This is a high-Quality Acrylic Case for the Raspberry Pi. It is compatible with the Raspberry Pi 3 B, Raspberry Pi 3 B+, Raspberry Pi 2B. It fully encloses the Raspberry Pi Board with openings for all I/O ports – GPIO pins, Camera/PCI Connector, HDMI, Memory Card, USB, and Ethernet Connector. It also has a Cooling Fan Slot to cool down the board from the front side as well as many ventilation ports From backside for good heat dispersion.
3.6/3.7V Dual 18650 Rechargeable Lithium Battery Charger
sim7670c ic is good but it booting is very complication any other metod to connect 4G pius sms read and write
2A Dual L298N Motor Driver Module with PWM Control






