Software user

Hi friends, This is an awesome trick for those who love to download youtube videos at all the places, even at their workplace. There, they don't have to download and install any additional software for downloading the youtube video. Follow these steps: Open desired video in youtube. Read more »

With the new ESP8266 module, adding WiFi to any Arduino project became a lot cheaper. This module has a serial interface; therefore it only requires connecting 4 pins: Tx, Rx, 3V3 and Ground, as shown in this image. A few peculiar facts about ESP8266: default serial baud rate is 57600; since this rate is too high for SoftwareSerial library, a hardware port should be used; requires 3V3 for power and level shifting for Rx signal (5V to 3V3); physical interface is a 2x4 pin male header; firmware can be upgraded to a version that allows 9600 baud rate; can be used either as client or server. The first two characteristics makes it a perfect candidate for a module with an XBee footprint, as is WiFly , for example. It took me about half an hour to do it, following these steps. cut a piece of 2-mm perfboard to the XBee dimensions; solder two 10-pin the 2-mm-spaced male headers on the sides; desolder (using wick) the 2x4 header; mechanically attach the header-less ESP8266 module to the XBee p

My investigation into the failure of the M4 receiver remote controlling my Wise Clock 4 concluded with the need to add a step-up converter. The Sure 1632 display makes the input voltage drop sometimes below the absolute minimum of 4.5V required for the M4 module to work properly. It's not the noise (spikes) in the 5V power, nor the interference on 315MHz. I designed a simple " M4 receiver backpack " that uses a DC-DC step-up converter to ensure a 5V power for the M4 receiver module. The board supports 2 different kinds of converters, one from ebay (red in the photo below), the other from tindie (made by BBtech, black in the photo). The backpack can be used, by default, without the step-up converter if the voltage is steady at around 5V. (A trace-jumper must be cut when a converter is added.) The wireless remote pair of 4-key fob transmitter and receiver module is sold by Adafruit or vendors on ebay. The assembled board wired to Wise Clock 4 is shown in the photos be