Finalizing hardware before you should

摘要

Finalizing hardware before its time can delay a project. Improper plan-ning of long hardware leadtimes may prompt you too early to final- ize the hardware portion of your design. This poor planning can hap-pen before the product definition, firmware design, or hardware-pro- totype testing is complete. If you then discover that you need more functions, such as an additional temperature sensor or an extra key for the keypad, your project may be at a point at which changes may be difficult or impossible to implement. Can you recuperate from these hardware deficiencies? The answer is yes, but doing so requires either a little attention at the beginning of the design or a lot of time on the back end.