Currently the risks are getting ToF measurements that are not accurate enough, and integration of individual parts that we have been working on.
We’ve committed to using ESP32 for our ToF measurement, as the measurement from PicoScenes would not be accurate enough. Additionally, since PicoScenes only runs on a specific linux kernel version with a specific ubuntu version, we are not going to use Raspberry Pi. The changes are documented within the Design Report. As mentioned in the previous status report, this change would cost us about 1 week of implementation time.
Since we decided on using ESP32, we will have to learn to use its API, but its documentation is fairly well done so it would not be a significant risk.