Creasol DomBus12: 9 inputs/outputs module for Domoticz

Creasol DomBus12 - 9 I/O module for Domoticz

Name: Creasol DomBus12 - 9 I/O module for Domoticz
Brand: Creasol
SKU: creDomBus12
Price: 20.5 EUR
Availability: InStock

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Creasol DomBus12 is a compact module, 40x30x11mm, with 9 configurable inputs/outputs.
It can be connected to the Domoticz controller by a RS485 serial bus (4 wires, 2 for 12/24V power supply, and 2 for data at 115200bps).

As other DomBus devices, DomBus12 is designed to consume low power, be reliable, fully configurable and easy to use.

Reference: creDomBus12

Protocol: Modbus RTU (compatible with almost any systems)

Modbus RTU (compatible with almost any systems)
DomBus (optimized protocol, working with Domoticz, Home Assistant, OpenHAB)

€29.28

€20.50 - 30%

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24 months warranty, easy return/refund in case of problem

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As other DomBus devices, DomBus12 is designed to consume low power, be reliable, fully configurable and easy to use.

Input module for Domoticz, with 13 wires disconnectable cable

Features

4 configurable I/Os, each one can be set as analog/digital input, twinbutton input, counter, digital output (can be connected to external relay board within relay driver)
2 configurable I/Os, each one can be set as open-drain output (to be connected to external relay), analog/digital input, blind output (to be connected to external relay), LED strip dimmer
3 configurable I/Os, each one can be set as analog/digital inputs, counter, buzzer outputs, blind outputs (to be connected to external relay board), LED strip dimmer (to be connected to external mosfet)
7.5-35Vdc power supply (internally regulated by a switching mode power supply circuitry that minimize power consumption and dissipation)
low power consumption: 0.7mA stand-by current at 12V (10mW)
115200 bps RS485 bus (max length: 1km)

DomBus12 Ports capabilities

Default address: 0xff12

Port#	Name	Capabilities	Default configuration	Description
1	IO	IN_DIGITAL, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER, OUT_DIGITAL	IN_TWINBUTTON	Input, with optional pullup (pcb jumper)
2	IO2	IN_DIGITAL, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER, OUT_DIGITAL	IN_TWINBUTTON	Input, with optional pullup (pcb jumper)
3	IO3	IN_DIGITAL, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER, OUT_DIGITAL	IN_TWINBUTTON	Input, with optional pullup (pcb jumper)
4	IO4	IN_DIGITAL, IN_ANALOG, IN_TWINBUTTON, IN_COUNTER, OUT_DIGITAL	IN_TWINBUTTON	Input, with optional pullup (pcb jumper)
5	IO5	IN_DIGITAL, IN_ANALOG, OUT_DIGITAL, OUT_RELAY_LP, OUT_BLIND, OUT_DIMMER	OUT_DIGITAL	Open-drain output, 60V 100mA capability, suitable to be connected to an external relay. With 2 pcb jumpers it's possibile to bypass mosfet and use this port as normal input/output.
6	IO6	IN_DIGITAL, IN_ANALOG, OUT_DIGITAL, OUT_RELAY_LP, OUT_BLIND, OUT_DIMMER	OUT_DIGITAL	Open-drain output, 60V 100mA capability, suitable to be connected to an external relay. With 2 pcb jumpers it's possibile to bypass mosfet and use this port as normal input/output.
7	IO7	IN_DIGITAL, IN_ANALOG, IN_COUNTER, OUT_DIGITAL, OUT_BLIND, OUT_DIMMER	IN_DIGITAL	Input, with optional 150 ohm resistor that can be enabled by pcb jumper to drive external buzzer or relay board within relay driver
8	IO8	IN_DIGITAL, IN_ANALOG, IN_COUNTER, OUT_DIGITAL, OUT_BLIND, OUT_DIMMER, OUT_BUZZER	IN_DIGITAL	Input, with optional 150 ohm resistor that can be enabled by pcb jumper to drive external buzzer or relay board within relay driver
9	IO9	IN_DIGITAL, IN_ANALOG, IN_COUNTER, OUT_DIGITAL, OUT_BLIND, OUT_DIMMER, OUT_BUZZER	IN_DIGITAL	Input, with optional 150 ohm resistor that can be enabled by pcb jumper to drive external buzzer or relay board within relay driver

(1): can be used as BLIND output, to open a blind/curtain, but only the previous port can be configured in Domoticz as OUT_BLIND because, when configured as OUT_BLIND, DomBus device automatically configure the next port to drive a relay in open direction.

