This is the HC-SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit.
Get Details: https://www.campuscomponent.co....m/products/hc-se-793

Integrated high efficient isolated DC-DC converter
High baud rate of up to 115200bps
Two-port isolation test voltage(2.5kVDC)
Operating ambient temperature range: -40°C to +85°C
The bus supports maximum 32 nodes
Set isolation and ESD bus protection in one
Automatic send and receive data function
Get Details: https://www.campuscomponent.co....m/products/d3af40789

This GPS/GLONASS GNSS Antenna is designed for applications that require high positioning accuracy by combining signals from GPS, GLONASS, systems. The tiny size of this antenna allows it to be used in every space-restricted environments. With a 3-meter long cable, one can use this antenna to enhance the GPS Signals in an indoor project with Raspberry Pi HAT or Arduino Shield.

Get Details: https://www.campuscomponent.co....m/products/gps-glonu