Electronics,how to

Flash the original AT firmware on ESP8266

1 Dec , 2015  


How to flash the original Espressiv AT firmware on ESP8266. Besides restoring the factory state of the ESP8266 module, the AT firmware is used in conjunction with an external microcontroller to communicate over WiFi with simple serial line commands.  More…

how to

MacBook Pro does not boot: steps to fix

23 Sep , 2015  

My MacBook Pro does not boot! Here are the steps that I used to fix it, as a note to myself and to all in the same unpleasant situation. More…

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Electronics,how to

Flash NodeMCU firmware to the ESP8266 on a Mac – Guide

30 Aug , 2015  

Flashing NodeMCU firmware to the ESP8266 modules is straightforward using nodemcu-flasher on Windows. On other platforms some command line tools have to be used. Here are my notes with steps to flash NodeMCU to ESP8266 on a Mac.



Hot Plate PID Controller

15 Aug , 2015  

Arduino PID Controller

Low and slow cooking requires precise control of temperature and time. Instead of having to do the controls manually, here’s a little electronics project to precisely achieve a preset temperature over the time: a Hot Plate PID Controller.



how to,Tinkering

root galaxy s3 on mac

21 Jul , 2013  

Android Download screen

This a quick way to root galaxy s3 on mac,tested with android 4.1.2 or better and with the international version of the phone.


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how to

Convert books into PDF taking photos of pages

20 Oct , 2012  

an iPad is mounted for taking photos to convert a book into a searchable PDF

Convert books into PDF taking photos of pages and processing them into a searchable digital backup copy of  that you can take anywhere.


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Make PCBs with toner transfer: the laminator method

12 Oct , 2012  

a finished PCB made with laminator and toner transfer

Quick, accurate, cheap and easy PCBs using the toner transfer method with the aid of a laminator and the ikea catalog.


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Mini voltmeters are awesome

8 Oct , 2012  

a tiny voltmeter from Hong Kong

These mini voltmeters are really tiny. One of them would be a great addition to any variable power supply project.


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20W Hong Kong led vs conventional lights

29 Oct , 2010  

20W led test rig

Today I tried a 20W Hong Kong led  I found on ebay. It’s a 20 watt model, theoretically capable of putting out 1100 lumens… Unbelievable! One single 10$ led can replace conventional room lighting. See the pics.


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MassiveLyrics: get all the lyrics for your iTunes library

19 Sep , 2010  

App Icon

Have you ever found yourself missing the lyrics for a song in your iPod, but you don’t want to go search and add lyrics manually to each song in your iTunes library? Then this is the app for you!


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