How to easily test an N-CHANNEL or P-CHANNEL MOSFET using just a multimeter

You should have noticed that most multimeters come with a function to test BJT transistors, but none has a function to test the today’s more common MOSFETs Here are the steps to test an N-CHANNEL mosfet with just a multimeter ( applies to P-CHANNEL too, just swap + and – ), of course the MOSFET has … Read moreHow to easily test an N-CHANNEL or P-CHANNEL MOSFET using just a multimeter

Converting movies to 60 fps on linux ( with wine )

You may have heard of SVP project , if not visit their website http://www.svp-team.com/ . SVP in a first pass calculates the motion vectors for the frame ( the direction and velocity that every object in the video has moved with ), and then on the second pass it generates intermediate frames. With that technique it can … Read moreConverting movies to 60 fps on linux ( with wine )

A very simple internet of things system to control lights and other stuff

In these days i’ve worked on how to create a system that allows me to turn on and off lights or appliances at home with minimal cost and complexity, and there it is: https://github.com/tizbac/IoTManager Each node (ESP-01 ESP8266) with nodemcu firmware and the init.lua script from esp8266 folder of my repository has two outputs and can … Read moreA very simple internet of things system to control lights and other stuff

How to do transparent bridging / repeater on OpenWRT with an Atheros card

What you need An access point running OpenWRT and supporting 4 address mode ( WDS ) Another access point running OpenWRT and supporting both multi-ssid and 4 address mode ( or only 4 address mode if you want wifi->ethernet bridge ) Setting up the main access point First of all , you need to setup … Read moreHow to do transparent bridging / repeater on OpenWRT with an Atheros card

Quick test of NVA3 series reclocking with nouveau and comparison with NVIDIA drivers

These months there has been a lot of work on reclocking support for NVA3 nvidia cards by Roy Spliet on the opensource nouveau drivers. Since i own a Geforce 210 GT i’ve decided to give it a try with some benchmark and the results are quite good The reclocking of these cards is still very … Read moreQuick test of NVA3 series reclocking with nouveau and comparison with NVIDIA drivers

Alcor UFD Controller Reverse engineering part 1 , querying info and decrypting the flash list shipped in AlcorMP tool

I’ve started that work because i want to port AlcorMP utility to Linux and to be able to use custom flash chips with these UFD chips, this utility called AlcorMP allows to do a lot of stuff , from checking flash integrity to programming the usb flash drive into a CD-Rom emulator. For who is … Read moreAlcor UFD Controller Reverse engineering part 1 , querying info and decrypting the flash list shipped in AlcorMP tool

Resurrecting QBell 39″ LCD LED TV as VGA display using an MT6820 board

I’ve got that TV to be trashed, because after some hours it won’t turn on anymore, first thing i’ve checked is the power supply which was fine. The original board is labeled “T.MSD309.B21B”, and apparently it is a chinese universal LVDS LCD driver board. So i’ve checked on ebay and that board is available , … Read moreResurrecting QBell 39″ LCD LED TV as VGA display using an MT6820 board