{"id":26585,"date":"2019-11-13T18:06:58","date_gmt":"2019-11-13T10:06:58","guid":{"rendered":"\/blog\/?p=26585"},"modified":"2019-11-13T18:07:01","modified_gmt":"2019-11-13T10:07:01","slug":"atmega2560-features-comparisons-and-arduino-mega-review","status":"publish","type":"post","link":"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/","title":{"rendered":"ATmega2560 &#8211; Features, Comparisons, and Arduino Mega Review"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/www.microchip.com\/_images\/ics\/medium-ATmega2560-TQFP-100.png\" alt=\"\" width=\"156\" height=\"130\"\/><figcaption><a href=\"https:\/\/www.microchip.com\/wwwproducts\/en\/ATmega2560\">ref<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">Atmega2560, commonly found in the Arduino Mega 2560 as its main microcontroller. It&#8217;s an AVR RISC-based microcontroller that executes powerful instructions in a single clock cycle. This allows it to strike a fine balance between power consumption and processing speed.<\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">In this blog, I&#8217;ll be covering the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>ATmega2560 features, the good and the bad, comparisons<\/li><li>Atmega2560 microcontroller boards; Arduino Mega 2560, Seeeduino Mega<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Features &amp; Parametrics:<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Features:<\/strong><\/h4>\n\n\n\n<p><\/p>\n\n\n\n<ol class=\"wp-block-list\"><li><strong>High Endurance Non-volatile Memory Segments<\/strong> <ul><li>Write\/Erase Cycles: 10,000 Flash <\/li><\/ul><\/li><li><strong>Atmel QTouch library support<\/strong><\/li><li><strong>JTAG (IEEE std. 1149.1 compliant) interface<\/strong><\/li><li><strong>Peripheral Features<\/strong> <ul><li>Real-time Counter with Separate Oscillator<\/li><li>Programmable Watchdog Timer with Separate On-chip Oscillator<\/li><li>On-chip Analog Comparator<\/li><li>Interrupt and Wake-up on Pin Charge<\/li><\/ul><\/li><li><strong>Other special features<\/strong> <ul><li>Power-on Reset and Programmable Brown-out Detection<\/li><li>Internal Calibrated Oscillator<\/li><li>External and Internal Interrupt Sources<\/li><li>Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby <\/li><\/ul><\/li><\/ol>\n\n\n\n<p>For the full list of features, you can view it in the <a href=\"http:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/Atmel-2549-8-bit-AVR-Microcontroller-ATmega640-1280-1281-2560-2561_Summary.pdf\">datasheet<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Parametrics:<\/strong><\/h4>\n\n\n\n<table>\n  <tr>\n    <th>Name<\/th>\n    <th>Value<\/th>\n  <\/tr>\n  <tr>\n    <td>Program Memory Type<\/td>\n    <td>Flash<\/td>\n  <\/tr>\n  <tr>\n    <td>Program Memory Size (KB)<\/td>\n    <td>256<\/td>\n  <\/tr>\n  <tr>\n    <td>CPU Speed (MIPS\/DMIPS)<\/td>\n    <td>16<\/td>\n  <\/tr>\n  <tr>\n    <td>SRAM (KB)<\/td>\n    <td>8,192<\/td>\n  <\/tr>\n  <tr>\n    <td>Data EEPROM\/HEF (bytes)<\/td>\n    <td>4,096<\/td>\n  <\/tr>\n  <tr>\n    <td>Digital Communication Peripherals<\/td>\n    <td>4-UART, 5-SPI, 1-I2C<\/td>\n  <\/tr>\n  <tr>\n    <td>Capture\/Compare\/PWM Peripherals<\/td>\n    <td>4 Input Capture, 4 CCP, 16PWM<\/td>\n  <\/tr>\n  <tr>\n    <td>Timers<\/td>\n    <td>2 x 8-bit, 4 x 16-bit<\/td>\n  <\/tr>\n  <tr>\n    <td>Number of Comparators<\/td>\n    <td>1<\/td>\n  <\/tr>\n  <tr>\n    <td>Temperature Range (\u00b0C)<\/td>\n    <td>-40 to 85<\/td>\n  <\/tr>\n  <tr>\n    <td>Operating Voltage Range (V) <\/td>\n    <td>1.8 to 5.5 <\/td>\n  <\/tr>\n  <tr>\n    <td>Pin Count<\/td>\n    <td>100<\/td>\n  <\/tr>\n<\/table>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"text-align:center\">What&#8217;s Good and Bad?