JDY-33 Dual-Mode Bluetooth 3.0 SPP / BLE 4.2 Slave Module
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Prices updated: 13 Oct 2026
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About this product
JDY-33 is a dual-mode Bluetooth slave module supporting Bluetooth 3.0 SPP and BLE 4.2 for transparent serial data transfer. It is compatible with HC-05 and HC-06 modules and works with Windows, Linux, Android and iOS devices, suiting wireless serial links in student and hobby projects.
Specifications
- Bluetooth version
- Bluetooth 3.0 SPP + BLE 4.2
- Operating frequency
- 2.4 GHz
- Modulation
- GFSK
- Maximum transmission distance
- 30 m
- Maximum transmit power
- 6 dB
- Role
- Slave
- Compatibility
- HC-05, HC-06
Frequently asked questions
How do I wire it to an Arduino or other microcontroller?
Connect module TX to the MCU RX pin, module RX to the MCU TX pin, and share GND. Check the module's logic voltage before connecting. If the MCU is 5V, the MCU TX line driving the module RX pin may need a level shifter or voltage divider.
Can I change the device name or baud rate?
Yes. The module supports changing the device name and baud rate through AT commands. Enter AT command mode as described in the module's datasheet before sending commands.
