Home Automation 8-Layer Stackable HAT Made for Raspberry Pi

Price: $80.00
(as of Sep 22, 2026 06:31:52 UTC – Details)

Product description

Read temperatures from up to 32 DS18B20 sensors using the 1-Wire interface. Talk to other PLCs using the RS485 port.Control your HVAC using four relaysRead proximity sensors with optically isolated inputs

Read up to eight zone temperatures using 10K thermistorsControl four dimmers with 0-10V analog outputs

Drive four loads up to 4A/24VDC with Pulse Width Modulated Open Drain MOSFETSUse four more relays for your irrigation systemRead four more input sensors or two quadrature encoders with optically isolated inputs

32 Bit processor running at 64MHz talks to Raspberry Pi using only the I2C port, leaving all the 26 GPIO’s available for other tasks. On-board hardware Watchdog, resettable fuse, reverse polarity protection

Third generation of the original MEGAIO multifunction Raspberry Pi HAT for IoT, Home, Industrial and Building Automation. Stackable to eight layers, it can be expanded to 64 relays, 64 digital inputs, 64 analog inputs, 32 open drain outputs and 32 0-10V outputs.
Control eight 24V AC or DC loads of up to 6A each using on board relays with N.O. contacts, heavy duty pluggable connectors and status LEDs. Read temperature and/or humidity from eight sensors with 12-bit A/D inputs. Control four dimmers using 13-bit DAC outputs with integrated 10V step-up power supply.
Read eight digital inputs from home security contacts using optically isolated inputs. Control four 24VDC loads with open drain MOSFETS. Using only the I2C port for communication, the card leaves all GPIO pins free for other functions. It works with all Raspberry Pi’s from Zero to 4 (Raspberry Pi not included).
Software support includes Command Line, Python, Node-RED native nodes, Domoticz Plugin and OpenPLC integration. In-circuit firmware updates for new features and bug fixes can be done from the command line.
SELF TEST & WATCHDOG: Optional loopback cable can be used to self test all the I/O functions. Integrated hardware watchdog can power-cycle the Raspberry Pi in case of software lockup.
Ideal Solution for your HOME AUTOMATION projects. Read temperatures in up to 8 zones with analog inputs. Control your heating and cooling system with the 8 on-board relays. Use the 8 optically isolated digital inputs for your security system.
Activate the hardware watchdog to monitor and power cycle the Raspberry Pi in case of software lockup. Control four light systems with the four PWM open drain outputs. Control four light dimmers using 0-10V outputs.
Terminal block pitch 3.5mm/0.138″, wire size range 28AWG to 16AWG, strip length 5mm. M2 steel screws, Tightening torque, min 0.22 Nm max 0.25 Nm. FR-4 fiberglass PCB, four 1 oz copper layers.
2×20 expansion pin header, height 25.4mm (1″)
Packing list: 1x Home Automation Module, 4 x Male-Female Hex 19mm M2.5 Brass Standoffs, 4 x M2.5 Brass Nuts, 4 x M2.5x5mm Brass Screws, 9 x 5 pin 3.5mm Terminal Block plugs, 1 x 2 pin 3.5mm Terminal Block plus. *Note*: Raspberry Pi not included.