Previous image Up to current index page (1) Next image Now stick more mounting tape to the flat side of the DC-to-DC buck converter, which one should already have adjusted for 5.8V output. If not, it may fry the Arduino board later when first powered-on. Stick the DC-to-DC buck converter on top of the Arduino, being careful not to obstruct any of the signal holes, and also avoiding the (red) reset switch area. This is what it looks like once all stacked together with 3M mounting tape. Solder the small "mode switch" to this side of the RJ45 jack. This step could be done even earlier if desired. Use flux, and try not to overheat it to the point where the switch innards melt! I run my soldering iron at 330C for most things. Now begin to wire the ethernet module to the Arduino. Begin with a solid wire straight down from Arduino Pin-10 to the SCS (or CS) chip-select signal of the ethernet module. This will also act as a support post, making the assembly much stiffer and more rigid.Then begin to add the extra signal wires, starting with the orange one shown here. It is easiest to complete that entire first row of five holes on the ethernet module before attaching wires to the second, outer row of five holes. Finish adding all of the signal wires to the ethernet module, and then also run power to it and the Arduino from the Buck converter. Here, RED is the Buck output, and BLACK is GND.The mode switch also gets wired now, by soldering the bottom pin to the side of the RJ45 or to any other convenient GND point. The middle wire is connected (GREEN) to Arduino Pin-8.I have added a bit more translucent electrical tape between the switch and the RJ45 jack after doing this, to prevent future accidental shorts there.
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This is what it looks like once all stacked together with 3M mounting tape.
This is what it looks like once all stacked together with 3M mounting tape. (z040102332)
z040102332 (11/31): OnePlus-LE2125 ISO100 1/120 f1.9 6.064mm 2022-02-04 10:23
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