# Rd-03D mmWave Multi-Human Position Sensor (CE10172) **URL:** \ **Category:** Product Questions\ **Created:** [13 June 2025 10:45 UTC](https://forum.core-electronics.com.au/t/rd-03d-mmwave-multi-human-position-sensor-ce10172/22671 "2025-06-13T10:45:06Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Core](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/core/32/57_2.png) [@Core](https://forum.core-electronics.com.au/u/Core)\ **Post date:** [13 June 2025 10:45 UTC](https://forum.core-electronics.com.au/t/rd-03d-mmwave-multi-human-position-sensor-ce10172/22671/1 "2025-06-13T10:45:06Z")
This is a placeholder topic for [**“Rd-03D mmWave Multi-Human Position Sensor”**](https://core-electronics.com.au/mmwave-sensor-rd03d-presence-detection-sensor.html) comments. ![](https://core-electronics.com.au/media/catalog/product/cache/5ba536955e3e815f4e908e49c1dd8155/c/e/ce10172-mmwave-person-detection-module-reverse-side.jpg) Track people’s position in smart home or robotics projects with this handy module! [**Read more**](https://core-electronics.com.au/mmwave-sensor-rd03d-presence-detection-sensor.html) ---
**Author:** ![Paul297164](https://avatars.discourse-cdn.com/v4/letter/p/47e85d/32.png) [@Paul297164](https://forum.core-electronics.com.au/u/Paul297164)\ **Post date:** [13 June 2025 10:45 UTC](https://forum.core-electronics.com.au/t/rd-03d-mmwave-multi-human-position-sensor-ce10172/22671/2 "2025-06-13T10:45:28Z")
For Rd-03D. I am looking to house this outside. Firstly, do you have containers suitable? Can the waves go through glass or does it nothing in front of sensors? Thanks ---
**Author:** ![Paul297164](https://avatars.discourse-cdn.com/v4/letter/p/47e85d/32.png) [@Paul297164](https://forum.core-electronics.com.au/u/Paul297164)\ **Post date:** [13 June 2025 10:46 UTC](https://forum.core-electronics.com.au/t/rd-03d-mmwave-multi-human-position-sensor-ce10172/22671/3 "2025-06-13T10:46:30Z")
Do you have any housing for the Rd-03D that is suitable outside? ---
**Author:** ![Dan](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/dan/32/10815_2.png) [@Dan](https://forum.core-electronics.com.au/u/Dan)\ **Post date:** [16 June 2025 01:27 UTC](https://forum.core-electronics.com.au/t/rd-03d-mmwave-multi-human-position-sensor-ce10172/22671/4 "2025-06-16T01:27:13Z")
Hi @Paul297164, Welcome to the forum! The [Rd-03D mmWave Multi-Human Position Sensor | Buy in Australia | CE10172 | Core Electronics](https://core-electronics.com.au/mmwave-sensor-rd03d-presence-detection-sensor.html) will be able to penetrate anything that isn’t conductive so glass will be no issue. For an outdoor housing we stock [Plastic Project Box Enclosure Waterproof Clear Cover - 168 x 120 x 55 mm | Buy in Australia | FIT0723 | DFRobot | Core Electronics](https://core-electronics.com.au/plastic-project-box-enclosure-waterproof-clear-cover-6-61x4-72x-2-17-inch.html) that will be able to have the signal penerate the cover as well as keeping it dry. ---
**Author:** ![Donald23173](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/donald23173/32/12687_2.png) [@Donald23173](https://forum.core-electronics.com.au/u/Donald23173)\ **Post date:** [9 August 2025 07:07 UTC](https://forum.core-electronics.com.au/t/rd-03d-mmwave-multi-human-position-sensor-ce10172/22671/5 "2025-08-09T07:07:07Z")
Is this Rd-03D the same as [HLK-LD2450](https://www.hlktech.net/index.php?id=1157) ? If so, it is supported by Home Assistant via [ESPHome](https://esphome.io/components/sensor/ld2450) If not, you might like to see if there is any information on connecting, programming and using it - because the linked datasheet looked to be all about the hardware specs. ---
**Author:** ![Jaryd](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/jaryd/32/8778_2.png) [@Jaryd](https://forum.core-electronics.com.au/u/Jaryd)\ **Post date:** [10 August 2025 23:58 UTC](https://forum.core-electronics.com.au/t/rd-03d-mmwave-multi-human-position-sensor-ce10172/22671/6 "2025-08-10T23:58:17Z")
Hey @Donald23173, I had a look at the LD2450, and it looks pretty darn similar. From the board layout, to how it operates. I had a brief look at the UART output format and from what I can remeber, it appears to be the same or very similar. I guess that it could be a drop-in replacement, but it would need to be tested so I can’t say with 100% certainty. The deep dive into the UART format is not in our write-up, but you can find some in [this guide](https://www.electroniclinic.com/rd-03d-mmwave-radar-multi-human-tracking-with-distance-speed-positioning/). If you do get it to work, let us know! Curious if it will! ---
