3 ms·

I mean, one of my hats that fried one of my Pis was a Waveshare hat. This one actually https://www.amazon.com/gp/product/B0974TK3KD/ https://www.amazon.com/gp/

by dheera 3y ago

I mean, one of my hats that fried one of my Pis was a Waveshare hat. This one actually https://www.amazon.com/gp/product/B0974TK3KD/ https://www.amazon.com/gp/product/B0974TK3KD/ PoE operates at a pretty high voltage (almost half of line voltage!) and Waveshare products aren't UL listed.

NavinF 3y ago
>PoE operates at a pretty high voltage No, it operates at ELV (extra-low voltage): https://en.wikipedia.org/wiki/Extra-low_voltage https://en.wikipedia.org/wiki/Extra-low_voltage The whole point of PoE, 48V PD USB-C, and similar tech is that they don't need to be UL listed. PoE is also electronically current limited unlike mains power so you can't pull 200A to start a motor nor can you start fires without a lot of effort. That's assuming you use a real PoE switch that negotiates power levels, not cheap passive injectors. Anyway that hat has some bad reviews claiming DoA, missing components, and dead Pis. Why not get the official hat? https://www.raspberrypi.com/products/poe-hat/ https://www.raspberrypi.com/products/poe-hat/