Super cool project! I’ve been following all these DIY mmWave projects for the past couple weeks and wanted to try my hand at building one myself. I am curious if anyone has compiled a list of modules with pros and cons? I want to buy one to mess around. Any suggestions?
I’m definitely not qualified to make the list, but from reading here’s what I’ve come to understand:
- DFRobot SEN0395 ($29)
- Simple GPIO interface and easy to setup for boolean information
- Super sensitive
- Successfully used in mmWave Presence Detection
- RFBeam K-LD7 ($86)
- Requires custom UART interface
- More capable module with speed, angle, and tracking capabilities
- Used in this project
- Performance still to be seen
- RFBeam K-LD2 ($53)
- Simple GPIO interface limits the usability of its extra features (speed, area, etc)
- SeeedStudio Human Stationary Presence Module ($20)
- Usable but has issues with seeing through walls
- Doesn’t seem to work well (post)
Other sensors that haven’t been tried:
- Jorjin MM5D91
- Datasheet seems promising
- However, it needs software to reconfigure (no documented UART protocol for this)
- SeeedStudio 60GHz mmWave Radar Sensor - Fall Detection Module Pro
- Configurable max range
- Claimed to be more accurate