**Author:** ![Donald23173](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/donald23173/32/12687_2.png) [@Donald23173](https://forum.core-electronics.com.au/u/Donald23173)\ **Post date:** [30 September 2026 11:04 UTC](https://forum.core-electronics.com.au/t/rd-03d-mmwave-multi-human-position-sensor-ce10172/22671/7 "2026-09-30T11:04:45Z")
> [@Donald23173](#): > > Is this Rd-03D the same as [HLK-LD2450](https://www.hlktech.net/index.php?id=1157) ? > > If so, it is supported by Home Assistant via [ESPHome](https://esphome.io/components/sensor/ld2450) As Jaryd says, it _looks_ pretty much identical. I use [ESPHome](https://esphome.io/) firmware generator, and I found [comments in the ESPHome forum](https://community.home-assistant.io/t/hlk-ld2450-initial-experiments-to-connect-to-homeassistant/578878/470) (dated Jan-2024) > [@wojciech6789](#): > > After an extensive search, I’ve discovered that many sensors, including HiLink and AiThinker, seem to be clones of the S5KM312CL, which itself might be a clone of another sensor – it’s a complex maze. > [@wojciech6789](#): > > Sorry I am doing packet parsing in C++ or JS, never used RD-03 with esphome, But I guess LD2450 component should work out of box, as my C++ parsing is exactly the same for both, with less config options for RD-03. Which suggests that the same firmware might work for either board. * * * Today I see that there are ESPHome components for both LD2450 and RD-03D. Both return position details for up to 3 targets. However the ESPHome LD2450 component has a lot more controls - adding 3 zones. Honestly configuration looks so much more complicated - but we don’t have to configure all the options that we don’t need. | RD-03D | LD2450 | | --- | --- | | Binary sensor for has-target | Binary sensor for has-target | | Binary sensors for has\_moving\_target and has\_still\_target | Binary sensors for target1, target2 and target3 | | for each target\_N: integer sensors for x, y, speed, angle, distance, resolution | for each target\_N: sensors for x, y, speed, angle, distance, resolution | | | for each zone\_N: target\_count, still\_target\_count, moving\_target\_count | | | Switches for: bluetooth and multi\_target | | | Integer number for: presence\_timeout and for each zone: x1, y1, x2 and x2 | | | Button for: factory\_reset and restart | | | Text sensors for: version, mac\_address, and for each target: direction | | | Select for: baud-rate and zone\_type | I have 3 nightlight type uses, so I might try both the AiThinker RD-03D and HLKtech LD2450 (including RD03D with the LD2450 component). Worst case is that the bedroom unit only needs to see feet moving from under the bed 😉 Don’t hold your breath though … I am an A-grade procrastinator so it could take quite a while before ready to announce my results. ---
**Author:** ![Donald23173](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/donald23173/32/12687_2.png) [@Donald23173](https://forum.core-electronics.com.au/u/Donald23173)\ **Post date:** [15 October 2026 06:34 UTC](https://forum.core-electronics.com.au/t/rd-03d-mmwave-multi-human-position-sensor-ce10172/22671/8 "2026-10-15T06:34:12Z")
I haven’t tried the RD-03D yet, but I was impressed with all the positional information available from the LD2450’s ESPHome component - great to track 3 persons within the range … but overkill for my simple night-light application. Comparing all the many LD24xx models, I’m thinking LD2410C might be best for a simple night-light. I already bought a LD2410B - whose specs seemed ideal until I saw how tiny it is. Small will be good for a night-light … except that I don’t trust my soldering for attaching such close small pins.