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TDA2822M amplifier board 2.0 stereo DC amplifier board portable miniature radio amplifier board

DC motor speed regulator 12V24V36V48V high-power drive module PWM controller 20A regulator

24V12V stepper motor drive simple speed regulation forward and reverse controller module PWM pulse signal generator

Volume potentiometer dual 50k adapter board with 300mm shielded wire DIY audio amplifier module accessories

XY-PWM square wave rectangular wave signal generator with adjustable PWM pulse frequency and duty cycle module with shell

LM358 weak signal amplifier voltage amplifier two-stage operational amplifier module single power signal collector

12V battery anti discharge and anti overvoltage control module under voltage automatic charging lithium battery protector board

XH-M314 Ultra Clear Bluetooth Digital Amplifier Board TPA3118 Dual 45W Audio Amplification Module AUX Decoding

Battery charging and discharging module PWM pulse frequency duty cycle adjustable module square wave rectangular wave signal generator XY-PWM...

Battery charging and discharging module with integrated voltmeter, undervoltage and overvoltage protection, timed charging and discharging with communication function...

18650 battery holder V3 development board compatible with Raspberry Pi Raspberry Pi 3 overcharge protection 5V

18650 battery holder V3 development board compatible with Raspberry Pi Raspberry Pi 3 overcharge protection 5V