ChipHeadBang – design for an USB to Serial converter with ICSP header
There are a number of widely used methods to connect microcontroller projects to USB, all of which are not entirely satisfactory:
- The commonly used FTDI chips are somewhat expensive, and their manufacturer has made some unpopular decisions with their driver support (although technically, the FTDI drivers work quite well).
- Atmel also offers microcontrollers with built in USB, but those also tend to be a bit expensive.
- Software USB stacks use a considerable proportion of the microcontroller’s processing power, and as not always as reliable as hardware solutions.
From Schematic to PCB Production, Just Need One Tool
Free Circuit Design Software: learn to use Editor quickly and easily
Cheapest PCB: 10pcs 2-layers 10cm×10cm only $8.21, 3-day build time, 100% E-test