HALJIA HM-10 Bluetooth 4.0 UART Serial Module with 6 PIN Base Board with Logic Level Conversion Compatible with Arduino UNO R3 Mega 2560

• This is a Bluetooth 4.0 module with 4pin base board that can support Apple IOS5 /IOS6 system.But does not support the version is lower than the android 4.3 phone(it don't support classic bluetooth 2.0 spp features).
• Bluetooth 4.0 module. BT V4 module interface and single chip microcomputer connection only need 4 wires: 5V (VCC) GND TXD RXD
• With internal logic level conversion circuit. No external conversion of 5V level to 3.3V level.
• Power input port with anti-reverse circuit. To avoid accidental power supply plug-in, causing module burnout.
• Through this base board, leads to VCC, GND, TX, RX. You can be very convenient to connect to your arduino project.

Features: 1. With internal logic level conversion circuit. No external conversion of 5V level to 3.3V level. 2. The power input port has anti-reverse circuit. To avoid accidental power supply plug-in, causing module burnout. 3. Bluetooth 4.0 module. BT V4 module interface and single chip microcomputer connection only need 4 wires: 5V (VCC) GND TXD RXD. 4. Support Apple IOS5 /IOS6 system. Use on IOS: 1. IOS searches for Bluetooth, not in Settings-Bluetooth, search and pair Bluetooth. (Only Bluetooth headsets can be connected in the IOS settings. Wireless data devices cannot be found.) 2. Search the LightBlue software in the appstore in IOS, then open the LightBlue software to search for HM-10, and pair and test to send and receive! HM-10 module configuration requires USB to TTL device. No wireless pairing configuration! (Because after wireless pairing, the data is transparently transmitted.) 1. The LED flashes slowly when it is not paired with the remote device. At this time, you can use the AT command to configure the module. 2. The HM-10 module can only recognize all uppercase AT commands, and does not support mixed lowercase and uppercase. 3. The factory default baud rate is 9600 8n1 Slave settings: AT+BAUD0 //9600 will take effect after power off and restart after setting AT+NAMEAC AT+PASS000000 //Full 6 digits must be entered AT+TYPE1 AT+ROLE0 Host settings: AT+BAUD0 //9600 will take effect after power off and restart after setting AT+NAMEAC AT+PASS000000 //Full 6 digits must be entered AT+TYPE1 AT+ROLE1 Size: 47 × 16.6 × 7.3 mm Weight：3.5g Packing List: 1 × HM-10 Bluetooth 4.0 UART Serial Module