Review on Waveshare Raspberry Pi PoE+ HAT Compatible With Raspberry Pi 3B+/4B 802 by Josue Porter

Bought for the cool factor that goes for a pi hole setup. Has been working flawlessly for a few days! :) Fits p3b+ like a glove and really connects once connected. Booted with a fresh SD image. Most of time. I was unaware of Ubuntu's changes to the snappy/core image setup and it failed to start after several attempts to boot the kernel. I suspect that this module did not cause a kernel panic. but it was worth checking it out fully in hindsight. I initially suspected hardware/power issues given the boot failure point, but a quick image swap to a new Rasbian quickly eliminated any hardware issues for me. Everything was fine and I decided to stick with Rasbian for this project. A tiny fan can create real airflow (and noise)! Luckily I bought it in time to have the adjustment mechanisms built into Rasbian and somewhat documented! I was about to master some `dtc` compilation skills until I scrolled down the forum! This module blocks the installation of a LAN chip heatsink (tiny next to the USB ports), but given the controlled fan and airflow design, this should be debatable. Tall CPU heatsinks don't work either. Although I had a shorter one that fitted well. Not sure if a CPU heatsink is recommended or not, but it shouldn't hurt. I haven't tested "touching" open circuits when the device is on, but I'm curious if it matters given the average input voltage. Not so curious to ruin a $35 device! My goal when setting the fan was to use the fan a little but not push it to its limit in standby mode. I also wanted to disable max speed unless I'm doing some other (non-pi-hole) task on the host. My favorite 72F Ambient fan control positions are as follows.