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 regulated 5-5.5V DC source with sufficient current up to 1.5A. The motor is a geared type; slower speed is recommended. The tested motor model is JGY370 6V. At 5V power supply, the motor operates stably under no load. If the motor speed is too high, slight oscillation may occur when aligned, but not jittering. This circuit includes a short delay for anti-shake functionality. When connecting the motor to the board, polarity is not required initially. If the motor rotates in the wrong direction during testing, simply reverse 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: Light reflection and display differences may cause slight color variation between the image and actual item. Measurement error allowance is +/- 1-3cm.