distance: 40,00 m, Answer type: 0x85 (typical) Expected express legacy scan descriptor data type 0x82, got 0x85. Unable to start scan

Ah that's good to know. I'm not sure how different the protocol is yet. But my lidar c1 will show up next week.

@ DJ Sures  is the protocol for the A1 skill in a .dll (just to learn) and thanks for your support

The DLL is a compiled binary from code so that won't be much use. The protocol documents describe the commands. Here's the one for the A1: https://bucket-download.slamtec.com/6494fd238cf5e0d881f56d914c6d1f355c0f582a/LR001_SLAMTEC_rplidar_protocol_v2.4_en.pdf

Here you go: https://synthiam.com/Support/Skills/Navigation/RPLidar?id=20980

It works with every Slamtec lidar now. For example, here it is working with my A1 and C1 at the same time...

Thanks DJ Sures your great Thank you for the wonderful Christmas gift, one can only be impressed.

I have to say, the RPLidar c1 is quite fantastic. They came a long way from the A1 with this form factor and performance. I like how it is self-contained and keeps the dust/elements out of it. No longer is there a spinning rubber band! The quality of the scans are really good. I'm going to switch my robots to the c1 for sure.

C1  for sure. It’s very robust and professional