Guys,
It appears that this vendor sells a HE3D Melzi version of the common 128x64 RAMPS discount smart controller that's been modified for Melzi boards (which don't have the I/O connections of RAMPS and even the Sanginololu has).
[www.aliexpress.com]
I'm not sure about this, but I think it may have either an SPI LCD or a IIC I/O expander chip on board.
Has anyone seen a schematic for this version because I'd like to see what's been added that could useful to convert the old RAMPS version smart controllers to Melzi use ?
Martin
It appears that this vendor sells a HE3D Melzi version of the common 128x64 RAMPS discount smart controller that's been modified for Melzi boards (which don't have the I/O connections of RAMPS and even the Sanginololu has).
[www.aliexpress.com]
I'm not sure about this, but I think it may have either an SPI LCD or a IIC I/O expander chip on board.
Has anyone seen a schematic for this version because I'd like to see what's been added that could useful to convert the old RAMPS version smart controllers to Melzi use ?
Martin