Name: Single-axis tracking board Voltage: 5-5.5VDC Current: less than 1.5A Interface: Power + - Motor M Principle: Uses a shield on the photoresistor. When light irradiates the shield and creates a shadow, a difference in photosensitivity between the two sides is detected, which controls the motor to find the balance point, aligning it to the center. Power supply requires a 5-5.5V DC input with sufficient current up to 1.5A. The motor is a geared type; slower speed is recommended. The board is compatible with JGY370 6V motor. At 5V power supply, the motor operates at a stable speed under no load. If the motor speed is too high, slight oscillation may occur when aligning to the center, but jitter is minimized through a short delay anti-shake circuit. Motor polarity is not fixed; if rotation direction is opposite to expected, simply swap the motor wire connections. The power supply must be a regulated 5-5.5V DC and should not be directly connected to a solar panel. Color: Black Material: ABS Size: 36x16x1.2mm Package Contents: 2 x Probe 1 x Motherboard Note: Only the items listed above are included. Other products are not included. Note: Light reflection and differences in display screens may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3cm.