Application notes

Using DomBus12 to control two 230V devices, using the additiona module DomRelay2 (with 2 relays)

Just connect the two open-drain outputs to the 2-relays module by any type of cable (for example a standard 4x0.22mm²).

These outputs can be configured as OUT_DIGITAL or, better, as OUT_RELAY_LP: in this case the relay power consumption will be 1/3 or less.

Using DomRelay2 relays module with DomBus12 to activate 230V loads

Connecting Eastron SDM230 to DomBus12 to measure import and export energy/power on Domoticz

powerMeters Many energy meters, like Eastron SDM230, provide 2 pulse outputs to count the import and export energy, 1 pulse every Wh.

Using DomBus12, DomBus23 or DomBusTH it's very easy to read the pulses from energy meters, compute the instant power and get two devices in Domoticz that show the usage and return power, usage and return total energy and graphs. Below the instructions when SDM230 is used (but check the manual of your energy meter to connect it):

connect the pulse outputs to any available I/O, for example IO8 and IO9 for DomBus12, IO1 and IO2 for DomBusTH or DomBus23. The SDM230 common terminal block should be connected to GND (0V).
configure Pulse1 output, on SDM230, as EXP kWh (check the manual to know how to do that); Pulse2 is pre-configured as IMP kWh (measure the energy imported from grid)
configure the Domoticz device connected to Pulse2: press Edit on that device, and replace in the Description field IN_DIGITAL or IN_TWINBUTTON (the default value) with IN_COUNTER,TYPENAME=kWh and save. Please note that kWh is CASE SENSITIVE!
Now the device will be automatically moved to the Utility panel and configured as energy meter. Edit it again, write a name (for example PowerMeter_Import), and select Usage type.
if produced energy should be measured, configure the Domoticz device connected to Pulse1 as before: press Edit on that device, and replace in the Description field IN_DIGITAL or IN_TWINBUTTON with IN_COUNTER,TYPENAME=kWh and save.
Now the device will be automatically moved to the Utility panel and configured as energy meter. Edit it again, write a name (for example PowerMeter_Export), and select Return type.
In case of both import and export devices are created, it's needed to specify on Import device the Unit number of the Export device, and vice versa. So, select Setup -> Devices and write down the Unit number corresponding to Import (for example 98), and Export device (for example 99), then go to Utility panel, edit Import device and add to the description ,OPPOSITE=99 (Unit of the Export device) and save; edit Export device and add to the description ,OPPOSITE=98 (Unit of the Import device) and save. In this way, when a pulse is received on Import device, the power on Export device will be immediately set to 0, and vice versa, when a pulse is received on Export device, the power on Import device will be set to 0.

Domoticz needs up to 5 minutes before updating the energy counter correctly.

Connecting a water meter or gas meter to Domoticz

Water and gas meter usually have an optoinsulated output that generate a pulse every 0.NNN m³.

Connecting that output to an I/O input of DomBus12, or DomBus23 or DomBusTH, and common output to GND, it's possible to get an incremental counter in Domoticz measuring water, gas, and anything else: counter divider, meter offset and unity of measure can be specified in Domoticz.

The I/O device connected to the meter should be configured in this way: click Edit on the domoticz device, write the appropriate name (for example Water_Meter), replace the current device type (e.g. IN_DIGITAL) in the Description field with IN_COUNTER and save: the device will be moved to the Utility panel and is ready to count pulses.

Using DomBus12 module to control 2x 230V loads by using 2 buttons, 4 magnetic contact sensors and 1 PIR

The following schema shows how to use this home automation module to control some alarm sensors (PIR, to detect movements inside a room, and 4 magnetic contact sensors applied to windows, doors and blinds, to detect the open state and transition), and also command 2 loads (light and dehumidifier, for example) by using the additional DomRelay2 board (within 2 relays) placed near the loads and connected to DomBus12 by a small wire cable.

Creasol DomBus12 domoticz module that control 2 loads (220V) by 2 buttons and 5 alarm sensors

Both DomBus12 and DomRelay2 are very small modules that can fit everywhere.

The two buttons are connected together by a 4k7 resistor and connected to a single input wire: this configuration is called "twinbutton" and permits to use 2 buttons for each module input, and is normally used by double buttons with the function UP/DOWN (applied to roller shutters, for example) or ON/OFF.

