ABSTRACT
This issue is based on the design of single chip counters. Mainly use the single chip combined with sensor technology development and design of a counting system. The design of hardware circuit STC12C5A60S2 microcontroller and radio-style counting sensor, coupler and so on into the notes. MCU is the master control which STC12C5A60S2 device into the coupler is to test whether the money paper money, and decide whether to open the motor. Count sensor is to detect whether there are banknotes passed. Software development using C language as a development tool. The system can count, the data show that accumulation function key settings. Is a simple structure, stable performance, easy to use, inexpensive, intelligent counter. The system has good application prospects.