Control circuit used for auxiliary medicine feeding machine

The invention discloses a control circuit used for an auxiliary medicine feeding machine. The control circuit includes a timing unit, a motor drive unit and a voice prompt unit. The timing unit is connected with the voice prompt unit and the motor drive unit separately and prompts a patient of medicine taking according to set time points through single-chip microprocessors. The single-chip microprocessor provides hot water and medicines to the patient through driving a motor by the motor drive unit. The timing unit is controlled by a first single-chip microprocessor. The motor drive unit and the voice prompt unit are controlled by a second single-chip microprocessor. The single-chip microprocessors are supplied with 5V working power by a seventh flat cable. A first pin of the seventh flat cable is divided into two channels, wherein one channel is connected with a power source while the other channel is connected with the positive electrode of a first capacitor. The negative electrode of the first capacitor is