JDY-31 SPP-C Bluetooth Module


In stock

SKU: 1794231
  1. Working frequency band: 2.4GHZ
  2. Communication interface: UART
  3. Operating voltage: 1.8-3.6V (3.3V recommended)
  4. Working temperature: -40 ° C – 80 ° C
  5. Antenna: Built-in PCB antenna
  6. Transmission distance: 30 meters

 129.00 (Incl. GST)

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1 Year Warranty
15 Days Warranty
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Brand: Generic
Category: Bluetooth and NRF Modules

The JDY-31 SPP-C module is a Bluetooth serial pass-through module based on the Bluetooth 2.0 protocol. It’s commonly used in electronics projects that require Bluetooth communication between devices. The module allows for wireless serial communication between devices, enabling data transmission over Bluetooth. It typically operates in transparent mode, meaning it passes data between devices without interpreting or modifying it.

It’s important to note that the JDY-31 module uses an older Bluetooth version (2.0), which might have limitations compared to newer versions in terms of data transfer speed, range, and compatibility with newer Bluetooth-enabled devices. There might be newer versions or alternatives available if you’re looking for more advanced Bluetooth functionalities.

Note: The actual product may vary in slight variation in color and components with the image shown depending upon quantity availability. Refer to datasheet in the ATTACHMENTS section for more info. regd. the product.


  1. Bluetooth Version: Bluetooth 2.0
  2. Serial Pass-through: Allows for transparent serial data transmission between devices.
  3. Low Power Consumption: Designed for efficiency in power usage.
  4. Ease of Use: Simple to integrate into projects requiring Bluetooth communication.
  5. Compact Size: Small form factor for easy integration into devices.
  6. Cost-Effective: Generally an affordable option for Bluetooth-enabled projects.
  7. Standard AT Commands: Supports standard AT commands for configuration and control.

Package Includes:

1 x JDY-31 SPP-C Bluetooth Module

SKU: 1794231 Category:

JDY-31 SPP-C Bluetooth Module



Communication Interface


Operating Voltage (V)

1.8-3.6V (3.3V recommended)

Operating Temperature (°C)

-40 ° C – 80 ° C


Built-in PCB antenna

Transmission distance

30 meters

Master-slave support


Bluetooth Version




Operating Current (mA)


Current after BLE connection

8db (maximum)

Receiver Sensitivity


Weight (g):


Shipping Weight 0.01 kg
Shipping Dimensions 4 × 3 × 2 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China