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Counts up from 0 ~ 9999. Leading zeros blanking for first round of counting. When count exceeds 9999, display rolls over to 0000 without leading zeros blanking. This serves as an overflow indicator. Two push buttons are provided for "increment" & "reset". Switch Debouncing is implemented in software to eliminate the need of an external deboucing cap. Based on Microchip PIC 16C54 micro-controller (or compatible chip).
NOTE: This module is not suitable for high speed counting because software debouncing limits the counting rate to below 100 counts per second)
Applications : Object counter for production line, .... PIC 16C54 datasheet H11A1 (MCT2E) datasheet
Display filter to be placed over the 7-segment display
(transparent acrylic board)