- Chipset based on CC2541
- Bluetooth Class 2
- Industrial level Bluetooth module SPP
- Flash 256Kb
- Integrated chip antenna
- Power supply: + 3.3 VDC 50 mA
- Working temperature: -5 C to + 60 C
- Operating frequency: 2.4 GHz ISM Band
- Modulation method: GFSK (Gaussian Frequency Shift keying)
- 40 channels, 2MHz, 3 fixed transmission channels, 37 automatic frequency adaptation skipping data channels;
- Power adjustment output (-23dBm ~ 6dBm); command AT +
- Transfer rate: asynchronous: 6 kbps synchronous: 6kbps
- Security features: authentication and encryption
- Power consumption: automatic sleep mode, standby current 90uA, 8.5 mA transfer
- PCB size: 37x16mm
- Default baud rate is 9600
- Default PIN is 000000
- AT commands require end of line (\ r \ n)
- Firmware is reported as Firmware V3.0.6, Bluetooth V4.0 LE
- Firmware is from Bolutek
- AT + HELP - list of commands available
- Modules report themselves as BT05
- Status pin is normally LOW and HIGH when device is connected
- Pin EN does not seem to do anything div >
Useful links for Arduino / Raspberry programming and projects with Arduino / Raspberry boards:
User manual for the BLE wireless module AT-09 Bluetooth 4.0 CC2541
- Wiring the AT-09 Bluetooth 4.0 CC2541 IOS BLE wireless module with the UNO module
Application with a DHT22 temperature / humidity sensor
- Wiring the Arduino HC-06 wireless module with a DHT22 / AM2302 temperature sensor div
