Hardware & Software hacking
Have you ever wondered how a bubble looks like while popping? if you think it just “disappears”, you are wrong, and provided you have a decent flash and a camera that allows you to use something like 10sec shutter speed, then you can take such photos with just a relay module and an Arduino. The … Read more
Earlier i’ve written a post on how to install OpenWrt on that router, now it’s time to start fixing broken stuff, especially the reset button and the usb port, along with default switch/network configuration. After some work i’ve managed to reverse engineer the GPIOs of that router, GPIO0 is used on the wps button on … Read more
The title of that post may look crazy at first, but it’s not, it is entirely possible to convert your cheap 100M 8 port switch or stuff like that to a managed switch. That’s possible simply because, if you open up one of these and look at the datasheet, you will find out that they … Read more
When you buy an 898D soldering station there’s a very high chance that it is completely uncalibrated, leading to burnt/damaged parts and other kinds of problems since most of the times it is calibrated to give much higher temperature. For that procedure you are going to need: A cross-head screwdriver to open the 898D A … Read more
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 more
The SITECOM WL-326 is an ethernet+3g router featuring 300 Mbps wireless and an usb port to connect a 3G modem. This device is not officially supported by OpenWRT and not very common, so there’s basically zero info on it at the moment. First thing is to find out which SoC it uses, since it is … Read more
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 more
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 more
I’m posting this pinout, because it can’t be easily found, and using a multimeter it takes a lot to figure out, like it did for me MB Connector Panel back connector Description 1 2 3.3VDD 2 4 EDID eeprom power ( 3.3V) 3 6 EDID eeprom CLK 4 7 EDID eeprom DATA 5 28 VDD_EN … Read more
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 more