>> This hasn't >> seen development activity in 5 years. > > Please see https://github.com/virtualsquare/picotcp But the TCP/IPV4 standard didn't change, either. >> lwIP on the other hand still sees active development. > > I agree with you. It looks like lwIP is more popular than picotcp. Sure. It's older and it has a loyal (or addicted) user base and commercial support. Or it just needs more commits because it'w worse and full of bugs. As far as I know, lwIP is horrible code, difficult to integrate and maintain, while picotcp is designed in the right way (although I admit I only looked at the former, about picotcp I only talked with the main author without looking at the code). I'd love to add mqtt to my microcontroller projects, where I have udp but no tcp yet, and I would never rely on lwIP. That's just a personal opinion, but I'd better not rely on the date of last commit to pick or not pick a library. Regards /alessandro