<\/h3>\n\n\n\n<p style=\"color:#000000;text-align:center\" class=\"has-text-color\"><strong>Advantages:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Low power consumption with fast start-up<\/li><li>Easier to use, with 8-bit microcontroller being less complex than 32\/64 bit versions<\/li><li>QTouch Suite allows for ease of exploring, developing and debugging own touch applications<\/li><li>Patented Adjacent Key Suppression technology allows for unambiguous detection of key events<\/li><\/ul>\n\n\n\n<p style=\"color:#000000;text-align:center\" class=\"has-text-color\"><strong>Disadvantages:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Limited amount of flash memory write cycles restricts the number of times images can be flashed when programmed to pc<\/li><li>Naturally lacks incremental performance compared to higher bit microcontrollers<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Microcontroller Comparisons:<\/h3>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">ATmega2560 belongs in an umbrella of microcontrollers; ATmega640\/1280\/1281\/2560\/2561. It does share common configurations such as the EEPROM and RAM but still consists of differences as shown below:<\/p>\n\n\n\n<table>\n  <tr>\n    <th>Device<\/th>\n    <th>Flash<\/th>\n    <th>General Purpose I\/O pins<\/th>\n    <th>16-bit resolution PWM channels<\/th>\n    <th>Serial USARTs<\/th>\n    <th>ADC Channels<\/th>\n  <\/tr>\n  <tr>\n    <td>ATmega640<\/td>\n    <td>64KB<\/td>\n    <td>86<\/td>\n    <td>12<\/td>\n    <td>4<\/td>\n    <td>16<\/td>\n  <\/tr>\n  <tr>\n    <td>ATmega1280<\/td>\n    <td>128KB<\/td>\n    <td>86<\/td>\n    <td>12<\/td>\n    <td>4<\/td>\n    <td>16<\/td>\n  <\/tr>\n  <tr>\n    <td>ATmega1281<\/td>\n    <td>128KB<\/td>\n    <td>54<\/td>\n    <td>6<\/td>\n    <td>2<\/td>\n    <td>8<\/td>\n  <\/tr>\n  <tr>\n    <td>ATmega2560<\/td>\n    <td>256KB<\/td>\n    <td>86<\/td>\n    <td>12<\/td>\n    <td>4<\/td>\n    <td>16<\/td>\n  <\/tr>\n  <tr>\n    <td>ATmega2561<\/td>\n    <td>256KB<\/td>\n    <td>54<\/td>\n    <td>6<\/td>\n    <td>2<\/td>\n    <td>8<\/td>\n  <\/tr>\n<\/table>\n\n\n\n<p><\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">The closest microcontroller that comes close to the ATmega2560 is the ATmega1280, with the only difference being the additional 128KB of flash. <\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\"><strong>This additional amount of flash 2560 brings will be better for projects that require a larger programming space.<\/strong><\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\"><em>Note: Arduino Based Mega 1280 is no longer manufactured by Arduino, making 2560 the only option <\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Microcontroller Boards that use the ATmega2560: <\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Arduino Mega 2560<\/strong><\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/store-cdn.arduino.cc\/usa\/catalog\/product\/cache\/1\/image\/500x375\/f8876a31b63532bbba4e781c30024a0a\/a\/0\/a000067_iso_1_.jpg\" alt=\"\" width=\"250\" height=\"188\"\/><\/figure><\/div>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">Known for its capabilities in handling more complex projects, the Arduino Mega 2560 gives your projects plenty of room and opportunities. It&#8217;s recommended for 3D printers and robotics projects with its 54 digital I\/O pins, 16 analog inputs, and a large space. <\/p>\n\n\n\n<p><strong>Features\/Specifications <\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Operating voltage: 5V<\/li><li>Input voltage (recommended): 7-12V<\/li><li>Input voltage (limits): 6-20V<\/li><li>Digital I\/O pins: 54 (of which 14 provide PWM output)<\/li><li>Analog input pins: 16<\/li><li>DC current per I\/O pin: 40mA<\/li><li>DC current for 3.3V pin: 50mA<\/li><li>Flash Memory: 256 KB, 8KB used by bootloader<\/li><li>SRAM: 8 KB<\/li><li>EEPROM: 4 KB<\/li><li>Clock Speed: 16 MHz<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">Arduino Mega 2560 is an all-around good option. There&#8217;s no denying that this board brings performance with the running of an ATmega2560, but it provides a substantial number of I\/O pins and program space as well.