DomBus12, DomBus23, DomBus31 and DomBusTH have also the possibility to send command directly to other devices of the same family (and also to itsself), with the following gains:

very easy configuration (don't need to configure the controller); for example it's possible to configure a button to activate a load, writing the command on the device description like shown below
up to 8 commands are supported for each input/sensor
these commands are received and managed by DomBus modules without any latency introduced by the controller
commands work also in the case that the controller is down

Example: module address = 1201, with 2 buttons connected to port 1 and configured as IN_TWINBUTTON, with the following functions:

Short pulse on DOWN button to get light (connected to port 6 of module 1201) ON for 120s: DCMD(Pulse)=1201.6:ON:120s

2s pulse on DOWN button to toggle the same light ON/OFF without any timer: DCMD(Pulse2)=1201.6:TOGGLE

Short pulse on UP button to swith the dehumidifier (connected to port 5 of module 1201) ON for 2 hours: DCMD(Pulse)=1201.5:ON:2h

1s pulse to switch dehumidifer OFF: DCMD(Pulse1)=1201.5:OFF

To configure the port 1 of module 1201 in this way it's sufficient to edit the port 1 device in Domoticz, and write in the description all commands above:

IN_TWINBUTTON,DCMD(Pulse)=1201.6:ON:120s,DCMD(Pulse2)=1201.6:TOGGLE,DCMD(Pulse)=1201.5:ON:2h,DCMD(Pulse1)=1201.5:OFF

Then light and dehumidifier will work even if Domoticz is offline.

MORE INFORMATION AT https://www.creasol.it/CreasolDomBus12

Smart-Home Creasol DomBus modules for Domoticz, Home Assistant, Node-RED, OpenHAB, ...

The following video shows a presentation of some domotic modules designed and produced in Italy by Creasol to make a reliable, easy and power-optimized home automation system.

The next video shows our Smart EVSE module that can be used to charge the electric car by using only solar power, or adding 25/50/75/100% of available power from the electrical grid.

Our industrial and home automation modules are designed to be

very low power (around 10mW with relays OFF)
reliable (no disconnections)
bus connected (no radiofrequency interference, no battery to replace).

Modules are available in two version:

with DomBus proprietary protocol, working with Domoticz only
with Modbus standard protocol, working with Home Assistant, OpenHAB, Node-RED

Home automation system using DomBus modules

Store website - Information website

For our products we can offer FULL SUPPORT and CUSTOMIZATION: please contact us by Email or Telegram

DomBusEVSE - EVSE module to build a Smart Wallbox / EV charging station

Complete solution to make a Smart EVSE, charging the electric vehicle using only energy from renewable source (photovoltaic, wind, ...), or adding 25-50-75-100% of available power from the grid.

Single-phase and three-phases, up to 36A (8kW or 22kW)
Needs external contactor, RCCB (protection) and EV cable
Optional power meter to measure charging power, energy, voltage and power factor
Optional power meter to measure the power usage from the grid (not needed if already exists)
Two max grid power thresholds can be programmed: for example, in Italy who have 6kW contractual power can drain from the grid Max (6* 1.27)=7.6kW for max 90 minutes followed by (6* 1.1)=6.6kW for another 90 minutes. The module can use ALL available power when programmed to charge at 100%.
Works without the domotic controller (stand-alone mode), and can also work with charging current set by the domotic controller (managed mode)

DomBusTH - Compact board to be placed on a blank cover, with temperature and humidity sensor and RGW LEDs

Compact board, 32x17mm, to be installed on blank cover with a 4mm hole in the middle, to exchange air for the relative humidity sensor. It can be installed in every room to monitor temperature and humidity, check alarm sensors, control blind motor UP/DOWN, send notifications (using red and green leds) and activate white led in case of power outage.

Includes:

temperature and relative humidity sensor
red, green and white LEDs
4 I/Os configurable as analog or digital inputs, pushbuttons, counters (water, gas, S0 energy, ...), NTC temperature and ultrasonic distance sensors
2 ports are configured by default as open-drain output and can drive up to 200mA led strip (with dimming function) or can be connected to the external module DomRelay2 to control 2 relays; they can also be configured as analog/digital inputs, pushbuttons and distance sensors.

DomBus12 - Compact domotic module with 9 I/Os

Very compact, versatile and cost-effective module with 9 ports. Each port can be configured by software as:

analog/digital inputs
pushbutton and UP/DOWN pushbutton
counters (water, gas, S0 energy, ...)
NTC temperature and ultrasonic distance sensors
2 ports are configured by default as open-drain output and can drive up to 200mA led strip (with dimming function) or can be connected to the external module DomRelay2 to control 2 relays.

