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As mentioned in part four of the STM series, that development board was sponsored by PCBWay. For this review, they agreed to allow for assembly of two of the boards which is excellent as I can compare their assembly service. Since the Elecrow review, I have used their assembly service a few times for projects and generally been very impressed with the quality and contact. At a high level, the PCBWay ordering process was a lot more personal than I have worked with other unnamed vendors; which is fantastic if you are unsure in your designs and would like someone to review the design to make sure it’s actually manufacturable....

Where we left off Part 1 covered the quick rundown of selecting the STM32 and assigning a rough pinout in STMCube. Part 2 provided a quick through the schematic capture process and PCB layout at a high level. Part 3 covered exporting the PCB for manufacture and a quick run through the ordering process with PCBWay. Disclaimer In this section, I’m using PCBWay for the ordering process example. They have kindly offered to cover the cost of the production of these PCB’s before this series actually went live....

H2O N2 - Water Cooling an Odroid N2 In mid-2018, I started to move all of my home server use and compute from an HP microserver G8 over to ARM-based SBC’s. This move was inspired initially as a power-saving exercise to save the idle power draw of the microserver (50-100W). The original setup consisted of an Odroid C1 running standard developer services and the microserver moving to just acting as a backup device that only powered on to handle backing up computers in the house....

Where we left off Part 1 covered the quick run down of selecting the STM32 and assigning a rough pinout in STMCube. Part 2 provided a quick through the schematic capture process and pcb layout at a high level. Part 3 here will cover the exporting the PCB for manufacture and a quick run through the ordering process with PCBWay. Disclaimer In this section I’m using PCBWay for the ordering process example....

Where we left off Part 1 covered the quick run down of selecting the STM32 and assigning a rough pinout in STMCube. Part 2 here will run through the schematic capture process and pcb layout at a high level. Schematic Capture I design exclusively in KiCad now, having completely moved off other platforms over the past few years. As such this guide will only cover KiCad related design work. I highly reccomend using hierarchical sheets in your design, to allow for both (some) reuse, as well as make the seperate building blocks clearly definied....