Re: The Mega Man X5
Vilma Steiert
In some fields of computing, mega may sometimes denote 1,048,576 (220) of information units, for example, a megabyte, a megaword, but denotes 1000000 (106) units of other quantities, for example, transfer rates: 1megabit/s = 1000000bit/s. The prefix mebi- has been suggested as a prefix for 220 to avoid ambiguity.
The Arduino Mega 2560 is a microcontroller board based on the ATmega2560. It has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Mega 2560 board is compatible with most shields designed for the Uno and the former boards Duemilanove or Diecimila.
The ATmega2560 on the Mega 2560 comes preprogrammed with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500 protocol (reference, C header files).
The Mega 2560 board has a number of facilities for communicating with a computer, another board, or other microcontrollers. The ATmega2560 provides four hardware UARTs for TTL (5V) serial communication. An ATmega16U2 (ATmega 8U2 on the revision 1 and revision 2 boards) on the board channels one of these over USB and provides a virtual com port to software on the computer (Windows machines will need a .inf file, but OSX and Linux machines will recognize the board as a COM port automatically. The Arduino Software (IDE) includes a serial monitor which allows simple textual data to be sent to and from the board. The RX and TX LEDs on the board will flash when data is being transmitted via the ATmega8U2/ATmega16U2 chip and USB connection to the computer (but not for serial communication on pins 0 and 1).
Rather then requiring a physical press of the reset button before an upload, the Mega 2560 is designed in a way that allows it to be reset by software running on a connected computer. One of the hardware flow control lines (DTR) of the ATmega8U2 is connected to the reset line of the ATmega2560 via a 100 nanofarad capacitor. When this line is asserted (taken low), the reset line drops long enough to reset the chip. The Arduino Software (IDE) uses this capability to allow you to upload code by simply pressing the upload button in the Arduino environment. This means that the bootloader can have a shorter timeout, as the lowering of DTR can be well-coordinated with the start of the upload.
The Mega 2560 does not use the FTDI USB-to-serial driver chip used in past designs. Instead, it features the ATmega16U2 (ATmega8U2 in the revision 1 and revision 2 Arduino boards) programmed as a USB-to-serial converter.
Revision 2 of the Mega 2560 board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode.
Revision 3 of the Arduino board and the current Genuino Mega 2560 have the following improved features:
Love my stand up mega bags. I like to bake muffins, English muffins, and scones and these bags are perfect for keeping a supply of these baked goods on hand in the freezer for my husband and I as we enjoy our new retirement lifestyle!
I think I have at least 10 of these bags. They are wonderful. Easy to wash by hand or dishwasher. My favorite are the standing mega bags. Holds quite a bit. Use for fresh and frozen vegetables and my frozen fruit. Now if I can only get my husband to zip them shut after opening and using them. I recommend.
I tried to get one Stasher bag in each size. I needed to transferring frozen cubes of homemade bone broth into this stand up mega bag. I wish I got two as I underestimated the sizes. I love them for freezer storage! Easy to clean, easy closure. The only thing to be aware of is not to open too wide to keep the integrity of the seal. This size I would compare to a freezer gallon to a disposable one time use zip-top bag, but better because it stands. The durability is great. I wish I got more than one.
Max Mega Menu will automatically convert your existing menu into a mega menu. You can then add any WordPress widget to your menu, restyle your menu using the theme editor and change the menu behaviour using the built in settings. Max Mega Menu is a complete menu management plugin, perfect for taking control of your existing menu and turning it into a user-friendly, accessible and touch ready menu with just a few clicks.
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