DQ10rly I2C-HAT

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Raspberry Pi I/O Module / I2C / 10 Relay Outputs

  • 10 relay output channels(5A@250VAC)
  • PWM relay drive for a massive 75% average power consumption reduction
  • Configurable relay PowerOnValue
  • Configurable relay SafetyValue
  • Dual watchdog(system and communication)
  • 2000 VAC isolation voltage
  • Temperature operating range -25 ~ +75°C
  • Stackable, up to 16x
(Excl. tax)

The DQ10rly I2C-HAT is a 10 relay Raspberry Pi add-on board that uses the I2C bus for communication with Raspberry Pi. The DQ10rly offers 10 channel Form A power relay outputs, it also has 10 LED indicators for power relay output state monitoring.

Users can stack up to 16x DQ10rly I2C-HATs on one Raspberry Pi. Make sure every DQ10rly from the stack has a unique I2C bus address. Setting the address value is accomplished using the on board I2C address jumpers.

Power Consumption

This type of HAT consumes a little more power than other types, check specs for power consumption. The reason for the power consumption is the high number of relays. Be careful when stacking multiple HATs that have relays in general.


Interface I2C @ 100 kbs
Voltage Supply 5V
Power Consumption 1.5W(300mA@5v) max.
Operating Temperature -25 to 75°C
Watchdog Timer System and Communication
Relay Outputs
Relay Channels 10
Relay Type Form A relay SPST (N.O.)
Contact Rating 5A @ 250VAC/30VDC
Breakdown Voltage 2000 VAC
Operate Time 10ms
Release Time 5ms



The DI6acDQ6rly I2C-HAT has 2 connectors(each has 10 pin, 3.81mm pitch, detachable screw terminal).

First connector(10 pin) is used by the first 5 Relay Output channels, the second connector(10 pin) is used by the remaining 5 Relay Output channels. Every Relay Output channel uses 2 pins:

  1. NOx – NormalOpen
  2. COMx – Common where x is the channel index, range is [0..9]

For details about wiring diagrams check the Relay Outputs in the Application Wiring post.