SKU: SENS-4249
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Holyiot 21033 nRF52832 PIR Motion Sensor Module - BLE 5.0, ARM Cortex-M4F

₹5,759.00 (Inclusive of all taxes)
Out of Stock

The Holyiot 21033 is a compact, ultra-low-power Bluetooth Low Energy (BLE) motion sensor module based on the Nordic Semiconductor nRF52832 SoC, integrating a PIR sensor for wireless motion detection applications compatible with Arduino, Raspberry Pi, ESP32, and other 3.3V microcontroller platforms.

Features

  • Nordic Semiconductor nRF52832 SoC with 32-bit ARM Cortex-M4F CPU, 512kB Flash, 64kB RAM
  • Integrated PIR (Passive Infrared) motion sensor for reliable occupancy detection
  • Ultra-low-power operation (1.7–3.6V) with event-driven API and PPI for extended battery life
  • Supports BLE 5.0, ANT, and 2.4GHz proprietary wireless protocols
  • Compact module dimensions (45mm x 20mm) for space-constrained smart home and IoT designs

Out of stock

Description

The Holyiot 21033 module combines the processing power of the Nordic Semiconductor nRF52832 SoC with a dedicated PIR sensor to create a complete, wireless motion detection solution. The ARM Cortex-M4F processor handles sensor data acquisition, signal processing, and wireless protocol management, enabling intelligent, event-driven operation that minimizes power consumption.

Designed for seamless integration into smart home automation, security systems, and IoT devices, this module outputs motion detection events via BLE 5.0, allowing for easy pairing with gateways, smartphones, or other central controllers. Its robust RF performance, with up to +4 dBm output power and -96 dBm receiver sensitivity, ensures reliable wireless communication in typical indoor environments.

Key Features

  • High-performance Nordic Semiconductor nRF52832 Bluetooth 5.0 SoC with ARM Cortex-M4F core
  • Integrated high-sensitivity PIR sensor for passive infrared motion detection
  • Ultra-low-power architecture optimized for battery-operated IoT endpoints
  • Comprehensive wireless support: Bluetooth Low Energy, ANT, and 2.4GHz proprietary
  • Generous memory for application logic: 512kB Flash and 64kB RAM
  • Wide operating voltage range (1.7V to 3.6V) compatible with single-cell LiPo or coin cells
  • Supports Over-the-Air (OTA) firmware updates for remote maintenance and feature upgrades
  • Compact form factor (45mm x 20mm) with a lightweight design for embedded installations

Applications

  • Smart home occupancy detection for lighting, HVAC, and security automation
  • Wireless battery-powered security and intrusion alarm systems
  • IoT asset tracking and presence monitoring in offices or warehouses
  • Energy management systems for detecting room occupancy to control power usage
  • Wireless sensor network nodes for building automation and smart environments

Technical Specifications

Item TypeMotion Sensor Module
Model NumberHolyiot 21033
Core ChipsetNordic Semiconductor nRF52832 SoC
Processor32-bit ARM Cortex-M4F
Flash Memory512 kB
RAM64 kB
Integrated SensorPIR (Passive Infrared) Motion Sensor
Wireless ProtocolBluetooth Low Energy (BLE) 5.0, ANT, 2.4GHz Proprietary
RF Output PowerUp to +4 dBm
Receiver Sensitivity-96 dBm
Operating Voltage1.7 V – 3.6 V DC
Dimensions (L x W)45 mm x 20 mm
Weight10 g

Frequently Asked Questions

What is the operating voltage range for the Holyiot 21033 module?

The module operates from 1.7V to 3.6V DC. This range makes it compatible with a single 3V coin cell battery (e.g., CR2032) or a single-cell LiPo battery, which is ideal for achieving its ultra-low-power, battery-operated design goals.

How do I communicate with the Holyiot 21033 sensor? What interfaces does it support?

The primary communication interface is Bluetooth Low Energy (BLE) 5.0, enabling wireless connection to smartphones, gateways, or other BLE-enabled controllers. The module also supports the ANT protocol and 2.4GHz proprietary RF. It uses the Nordic Semiconductor SoftDevice and SDK for application development and does not expose a direct wired serial or I2C interface for the sensor data.

Can the firmware on the Holyiot 21033 be updated after deployment?

Yes, the module supports Over-the-Air (OTA) Device Firmware Updates (DFU) via Bluetooth Low Energy. This allows you to remotely update the application firmware to add features, fix bugs, or improve performance without physically accessing the deployed device.

What microcontroller resources are available on the nRF52832 SoC?

The Nordic Semiconductor nRF52832 SoC integrates a 32-bit ARM Cortex-M4F CPU running at 64 MHz, 512 kB of Flash memory for program storage, and 64 kB of RAM. These resources are sufficient for running the BLE stack, the PIR sensor driver, application logic, and supporting OTA updates.

Package Includes

  • 1 x Holyiot 21033 nRF52832 PIR Motion Sensor Module

Additional Information

Weight 0.01 kg
Dimensions 4.5 × 2 cm