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TAPPER Hardware Description

In this article, you will find the details about the TAPPER hardware configuration.

Basic Parameters​

Electrical
Minimal supply voltage10 V
Maximum supply voltage30 V
Typical power consumption1.4 W
Maximum power consumption2.5 W
Inputs
Terminal block nominal cross section1.5 mm2
DC power Jack1.35x3.5 mm
Outputs
RGB LED355 mcd, 710 mcd, 140 mcd
Buzzer80 dBA / 2.7 kHz
Physical
Enclosure dimensions155x84x21.3 mm
Enclosure materialASA+PC (UL 94 V-0)
Enclosure protection classIP40
Enclosure colourtraffic white RAL 9016
Operation temperature-20 °C to +60 °C

Schematic Diagram​

Power​

TAPPER R1.1 power schematic: 10-30 V input via terminal block or DC jack, L6981CDR buck converter producing 5 V

Raspberry Pi + PN532 Breakout Board​

TAPPER R1.1 schematic: Raspberry Pi Zero 2 W GPIO wiring to the PN532 breakout board over SPI

Peripherals​

TAPPER R1.1 peripherals schematic: transistor-driven RGB LED and buzzer, plus the tamper switch input