Features: 1. Please Choose Board Suitable For Your Motor And Perform The Hard Drive Motor Drive Test. 2. Board Can Drive The Motor Better And More Efficiently 3. The Size Is Relatively Small And Suitable For Placement In Diy Electronic Devices. 4. All Control Terminals Are Compatible With Ttl Levels 5. Can Be Directly Controlled By Microcontroller, Etc. Description: 1. Product name: Brushless Hallless Motor Driver Module 2. Working voltage: DC 7.5V--18V 3. Drive current: 3A 4. Speed regulating voltage: 0.25V--5V 5. Speed range: 5%--100% 6. Steering control: Yes 7. Soft commutation function: Yes 8. Interface: The input terminal is HX25003-4A; the output terminal is HX25003-5A size: 4.5cm x 3.2cm x 1.1cm Material: PCB colour: As shown Package Contents: 1 x Driver Board Module 1 x Potentiometer 1 x Connecting Wire Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.