense and took a lot of time to figure out. Maybe not such a good stripboard candidate, but it all fit (barely)
Here is the schematic and PCB layout
Front side
Back side
The plated through hole construction of the stripboard PCBs offers the option of placing components on both the front and back sides. I located three connectors on the back side which provides an elegant means for connecting to PCBs and a LiPo battery housed inside the enclosure
Board populated with Lolin D32 and DS3231 RTC module