/challenges-projects/design-challenges/sustain-the-world-design-challenge/b/blog/posts/sustain-the-world---smart-portable-freezer-8-progress-and-failure1. Slow Progress 2. The Failure 3. Thing to learn and way to go 1. Slow ProgressIt has been several weeks with little progress. Study the datasheet of XMC4400 and XMC4200 , even XMC4700. To find out that hidden features of XMC series. XM...en-USTelligent Community 12