Amicus18/Arduino/Whatever voltages

[dhouston]

The Arduino is a 5-volt based Atmel. The Amicus18 (PIC18F25K20) 3V3. But, the free Proton Compiler is also support (version 1.0.1.6) the PIC18F25K22 (5-volt device). I have design a clone of the Amicus18 board. The Ami18 Board, with a other power scheme and USB mini. Input power can be USB, external DC_IN or via ICSP™. (Microchip PICKit™ 2 and PICKit™) I use the board with the 3V3 and 5-volt PICs and some shields and this works very well. The 3V3 low-drop regulator LD1117 is current up to 800mA. Drive a WiFi is no problem. For programming I use PBP V2.60C

Yes - I learned that the official Arduinos are 5V only after starting this thread. I did find a web page with instructions for converting one to 3V3.

Is the Ami18 available? The link you provided appears broken.

I had earlier started a discussion in ZBasic's forums about designing my own clone with power supplied by an external 3V3 or 5V AMPS. These are available in 1.5A or more capacity. That discussion was turned towards converting an existing board to run ZBasic chips (which require a crystal change with the crystal depending on whether it uses 3V3 or 5V) and it was while exploring that option that I learned of the 5V only issue. I guess I was late to the party.

There is a Xino basic kit for Atmel.