October 8, 2009
about 4 years ago
Why not flash the USBaspLoader onto the chip and do away with the need for an FTDI breakout? You’ve got everything you need there except a dedicated pin for selecting the upload mode. You can probably use one of B3..5 to trigger the bootloader to run the USBasp emulator code rather than jumping to the user code or maybe someone can/has patched USBaspLoader to run on a timeout like the Arduino does.
I’m tempted to pick one of these up or one of the plain sensor breakouts to use as position/motion feedback on an XY table, but I have enough projects as it is.
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