DIY Zigbee contact sensor based on CC2530, compatible with Zigbee2MQTT and Home Assistant.

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GitHub page: https://github.com/carletz/Zigbee-End...
View the design here👉: https://oshwlab.com/carletz.slug/zigb...

🔌 DIY Zigbee Door & Window Contact Sensor (CC2530, Battery Powered)

In this video I show a DIY Zigbee contact sensor for doors and windows, based on the Texas Instruments CC2530 Zigbee SoC and powered by a CR2032 coin cell battery.

The device works as a Zigbee End Device, compatible with Zigbee2MQTT, Home Assistant, OpenHAB, and other Zigbee platforms, using the PTVO Zigbee firmware.

This project replicates a commercial Zigbee door/window sensor, focusing on low power consumption, compact PCB design, and full Zigbee 1.2 compatibility.

🧩 Main Features

DIY Zigbee contact sensor
TI CC2530F256 Zigbee SoC
Battery powered (CR2032)
Ultra-low power sleep (~3–4 µA)
Integrated reed switch
Status LED and reset button
Compact PCB (0603 components)
Compatible with Zigbee2MQTT and Home Assistant
Flashable with PTVO firmware

⚙️ Firmware & Zigbee Configuration

The board is fully compatible with the PTVO Zigbee Firmware Generator:
👉 https://ptvo.info

Configured as:

Zigbee End Device
Battery-powered
Reed contact mapped to GPIO input

🔋 Power Consumption

With proper hardware design and PTVO configuration, the device reaches a sleep current of only 3–4 µA, ensuring long battery life with a CR2032 cell.

🔧 Flashing the CC2530

The CC2530 can be programmed using:

CC Debugger or SmartRF04EB
TI SmartRF Flash Programmer
PTVO-generated .hex file

The video shows the full flashing process, wiring, and first Zigbee pairing.

🛠️ Design & Tools

Designed in EasyEDA
Open hardware (MIT License)
Inspired by DIY&Zi projects on OSHWHub / OSHWLab

📂 Project Files

🔗 Schematics, PCB and files available on OSHWLab
(Link in description)

💡 Why This Project?

This project is meant to learn how Zigbee battery devices work, starting from one of the most mature and well-documented Zigbee chips: the CC2530.

Not a commercial product — just DIY, learning, and experimentation.

📬 Author

carletz
January 2026