Product Quantity Subtotal Mini MP1584 DC-DC 3A Adjustable Buck Module $0.46 Mini MP1584 DC-DC 3A Adjustable Buck Module quantity × $0.46 Mini MP1584 DC-DC 3A Adjustable Buck Module quantity $0.46 XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module $1.49 XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module quantity × $1.49 XY-LPWM Signal Generator PWM Pulse Frequency Duty Cycle Adjustable Module LCD Display Module quantity $1.49 0.96 Inch I2C/IIC 4pin OLED Display Module BLUE $1.40 0.96 Inch I2C/IIC 4pin OLED Display Module BLUE quantity × $1.40 0.96 Inch I2C/IIC 4pin OLED Display Module BLUE quantity $1.40 Mini MP1584 DC-DC 3A Adjustable Buck Module $0.31 Mini MP1584 DC-DC 3A Adjustable Buck Module quantity × $0.31 Mini MP1584 DC-DC 3A Adjustable Buck Module quantity $0.31 VS1053 MP3 Recording Module Development Board with Onboard Recording Function $6.23 VS1053 MP3 Recording Module Development Board with Onboard Recording Function quantity × $6.23 VS1053 MP3 Recording Module Development Board with Onboard Recording Function quantity $6.23 Coupon: Apply coupon Update cart Cart totals Subtotal $9.89 Total $9.89 — OR — Proceed to checkout