Self-built automatic haymaker via battery

Self-built automatic haymaker via battery - I built a hay maker for a pony that could only eat hay cobs. Unfortunately, I no longer need it. It prepares 6 fresh hay cob meals a day on a time-controlled basis. Must be filled once a day with dry hay cobs. Warm water runs into the hay bucket via the heater every 4 hours in winter. After soaking time, the bucket is turned to open for feeding. Etc. Winter operation possible. Insulated ...