k, my son needed my official arduino for a project and took it over a friends house.. so leaving me with a clone back backup that i just opened:
ATmega2560-16AU CH340G MEGA 2560 R3 Board + Free USB Cable For Arduino 2Y - that i got from ebay..
it's set to com4.. the mega2560 is selected in the ide as the board.. but when i upload a sketch.. even the blink.. it fails.. and both red leds stay lit on the board.. am i doing something wrong or forgetting a step?
Specifications:
Microcontroller:ATmega2560
Clock Speed:16 MHz
EEPROM:4 KB
SRAM:8 KB
Flash Memory:256 KB of which 8 KB used by bootloader
Operating Voltage:5V
Input Voltage (recommended):7-12V
Analog Input Pins:16
Digital I/O Pins:54 (of which 14 provide PWM output)
DC Current for 3.3V Pin:50 mA
DC Current per I/O Pin:40 mA
Size:100*55mm
Package Include:
1 x ATmega2560-16AU CH340G Board
1 x USB Cable
i don't know what's with this CH340G thing - but i can't find a driver for it in english
it stops loading sketches.. gets timed out every time.. so if it's not the driver i don't know what it is.. this is brand new.. i just opened the package yesterday.. IDE is set to mega2560 board and com set to com4 for as stated in the device manager..
it's just not completing sketch uploads.. both red leds stay lit - always getting timed out.. so it will never accept a sketch the way i see it.
That's stupid. It's like the best alternative to an FTDI (because I'm not buying that after the FTDI gate). It has perfectly signed drivers that work straight out of the box, not like a PL2303. And it's cheap as fuck!
well it doesn't work.. i downloaded the drivers.. tried on win 7, 8.1 & 10.. it doesn't upload any sketches.. stops at like 90% and then gives me avrdude timed out errors.. so if it's not working it's useless.. hence a POS and belongs in the trash
Do you have an Uno or other properly working Arduino on hand? You can use an Arduino as an ISP programmer by loading Nick Gammon's bootloader sketch on it. http://www.gammon.com.au/bootloader
It would be something to try, no guarantee.
Almost forgot, before you do that, I recommend doing the Loop Back Test. It is described in one of the pinned posts at the top of the forum. If your board passes the Loop Back Test, meaning characters you input into the Serial Monitor are repeated back to you, the USB-to-serial part of your board is ok and next thing to suspect is the bootloader.
dmjlambert:
Almost forgot, before you do that, I recommend doing the Loop Back Test. It is described in one of the pinned posts at the top of the forum. If your board passes the Loop Back Test, meaning characters you input into the Serial Monitor are repeated back to you, the USB-to-serial part of your board is ok and next thing to suspect is the bootloader.
yeah it passed that test.. guess i'll just have to wait til my other mega comes in to burn boatloader