JDY-25M Bluetooth function supports master-slave transparent transmission, for iBeacon, BLE probe, for iBeacon detection, MESH networking, and the maximum number of MESH networking supports 65280 device networking, adopts multi-wireless anti-collision technology, and the networking communication speed supports 50mS transmission 12-byte data, a single module supports router nodes and terminal nodes, router nodes support data relay (low power consumption is not supported), terminal nodes support low power consumption (automatic sleep after key- wake-up sending data). Support the transparent transmission of APP data with mobile phones (for IOS, ANDROID) (working current is about 1mA) Support module and module master-slave high-speed transparent transmission Support for iBeacon function (ultra low power consumption) Support for iBeacon probe function Support BLE Bluetooth probe function Support multi-connected slave mode, multi-connected slaves can be connected with multiple mobile phones, and transparent transmission at the same time Support Bluetooth MESH (network serial data communication, output IO control, input button control) networking MESH network sending data supports response and no response communication Networking remote control Multi-connected master-slave hybrid connection (the master is connected to the slave at the same time, and the slave is connected to the mobile phone at the same time, working at the same time) Working voltage: 1.9-3.6V Working temperature: -40-85C Maximum transmit power: +4dbm Communication distance: 80m Bluetooth-compatible version: BLE5.0 Antenna: PCB onboard antenna Antenna gain: -3dbi Receiving sensitivity: -96dbm Communication interface: UART Color: Blue Material: PCB Package Contents: 1 * Bluetooth Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.