arduino › connectivity module
generic HC-05 Bluetooth Classic Module
Bluetooth Classic SPP — pairs as a serial port to Android. iOS rejects HC-05; for iPhone projects use BLE (HM-10 or onboard ESP32 BLE).
Specifications
- protocol
- bluetooth_classic_2_1
- interface to mcu
- uart
- voltage v
- 3v3_or_5v
- range m
- 10
- power consumption ma
- 40
Sources
- SparkFun open product catalog · ingest 2026-05-06