DC Motor Speed and direction controller project based on L293D H-Bridge and 555 Timer IC. 555 Generate PWM and L293D works as output driver. The 293D provides bidirectional drive current up to 600mA a voltage from 5V to 12V. L293D includes the output clamping diodes for protections.

SPECIFICATIONS

•  Supply 5 to 12 V
• Inhibit facility/enable
• PWM Frequency 5KHz Maximum
• High Noise immunity
• Over temperature protection
• Capable of delivering output current up to 600 mA per channel
• The control/interface lines are accessible with Berg connector
• Header connector for motor and supply connection
• PR1 : Preset Speed Adjust
• SW1 : 3Pin Jumper and Closer for Direction change
• CN1 : DC Motor Supply input 5V to 12V DC
• Dimensions  48.26mm x 36.83mm

SCHEMATIC

PARTS LIST

PHOTOS

VIDEO