1. on-Board Tlc5615 Chip, Tlc5615 Is a Digital-to-Analog Converter with Serial Interface, Whose Output Is Voltage Type, and the Maximum Output Voltage Is Twice the Reference Voltage Value, with Power-on Reset Function, the Performance Is Better than That of the Early Current-Type Output DAC. It Only Needs 3 Serial Buses to Complete the Serial Input of 10-Bit Data, Which Is Easy to Interface with Industrial Standard Microprocessor Or Microcontroller (Single Chip Microcomputer)