Kids OK with adultESP32Level 2/3
Intruder Alarm with Phone Alert
Arm it from your phone. If the radar senses someone, the buzzer sounds and an INTRUDER ALERT pops up on your phone.
Kids OK, with an adult
DIY project. Children must build this only with an adult (16+ years) beside them at all times. Not suitable for children under 8 years.
Strictly follow the description given with this video.
Video
The video link will be added here soon.
How it works
- Send /arm to the chat bot to switch the alarm on, /disarm to switch it off.
- When armed, the mmWave radar watches the room.
- Someone present: the buzzer on D26 sounds.
- The ESP32 sends a notification over Wi-Fi to your phone.
Parts you need
- mmWave radar sensor (24 GHz presence)× 1Buy
- ESP32 development board (30-pin)× 1Buy
- 3.3V active buzzer× 1Buy
- USB 5V adapter× 1Buy
Kit for this projectPrice on request
Get the kitWiring
PowerGroundSignal
| # | From | Connect to |
|---|---|---|
| 1 Power | Radar V | ESP32 3V3 |
| 2 Ground | Radar G | ESP32 GND |
| 3 Signal | Radar IO | ESP32 D23 |
| 4 Signal | Buzzer + | ESP32 D26 |
| 5 Ground | Buzzer − | ESP32 GND |
3D print files
This project has no 3D-printed parts.
Code
The tested Arduino / ESP32 code for this project will be posted here, ready to copy.