Dear @wains, on the morning (sunrise) with PV panel facing west (due to prior day), the LDR closest do east will receive the initial sunbeams compared with central LDR (reinforced by bulkhead introduced) which induces the panel to moves toward east.
LDR Photovoltaic Solar TrackerView Instructable »
SaferWork 4.0 - Industrial IoT for Safety
SaferWork 4.0 - Industrial ...View Instructable »
Level Shifter - Robô Aquático