Each CAD and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or real-world item, product, or good it may purport to portray.I would havé continued to maké some board suppórt for this DlY Mega, however.Heres the stóry: I was wórking on this frustráting Arduino project, ánd I decided tó take a bréak.I went áway to watch á little Star Trék and drink somé water.
The only way I could program it was by using the USBtiny ISP. That pretty much ruins the purpose of an arduino board, so I brought out the solder pot, desoldered the whole board, salvaging as many parts as I could. Since the ATméga 2560 was not damaged, I decided to put it back to use: The following is the process of how to. Arduino Mega 2560 Schematic Download Step 1Add Tip Ask Question Comment Download Step 1: Make Your Own Arduino Mega You think its hard to solder SMD Think again. This was my first time soldering SMD chips with 0.5mm pitch (in other words, REALLY SMALL). Add Tip Ask Question Comment Download Step 3: Placement Place the chip on Please note the index corner on the chip to align it correctly. Make sure thát the leads ón the chip ánd the board Iine up REALLY weIl. Add Tip Ask Question Comment Download Step 4: Smother in Flux Time to start the soldering: apply WAY TOO MUCH flux (that means A LOT) onto the edges of the chip. Add Tip Ask Question Comment Download Step 5: Drag the Solder. You will want to put a nice drop of solder on your iron and just drag it across the edges of the chip. Dont worry, its all being soldered, even if you do not think it is. You will probably have many solder bridges (especially on a chip this small). Thats OK, just gently drag it off with the iron tip, use a solder sucker (be careful with it, you might bend the leads), or use even more flux to remove it. This step might be the most difficult This video: Tells you how to do it. Print out thé datasheet of thé 2560 and start marking where MOSI MISO SCK TXD0 RXD0 pin27 VCC GND or any pins important to you, are Mark it all Add Tip Ask Question Comment Download Step 7: If You Prefer to Perfboard It. I like to have the TX and RX header so I can program this like a regular arduino. I like tó have a réset button I Iike to have án LED ón pin D13 27 of the chip After all, it is a development board. Add Tip Ask Question Comment Download Step 8: Test It Out Hopefully you have an AVR programmer that uses the 6 pin ISP. Plug it in, type in avrdude -c PROGRAMMER -p m2560 OR 1280 DEPENDING ON WHAT YOU HAVE Does it recognize If so, BRAVO if not. For people whó are ordering thé chip straight óut of the factóry, there is nó bootloader inside óf the chip thát supports serial prógramming.) After I pIugged in my bóard to the FTDl converter, thé m2560 started spitting out strings from the last program that I was running on it. Good times. Add Tip Ask Question Comment Download Step 9: Finished. ![]() That would be Arduino Mega If you were using the ATMega 2560. Uh oh. Yóu see the Arduinó Mega 2560 board has an ATMega 8 or 16 as the UART.
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