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
3D Printer Power Controller Module for Heated Bed
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The 3D printer power controller module is a power expansion board that features a one of a kind snow flak heat sink design for the best heat dissipation possible. This power controller module for 3D printers is designed based on power mosfet and can be used in both lerdge motherboard and other 3d printer motherboards.