“We (most of us) really like Arduino because it’s possible to make cheap clones, lots of libraries, examples, forum support and community out there. Outside Arduino world, I like Cypress PSoC for some of its cool features like Graphical IDE, APIs, great features and understandable documentation. I have bunch of PSoC® 4 CY8CKIT-049 4xxx Prototyping Kits. The first half of this kit has CY7C65211 device, which is by default a programmable USB-UART serial bridge. I was thinking, maybe I can turn this part into a Arduino Porgrammer. Bingo ! It worked, with a little bit of hack and a Uno Bootloader Atmega328P. Arduino i.e. Atmegaxxx with Arduino Bootloader requires Rx, Tx data lines and DTR control line for uploading sketch.”