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Hardware Description

STICKER is a compact IoT device built on the STM32WL System-on-Chip with an integrated LoRa radio and ARM Cortex-M4F core.
It is powered by two AA batteries, with battery voltage monitoring and efficient power management (boost converter and LDO).

The device includes NFC memory and antenna for simple configuration, even without power (energy harvesting).

It features a rich set of built-in sensors:

  • Temperature and humidity (SHT43)
  • Light intensity (OPT3001)
  • Atmospheric pressure (MPL3115A2)
  • PIR motion (PYD1698)
  • 3-axis accelerometer (LIS2DH12)
  • Dual Hall-effect door opening detector (A1266)

For flexibility, there is also:

  • 1-Wire bus master for external sensors
  • Terminal block for external inputs

Device status is indicated by a multi-color LED (R/G/Y) and communication is handled via an internal 868/915 MHz antenna.

Block Diagram​


Overview​

Sticker Clime - Enclosure, Mainboard, and Battery Holder​

Sticker Clime

Sticker Input - Enclosure, Mainboard, and Battery Holder​

Sticker Input

Sticker Motion - Enclosure, Mainboard, and Battery Holder​

Sticker Motion

Schematics​

MCU​

Sticker - MCU

Antenna​

Sticker - Antenna

Sensors​

Sticker - Sensors

NFC​

Sticker - NFC

Power​

Sticker - Power

Enclosures​

ParameterValue
Enclosure materialABS
Dimension91 × 36.5 × 33.3 mm

Sticker - Catalog