WJ-M404I Bluetooth low energy single mode module is a single mode device targeted for low energy sensors and accessories.
WJ-M404I offers all Bluetooth low energy features: radio, stack, profiles and application space for customer applications. The module also provides flexible hardware interfaces to connect sensors.
WJ-M404I can be powered directly with a standard 3V coin cell batteries or pair of AAA batteries in lowest power shutdown mode it consumes only 0.15uA and will wake up in few microseconds.
WJ-M404I transmission distance of 100 meter .(At face to face, free space, 1.2 Meter high from Ground for testing).
Bluetooth IC：TTC2640R2 4*4*0.9mm 32pin IC,Used TI CC2640R2 die chip
The ibeacon WJ-N28 is built base on super low engergy consumption chipset Nordic nrf51802 and comes with 2 CR2450 battery, which insure long power duration. The divice is IP67 dust and waterproof due to its one piece design and the apply of ultrasonic technology in shell assembly.