<\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">If you&#8217;re currently an Arduino Uno user, it&#8217;s perhaps time to step up and take a look at the Arduino Mega 2560 for that extra &#8220;juice&#8221; of performance and I\/O pins.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p style=\"font-size:23px\" class=\"has-text-color has-vivid-red-color\"><strong>But wait, <\/strong><\/p>\n\n\n\n<p style=\"font-size:23px\" class=\"has-text-color has-vivid-red-color\"><strong>What if we told you there&#8217;s an even better version?<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><a href=\"https:\/\/www.seeedstudio.com\/Seeeduino-Mega-ATmega2560.html?utm_source=blog&amp;utm_medium=blog\">Seeeduino Mega: Wider\u00a0range\u00a0of\u00a0support\u00a0<\/a><\/strong><\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/media-cdn.seeedstudio.com\/media\/catalog\/product\/cache\/ab187aaa5f626ad16c8031644cd2de5b\/h\/t\/httpsstatics3.seeedstudio.comimagesproductseeeduino20mega.jpg\" alt=\"\" width=\"350\" height=\"263\"\/><\/figure><\/div>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">If you thought 54 I\/O pins are sufficient, there&#8217;s more to come. The Seeeduino Mega is an improved version of the Arduino Mega 2560, offering a total of 70 I\/O pins and maintaining the powerful ATmega2560 processor, 14 PWM, 4 UART.<\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\"><strong>Comparison table:<\/strong><\/p>\n\n\n\n<table>\n  <tr>\n    <th>Features<\/th>\n    <th>Arduino Mega 2560<\/th>\n    <th>Seeeduino Mega<\/th>\n  <\/tr>\n  <tr>\n    <td>I\/O Pins<\/td>\n    <td>54<\/td>\n    <td>70<\/td>\n  <\/tr>\n  <tr>\n    <td>PWM<\/td>\n    <td>14<\/td>\n    <td>14<\/td>\n  <\/tr>\n  <tr>\n    <td>Analog Pin<\/td>\n    <td>16<\/td>\n    <td>16<\/td>\n  <\/tr>\n  <tr>\n    <td>UART<\/td>\n    <td>4<\/td>\n    <td>4<\/td>\n  <\/tr>\n  <tr>\n    <td>Operating Voltage<\/td>\n    <td>5V<\/td>\n    <td>3.3V\/5V (Selectable)<\/td>\n  <\/tr>\n  <tr>\n    <td>Placement of Reset Button<\/td>\n    <td>Top<\/td>\n    <td>Side<\/td>\n  <\/tr>\n<\/table>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\"><\/p>\n\n\n\n<p><strong>Other Features:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Compatible with most Arduino Duemilanove and Diecimila Shields<\/li><li>Selectable 5V\/3.3V operation<\/li><li>14 Analog Inputs<\/li><li>Small form factor, 30% smaller than Arduino Mega<\/li><li>Easy to program, no additional hardware is required to load firmware \u2013 just plug to a USB port and you\u2019re good to go.<\/li><li>ICSP Header<\/li><li>Can be powered through a battery or through a AC to DC adaptor<\/li><\/ul>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\"><strong>Hardware Overview:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/github.com\/SeeedDocument\/Seeeduino_Mega\/blob\/master\/img\/Seeeduino_Mega_hardware1.png?raw=true\" alt=\"\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-color has-medium-font-size has-vivid-red-color\"><strong>How&#8217;s Seeeduino Mega a better option:<\/strong><\/p>\n\n\n\n<p style=\"background-color:#ffe6e7;color:#000000\" class=\"has-text-color has-background\"><strong>Additional I\/O pins:<\/strong><\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">16 more I\/O pins for your disposal.<\/p>\n\n\n\n<p style=\"background-color:#ffe6e7;color:#000000\" class=\"has-text-color has-background\"><strong>Support for 3.3 V selectable operating voltage:<\/strong><\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">The support for 3.3V operating voltage opens up for a wider range of compatible modules\/accessories to pair alongside the Seeeduino Mega.