Tutorials

Oracle PL/SQL - Dynamic SQL
February 2015

Using dynamic SQL in PL/SQL - tips and tricks.


Repair a laptop computer using an oven
November 7, 2014

My mom's laptop computer wouldn't power on, caps lock light blinks 5 times indicating "General system board failure". It's is a lower end market laptop computer, a HP Compaq 615, and this type of failure is common for that model. But luckily it can be repaired using a little unorthodox method - by baking a motherboard in an oven.


Trying ESP8266 for the first time
November 2, 2014

ESP8266 is a great new WiFi to RS-232 module. The great thing about it is that it cost only 5$, and it provides the abillity to connect your MCU to a network using only RS-232 port. Also, it has built-in TCP/IP stack so it should be simple enough to setup your MCU to talk to other devices in network or servers on the Internet. Processor on this module is Tensilica Xtensa LX3 32bit, clocked at 80 MHz. This is my first try of using this module.
Tags: ESP8266 network