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Bluetooth Module Series - PB Series ​

Where to Buy: Alibaba

1. Product Introduction ​

▫️ Overview ​

PB Series

Ai-Thinker Co., Ltd. designs universal Bluetooth modules for the Internet of Things (IoT), featuring powerful functions and wide-ranging applications. These modules can be used in smart lights, smart sockets, smart air conditioners, and other smart home appliances.

▫️ Features ​

  • Supports up to BLE 5.4 protocol
  • Offers half-hole pads, antenna holes, and onboard antennas. Half-hole pads allow antenna routing to the mainboard, while antenna holes support direct soldering of spring antennas onto the module
  • Brightness (duty cycle) adjustable from 5% to 100%, with PWM output frequency at 1KHz
  • Supports communication with ESP32-G Bluetooth gateways for remote control anytime, anywhere
  • Enables secondary development with Windows SDK, fully open-source code, and AT command access to Tmall Genie
  • Supports control via Android/iOS apps and WeChat mini-programs

▫️ Selection Table ​

Type
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Expand to search and pick modules by chip, protocol, flash and more.

Default comparison: modules matching "PB-"
Parameter
🖼️ Product Image
📶 Wireless Protocol
🧩 Chip
🧩 Module Flash Size (Mbits)
📡 Frequency Band (MHz)
📦 Package
📏 Dimensions (L×W×H) (mm)
🌡️ Operating Temp Range (℃)
🧊 Storage Temp Range (℃)
📶 Antenna Type
🔌 Interface
🧷 Available GPIO
⚡ Min Voltage (V)
⚡ Max Voltage (V)
⚡ Typical Voltage (V)
🔋 Min Power Current (mA)
🔋 Rx Current (mA)
🌙 Standby Current (μA)
💤 Deep Sleep Current (μA)
✅ Certifications
📣 Max TX Power (dBm)
〰️ Modulation
📘 Protocol Support

2. Specifications, PCB Footprints & Schematics ​

ModuleDatasheetsPCB FootprintsSchematicsChip Datasheet
PB-03ViewDownload-View
PB-03FViewDownload-View
PB-03MViewDownload-View
PB-04ViewDownload-View
PB-03-KitView-View-
PB-03F-KitView-View-
PB-03M-KitView-View-
PB-04-KitView-View-

Note: Instructions for importing ASCII (.asc) files into AltiumDesigner (AD) — Download

3. Firmware ​

▫️ AT Commands & Firmware ​

ModuleFirmware BuildFirmware DescriptionVersionDownload LinkAT Command Documentation
PB-03 SeriesBuild 1589Combo AT Command Firmwarev1.3.0DownloadAT Instruction Set
PB-03 SeriesBuild 1940Combo AT Command Firmwarev2.0.5DownloadAT Instruction Set
PB-04 SeriesBuild 3599Combo AT Command FirmwareV329DownloadAT Instruction Set

4. Development Guide ​

▫️ PB-03 Series Modules ​

Resource NameLink
SDK Source Code for Secondary Development (V3.1.5)Download
Secondary Development GuideDownload
Firmware Flashing ToolDownload
Firmware Flashing GuideDownload
WeChat Mini Program PB Series BLE Control Source CodeDownload
WeChat Mini Program BLE Protocol Interactive ApplicationDownload

▫️ PB-04 Series Modules ​

Resource NameLink
SDK Source Code for Secondary Development (V3.1.5)Download
Firmware Flashing ToolDownload
Development Board Firmware Flashing GuideView

▫️ FAQ ​

  • Common Questions FAQ:View

5. Test Reports ​

▫️ Hardware Reliability Test Report ​

ModuleReport
PB-03FView
PB-03MView
PB-03View
PB-04View

▫️ Power Consumption Test Report ​

ModuleReport
PB-04View

6. Certification ​

▫️ Certificates ​

Released under the MIT License. Build Time 2026-09-30 17:31:25