<\/p>\n\n\n\n<p style=\"background-color:#ffe6e7;color:#000000\" class=\"has-text-color has-background\"><strong>Better placement of reset button:<\/strong><\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">The side placement of the reset button for the Seeeduino Mega allows for better user convenience as compared to the top for the Arduino Mega 2560.<\/p>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\"><strong>Seeeduino Mega applications:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Internet of Things<\/li><li>DIY<\/li><li>Robot<\/li><li>Smart House <\/li><li>3D Printer<\/li><li>Industrial<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Summary<\/h2>\n\n\n\n<p style=\"color:#000000\" class=\"has-text-color\">Overall, the Seeeduino Mega is my recommendation as not only does it pack the ATmega2560 chip that delivers a much-improved performance when compared to something like the ATmega328, the board itself has significant improvements over the Arduino version.<\/p>\n\n\n\n<p><em>If you&#8217;re looking for ATmega328, feel free to check out my older <\/em><a href=\"http:\/\/www.seeedstudio.com\/blog\/2019\/10\/22\/atmega328p-the-one-microcontroller-you-should-start-with\"><em>article <\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Atmega2560, commonly found in the Arduino Mega 2560 as its main microcontroller. It&#8217;s an AVR<\/p>\n","protected":false},"author":2850,"featured_media":26744,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"iawp_total_views":0,"footnotes":""},"categories":[1],"tags":[1972,1756,1974],"class_list":["post-26585","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-arduino-mega","tag-microcontroller","tag-seeeduino-mega"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ATmega2560 - Features, Comparisons, and Arduino Mega Review - Latest News from Seeed Studio<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ATmega2560 - Features, Comparisons, and Arduino Mega Review - Latest News from Seeed Studio\" \/>\n<meta property=\"og:description\" content=\"Atmega2560, commonly found in the Arduino Mega 2560 as its main microcontroller. It&#8217;s an AVR\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/\" \/>\n<meta property=\"og:site_name\" content=\"Latest News from Seeed Studio\" \/>\n<meta property=\"article:published_time\" content=\"2019-11-13T10:06:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-11-13T10:07:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2019\/11\/atmega-cover.png\" \/>\n\t<meta property=\"og:image:width\" content=\"642\" \/>\n\t<meta property=\"og:image:height\" content=\"366\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Shawn\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Shawn\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/\",\"url\":\"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/\",\"name\":\"ATmega2560 - Features, Comparisons, and Arduino Mega Review - Latest News from Seeed Studio\",\"isPartOf\":{\"@id\":\"https:\/\/www.seeedstudio.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2019\/11\/atmega-cover.png\",\"datePublished\":\"2019-11-13T10:06:58+00:00\",\"dateModified\":\"2019-11-13T10:07:01+00:00\",\"author\":{\"@id\":\"https:\/\/www.seeedstudio.com\/blog\/#\/schema\/person\/c9b61b761840d544e2d830b0e3bc9fe2\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/#primaryimage\",\"url\":\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2019\/11\/atmega-cover.png\",\"contentUrl\":\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2019\/11\/atmega-cover.png\",\"width\":642,\"height\":366,\"caption\":\"atmega2560\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.seeedstudio.com\/blog\/2019\/11\/13\/atmega2560-features-comparisons-and-arduino-mega-review\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.seeedstudio.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ATmega2560 &#8211; 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