<b>Kindly Reminder: </b><br><br>Used to communicating between the FSESC and FSESC Tool (mobile) over BLE. <br><br>Note that the UART port on the FSESC must be enabled with a baud rate of 115200 for this to work. The UART port on FSESC can work only under 115200 baud.<br><br>Operating voltage: 2.0V ~ 12V Onboard Chip: NRF51822<br>Actual use distance: The distance to communicate with FSESC is about 15 meters<br>Frequency range: 2.4GHz<br>2.4 GHz multiprotololl RF receiver<br>ARM Cortex-M0 32 bit processor<br>256kB flash & 16kB RAM<br>PCB size：27mm*13mm<br>2.0mm seven-pin four-wire connector length：90mm<br>Antenna length：145mm<br>net weight：3.5g