DomBus21 - Power optimized module with 3 High Power latching relays, 1 AC input and 4 low voltage inputs

Very low power consumption module designed to enable up to 3 high power loads, up to 15A (3kW).

3x high power latching relays SPST 15A: latching relay consumes nothing when ON
1x 230V AC opto-isolated input used as power outage detector, and also as zero-crossing detector to permit switching relays On/Off minimizing in-rush current (for capacitive loads) and overvoltage (for inductive loads)
4x low voltage inputs, that can be connected to pushbuttons, switches, meters with pulsed output, NTC temperature sensors, ...

DomBus23 - Domotic module with many functions

Versatile module designed to control gate or garage door.

2x relays SPST 5A
1x 10A 30V mosfet (led stripe dimming)
2x 0-10V analog output: each one can be configured as open-drain output to control external relay
2x I/O lines, configurable as analog/digital inputs, temperature/distance sensor, counter, ...
2x low voltage AC/DC opto-isolated inputs, 9-40V
1x 230V AC opto-isolated input

DomBus31 - Domotic module with 8 relays

DIN rail low profile module, with 8 relays and very low power consumption:

6x relays SPST 5A
2x relays STDT 10A
Only 10mW power consumption with all relays OFF
Only 500mW power consumption with all 8 relays ON !!

DomBus32 - Domotic module with 3 relays

Versatile module with 230V inputs and outputs, and 5 low voltage I/Os.

3x relays SPST 5A
3x 115/230Vac optoisolated inputs
Single common for relays and AC inputs
5x general purpose I/O, each one configurable as analog/digital inputs, pushbutton, counter, temperature and distance sensor.

DomBus33 - Module to domotize a light system using step relays

Module designed to control 3 lights already existing and actually controlled by 230V pushbuttons and step-by-step relays. In this way each light can be activated by existing pushbuttons, and by the domotic controller.

3x relays SPST 5A
3x 115/230Vac optoisolated inputs
Single common for relays and AC inputs
5x general purpose I/O, each one configurable as analog/digital inputs, pushbutton, counter, temperature and distance sensor.

Each relay can toggle the existing step-relay, switching the light On/Off. The optoisolator monitors the light status. The 5 I/Os can be connected to pushbuttons to activate or deactivate one or all lights.

DomBus36 - Domotic module with 12 relays

DIN rail module, low profile, with 12 relays outputs and very low power consumption.

12x relays SPST 5A
Relays are grouped in 3 blocks, with a single common per block, for easier wiring
Only 12mW power consumption with all relays OFF
Only 750mW power consumption with all 12 relays ON !!

DomBus37 - 12 inputs, 3 115/230Vac inputs, 3 relay outputs

Module designed to be connected to alarm sensors (magnetc contact sensors, PIRs, tampers): it's able to monitor mains power supply (power outage / blackout) and also have 3 relays outputs.

12x low voltage inputs (analog/digital inputs, buttons, alarm sensors, balanced double/triple biased alarm sensors, counters, temperature and distance sensors, ...)
3x 115/230Vac optoisolated inputs
2x relays SPST 5A
1x relay SPST 10A

DomBus38 - 4 SPDT 10A relays, 2 SPST 10A relays, 1 AC input, 12 low voltage inputs

DIN rail module designed for burglar alarm system.

4x relays SPDT (normally open + close contacts), 10A
2x relays SPST 10A
1x 115/230Vac optoisolated inputs, that can be used to monitor 230V voltage presence (blackout detector) and it's also used as zero-crossing detector to minimize in-rush current and overvoltage when a relay switches On/Off
12x low voltage inputs (analog/digital inputs, buttons, alarm sensors, balanced double/triple biased alarm sensors, counters, temperature and distance sensors, ...)

DomBusTracker - Smart dual-axis sun tracker to optimize photovoltaic production

DIN rail module that control azimuth + elevation/tilt motors of a sun tracker, to maximize photovoltaic energy production during the day and seasons.

Uses a deep-hole sun sensor, to optimize production with both sunny and cloudy weather
Works in stand-alone mode (no need for external controller)
Can be connected to Domoticz for monitoring and controlling the motors position

DomRelay2 - 2x relays board

Simple module with 2 relays, to be used with DomBus modules or other electronic boards with open-collector or open-drain outputs

2x 5A 12V SPST relays (Normally Open contact)
Overvoltage protection (for inductive loads, like motors)
Overcurrent protection (for capacitive laods, like AC/DC power supply, LED bulbs, ...)