We've been so obsessed with making low-power sensors for a while (Zigbee, BLE) that we've paused for a while to make a new WIFI series of sensors, but we wanted to give those millimetre-wave sensor enthusiasts (we're really super fond of the HA community) a new gift, and here's a new attempt, which is the HLK-LD2412, a newly launched HLK sensor.
The HLK-LD2412 has some nice enhancements to the LD2410 (we use it for a range of our radars, such as the 1U, 1WX, 1MS, etc.):
- Better antenna design
- Larger coverage area
- Better static capability
- The included light module is also better at performing in low light.
- Up to 12 gate detections means you can fine-tune the sensitivity of certain gates by filtering them.
- With three resolutions (0.25m, 0.5m, 0.75m), compared to the LD2410, there are 0.5m more.
In our tests, we also found some shortcomings:
- The shortest detection distance showed a large numerical error, and the HLK developers explained that the ranging aspect of the radar was weakened in favour of enhanced overall radar detection.
This is a new adventure and we invite more people to join it. We have assembled the Human Sensor L12 with the ESP32-C3 and the LD2412, we have tweaked the firmware, and through the co-operation with the HLK developers and after almost 2 months of internal testing, we now have the opportunity to invite people to join this new adventure.
As it is a yellow image used for the design, the final product will be a consistent white colour and will include the data cable and double sided tape attachment.
We are ready to welcome the first adventurers with a 15% discount to try out this new radar, which will be our 4500th DIY product.