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Digital scale and frequency meter with PIC 16F84

The circuit of a digital scale for LED indicators with the common anode:

The circuit of a digital scale for LED indicators with the common cathode:

The circuit of a digital scale for LCD indicator:

The circuit of a frequency meter for LED indicators with the common anode:

The circuit of a frequency meter for LCD indicator:

| Printed-circuit-boards, LED variant | Component side LED variant | Printed-circuit-boards, LCD variant | Component side LCD variant | Source codes |