ESPHome
Home Assistant
ld2450
Sensor

Apollo Automation

MTR-1 Multi-Target Radar Multisensor (LD2450)

Regular price: $39.99
Sale price: $39.99
Regular price

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Introducing the Apollo MTR-1 for ESPHome, a multi target radar multisensor. The MTR-1 packs a diverse array of sensors in an affordable and compact package. With dimensions of 49mm by 32mm and a profile of just 15mm, this sensor can seamlessly integrate into any space. Multiple targets, zones, target coordinates, RGB, buzzer, LUX/UV, CO2 (optional) are all things the MTR-1 can measure.

Powered via USB-C and a standard wall plug, the device uses WIFI to connect to ESPHome on your Home Assistant install.

We proudly offer the software and CAD drawings to the community, encouraging all to modify and improve upon them. For more information, visit our GitHub or wiki. We're eager to see the innovative adaptations you come up with. Join our Discord community to share your unique remakes, or to engage in discussions about future products.

MTR-1 Back Male USB-C Adapter: Some wall plugs and receptacles with smart charging do not work

Style:

Base With CO2

Product variants:

Use the LD2450 mmWave to instantly detect when someone walks into the room and turn on the lights. The MTR-1 also has multi target and multi zone. You will not only know when someone comes into the room, you'll know where they are.

The mmWave location function allows you to know if someone is at the stove, sink, or refrigerator in your kitchen. Is someone on the couch, or sitting in the chair?

The mmWave can also be placed under your bed to determine if someone is in the bed or not. This can make for great morning or alarm automations.The RGB led is great for notifications. Trash night? Turn the LED green. Mail in the mailbox? Turn the LED blue.

The piezo buzzer is great for notifications you don't want to miss (also good for party tricks playing songs). Has your CO2 level risen to very high levels? Beep the sensor to let you know to open a window. Did your front door just open? Beep once as a notification.

Use the UV sensor to let you know how much sun is coming through the window. Or use the LUX sensor to only turn on the lights if it is dark in the room.

The optional CO2 sensor is very eye opening. Many people do not know the air in their office or bedroom reaches CO2 levels that have an affect on you. From poor sleep at night, drowsiness in the office, and brain fog can all be caused by high CO2. This sensor will let you know if your levels are getting too high and you need to turn on the air circulation or open a window.

Assembled sensor with case
Apollo sticker

We hope to build a community on our Discord and continue delivering products the community wants. Our team will be there to help answer any questions, suggestions, or problems you might have.

Join our Discord.

Please see our Apollo Wiki for more information.

Product Details

Details

mmWave Radar Sensor (HLK-ld2450)

Max Distance: 6m (19.6 ft)

Max Number Of Targets: 3

Number of Zones: 3

LUX and UV Sensor (LTR-390UV)

Temperature / Pressure Sensor (DPS310)

Provides accurate readings of temperature and pressure. The pressure enhances the readings from the CO2 sensor. Note: The ESP32-C3 in constant WiFi connection generates significant heat; you might need to adjust the offset based on your setup and the temperature won't be as good as a dedicated sensor with less heat build up.

C02 Sensor (Optional SCD-40)

This optional add-on brings a CO2 sensor to the package, which comes pre-calibrated and ready to use. (This device does not meet the requirements for CO2 safety monitoring per the NBIC, NFPA, or IFC)

Bluetooth Tracker(ESP32-C3-Mini) - YAML Config Required

Track Bluetooth devices in your house, letting you know which devices are closest to the sensor. You will need to know the MAC of the Bluetooth devices you want to track.

Find your phone if you left it in the office or the bedroom.

Know who just walked into the room.

Track a beacon attached to your dog's collar.

RGB Pixel

RGB neopixel

Piezo Buzzer

Emits different beep patterns based on various alerts.

Related Products

Looking into your case, I can see our support team worked closely with you and even sent a replacement MTR-1 to rule out any hardware issues. The LD2450 radar inside the MTR-1 is widely used in mmWave devices and is generally very reliable. From our review, it appears that the challenges you’re experiencing are related to your Homey integration and possibly environmental factors.

mmWave sensors can be sensitive to certain conditions such as moving curtains, HVAC air currents, or fans in the room, which may explain the gaps you’ve seen in detection. With most setups, once these variables are addressed, the sensor performs consistently and accurately.

We do appreciate you taking the time to share your experience, and we’ll keep working to make setup and integration as smooth as possible. If you’d like to troubleshoot further with us directly, we’d be happy to help.

Cool sensor, 3D printed case needs work

I love the vision and the sensors are pretty powerful. I've enjoyed playing with them. I did run into issues with signals reflecting off a back wall, but that was fixed by angling the sensors down slightly. One thing that I was frustrated by is that the ball and socket stand option doesn't have enough clearance behind it to wall mount it with the provided USB-C cable. I ended up buying some 90 degree USB-C adapters that worked, but it took extra time. I also appreciate that 3D printing is far cheaper for a startup than injection molding, but I found the case difficult to put on. And then, adjusting the ball and socket would put force on the back panel and sometimes pull it off, so I had to hold the back panel in place while adjusting the ball and socket. I think the sensor is really great and I love supporting open source hardware. But I'd encourage you to rework the wall mount option because it really detracted form my experience setting up the sensors. Lastly, I think the product page would benefit from clearer pictures of exactly which addons are which. It's hard to tell looking at the website. Overall though, great product. Thanks!

Reliably accurate

Quite a lot packed into a small device. Very accurate target tracking. I use it in the front TV room to control lights based on occupancy. Very handy when we go to bed at different times.

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MTR-1 Multi-Target Radar Multisensor (LD2450)

Product Details

Details

mmWave Radar Sensor (HLK-ld2450)

LUX and UV Sensor (LTR-390UV)

Temperature / Pressure Sensor (DPS310)

C02 Sensor (Optional SCD-40)

Bluetooth Tracker(ESP32-C3-Mini) - YAML Config Required

RGB Pixel

Piezo Buzzer

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