TP Link WA801ND v3 OpenWRT Install guide

WA801ND v3 Hardware overview Some weeks ago i’ve succesfully ported OpenWRT to the TP-Link TL WA801ND v3, that access point features 2×2 MIMO, detachable antennas, 32 MBytes of ram and 4 Mbytes of flash. It is based, like most new tp-link devices on a qualcomm atheros system on chip ( QCA9533-BL3A)  which integrates the MIPS … Read moreTP Link WA801ND v3 OpenWRT Install guide

Convert your cheap “unmanaged” switch to a VLAN capable layer 2 managed switch for just $2

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 moreConvert your cheap “unmanaged” switch to a VLAN capable layer 2 managed switch for just $2

Calibrating YIHUA 898D soldering station

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 moreCalibrating YIHUA 898D soldering station

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

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