Sixteen LV Digital Inputs 8-Layer Stackable HAT for Raspberry Pi

Add sixteen 3–48 V AC/DC opto-isolated digital inputs to any Raspberry Pi (Zero–5) with this 8-layer stackable HAT. Per-channel range selection, LED status on every input, RS485/MODBUS with a local processor and hardware watchdog, and interrupt-on-change support make the Sixteen LV Digital Inputs Card reliable for industrial/building signals—using only I²C so GPIOs stay free and scaling to 128 inputs with stacking. FEATURES NEW FEATURES IN VERSION 3: *NEW*: Local processor permits standalone operation (no Raspberry Pi) *NEW*: Hardware watchdog resets Raspberry Pi in case of software lockup *NEW*: 3 PIN RS385 Connector *NEW*: 8 extra LEDs (total 16 LEDs, one for each input) *NEW*: DIP Switch Stack Level and RS485 selection (no more jumpers) Inputs can be accessed from any PLC using RS485/MODBUS All inputs opto-isolated reading 3V-48V AC/DC Eight layer stackable to 128 inputs Can interrupt Raspberry Pi on any change of input (no need for polling) Pluggable Connectors 26-16 AWG