Category Archives: Hardware

Everything related to physical devices/objects

Realtek RTL9210 and TRIM

I’ve recently started buying M.2 drives instead of traditional 2.5” SSDs. For USB enclosures I went with a UGREEN M.2 NVMe USB3.2 Gen2 enclosure that comes with all the bells and whistles. They have a Realtek RTL9210 chip which does support the “discard” or TRIM operation to mark unused space on the SSD. However, some… Read More »

Flaky WiFi dongle toggle script

After moving to a new place, I had to put my ADS-B handling Raspberry Pi 2B into a cupboard far from any network connection. So I’ve plugged in a cheap USB WiFi dongle and connected it to my WiFi. However, I don’t know whether it’s the dongle or something specific to the RasPi2’s USB implementation,… Read More »

Resetting your Sonicare toothbrush

In December 2011, I bought a Philips Sonicare DiamondClean Smart 9400 toothbrush set, product code HX9917/89. This included a HX992B handset – that offers Bluetooth connection to their app and also has a LED in the bottom to show when you’re applying too much pressure while brushing. The handset transfers your brushing info to their… Read More »