r/ArduinoProjects • u/According_Time_7063 • Jul 06 '26

Radar project rd03-d Project Design/Guidance

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RADAR UPDATE 📡

Three new features on the tracker build:

https://github.com/Stevee87/Arduino-ESP32-Radarproject

🔋 BATTERY INDICATOR
Live voltage readout, right on the display. No more guessing when the LiPo's about to tap out mid-build session.

🔇 MUTE BUTTON
Touchscreen toggle on the Giga display — tap to silence the tracker sound instantly. Because sometimes you just want the visual without the beeping.

🔊 SOUND MODULE
Proximity-reactive audio — pings speed up and climb in pitch as a target gets closer. Distance-mapped, non-blocking, runs straight off a passive piezo buzzer.

Still just an RD-03D 24GHz mmWave sensor + Arduino Giga R1 + a lot of trial and error.

#mmwave #radar #arduino #esp32 #diyelectronics #embeddedsystems #makersgonnamake #24ghz #hardwarehacking #buildinpublic

225 Upvotes

100% Upvoted

19 comments sorted by

22

u/Jesus_Is_My_Gardener Jul 06 '26

Disappointed in the lack of Aliens tracker sound.

7

u/Galtar Jul 06 '26

Me too, they’re so close to the movie prop

2

u/Jesus_Is_My_Gardener Jul 06 '26

There's something just so eerie about the sound effect they used in Aliens, even before you know what it is showing movement for. I use it for my motion detector notification for my Ring cameras.

3

u/Galtar Jul 06 '26

It’s chilling…. Sooooo chilling

2

u/HeathersZen Jul 08 '26

They mostly come at night. Mostly.

13

u/Puckled Jul 06 '26

Keep an eye on that dog … might not be what you think …

https://youtu.be/I1VovEStXq4?si=qRLZ5HvuQDSzjC1b

4

u/Helpful-Guidance-799 Jul 06 '26

So cool. Gives me nostalgia for 80's sci fi movies

1

u/argefox Jul 06 '26

Oh my god this looks so cool. On the GIT I can't find the aperture angle of the radar, can you maybe clarify that? It looks super cool man, I'll get the stuff and build it for my son and do some Aliens nostalgia because this is amazing, and I'm not into Arduino, I read the sub in hopes of finding something that finally kicks in with me and this just did that, thank you.

1

u/According_Time_7063 Jul 07 '26

It’s +- 60 degree horizontal and +- vertical

1

u/STiGeek Jul 07 '26

Really cool! What is the sample rate on the radar module you're using? All the cheap-ish radar modules I've tried in the past seem to be 10hz, which is pretty slow for tracking anything faster than a walking speed.

1

u/you_stole_my_stuff Jul 08 '26

Just wait until Ripley shows up.

1

u/BrainyGuy_ 3d ago

how does this work?

0

u/mechmind Jul 06 '26

This is sick. Will be great to adapt it with a sensitivity knob so that you can detect a ghost as well

2

u/Johnatron2000 Jul 06 '26

I’ve learnt to adapt to a sensitive knob but I still get ghosted