IP color video door phone access control system and video intercom, video surveillance, smart home, and security control system four in one.

SIP IP Door Phone
IP access control system
Video intercom hardware PCB design
IoT device hardware circuit design and development ( Z-Wave, Bluetooth BLE )
IoT Gateway firmware development ( Z-wave, Bluetooth )
IoT sensor design and development
IoT cloud host software design ( Linux, MySQL)
IoT smart phone APP customization ( ioS, Android )
Welcome Software/Hardware ODM, and OEM
Building video intercom equipment VBELL brand sales