boneIO Documentation | Hardware Installation

Detailed instructions and wiring diagrams for the boneIO Black 32x10A controller, including power, inputs, outputs, and communication buses.

Key Safety Principals

IMPORTANT: PROFESSIONAL INSTALLATION REQUIRED

We emphasize in the strongest possible terms: safety is the absolute priority. All activities related to connecting the device to an electrical installation must be performed exclusively by a qualified electrician who holds the appropriate certifications. Installation by unqualified individuals poses a risk of electric shock, equipment damage, or fire. The manufacturer assumes no liability for damages resulting from an improper installation.

This applies in particular to:

Connecting the power supply to the controller.
Connecting high-voltage circuits (110V/230V) to the controller's outputs.
All installation work inside the electrical cabinet (distribution board).

Attempting to modify an electrical installation without the proper qualifications is illegal, extremely dangerous, and creates a real hazard that can lead to:

Electric shock, severe personal injury, or death.
Permanent damage to the boneIO controller and all connected equipment.
A significant fire hazard resulting in property damage.
Voiding the product warranty and potential issues with property insurance claims.

The manufacturer of boneIO assumes no liability whatsoever for material damages, personal injury, or loss of life resulting from an installation performed contrary to these guidelines and applicable safety standards.

Please treat this warning with the utmost seriousness.

DIN Rail Mounting

The boneIO ESP controller is designed for mounting on a standard DIN rail (TS35).

Hook the upper clips of the enclosure onto the top edge of the DIN rail.
Press the lower part of the enclosure firmly until the latches lock onto the rail with a distinct click.
Ensure the module is securely mounted.

Power Supply Connection

The device requires a stabilized 24V DC power supply.

Ensure the power supply is disconnected from the 230V/110V mains.
Connect the +24V output of the power supply to the + screw terminal on the boneIO.
Connect the GND (ground) output of the power supply to the GND screw terminal on the boneIO.
Double-check the connections and polarity before turning on the power supply.

24V DC power supply wiring diagram

Connect Ethernet

The device communicates with the network using a built-in Ethernet port, which guarantees a stable and reliable connection. To establish connectivity, connect the module to your network switch using a standard Ethernet (RJ45) cable.

Connect ethernet cable to LAN port on your controller.
Connect other side of ethernet cable to your network switch.

Ethernet connection

Connecting Digital Inputs

Digital inputs are used for connecting switches and sensors. By default, they are ground-controlled.

Connect one of the wires from a momentary switch to the common GND (ground) terminal.
Connect the other wire to the desired input terminal (e.g., IN01).
Pressing the switch will short the input to ground, which will be interpreted as an "on" signal.

Logical diagram of connecting digital input

Example:

Momentary switch wiring diagram

Example 2:

Reed switch wiring diagram

Example 3:

Motion sensor wiring diagram

Connecting Relay Outputs (10A)

The key feature of the 32x10A model is its high output density, integrating 32 relays of 10A each into a remarkably compact form factor. This provides tremendous possibilities for controlling a large number of independent circuits from a single device, saving both space and complexity.

Protection and Correct Wiring Order

It is critical that all overcurrent protection (Miniature Circuit Breakers, MCBs) and residual-current devices (RCDs) are installed in the circuit before the boneIO controller.

The current rating (in Amps) of the overcurrent protection must be sized appropriately for the planned load of the circuit (e.g., the wattage of the lights), but at the same time, it must not exceed the maximum rated current of the relay, which is 10A.

The correct current flow for the phase (L) wire is as follows: RCD Protection -> Overcurrent Protection (MCB) -> COM terminal in boneIO -> OUT terminal in boneIO -> Load

Example 1: Controlling a standard circuit

Connect the phase wire (L), coming from the dedicated overcurrent protection (MCB ≤ 10A), to the COM terminal of the selected output (e.g., COM 1 or COM 2).
Connect the wire leading to the load (e.g., an outlet) to the NO (Normally Open) terminal of the same output (e.g., OUT 1).
Run the neutral wire (N) directly to the load.

Logical Diagram

Safe Connecting of COM and OUT Terminals

In the boneIO controller, version 32x10A every two outputs (e.g., OUT1 and OUT2) share a single common power terminal COM. This means that the phase wire (L) from a single circuit breaker supplies a pair of relays.

REMEMBER, ensure that the relevant circuit breakers in the electrical cabinet are turned off.
Connect the phase wire (L), coming from the overcurrent protection, to the appropriate COM terminal - tighten it with adequate force.
Connect the wire leading to your load (e.g., a light bulb) to its corresponding output terminal - tighten it with adequate force.
Run the neutral (N) wire directly from the neutral bar to the load.

Graphical diagram of connecting two circuits to a shared COM

Connecting Communication Buses

I2C Bus

For connecting additional sensors and expanders over short distances.

Connect the SDA line to the SDA terminal.
Connect the SCL line to the SCL terminal.
Also, connect the VCC and GND power for the sensor.

Graphical diagram of connecting I2C devices

Analog Inputs ADC

Analog inputs allow you to read values from sensors that do not operate in a binary (on/off) manner.

The boneIO Black controller is equipped with 7 analog inputs. The maximum voltage that can be applied to an analog input is 1.8V. To enable measurement from sensors with a higher voltage, an external voltage divider must be used.

Analog sensor wiring diagram