Data Sheet

dS1242

dS1242 User Manual v4.03

LED indication

The dS1242 provides a red LED mounted immediately next to each relay to indicate whether it

is in a powered state (LED on), there are also two LED's mounted in the Ethernet connector

which will flash with Ethernet traffic. A row of three LEDs, Blue, Green and Red, are available

to the user for status indication. The Red LED lights when the module is in bootloader mode –

this is when the IDE is uploading system firmware to the module. The Green LED lights the

board begins running user programs. The three user LEDs are available and can be controlled

as digitalports 33-35.

digitalport LedBlue 33

digitalport LedGreen 34

digitalport LedRed 35

The “FlashingLeds” example provides a colourful display showing how to use them.

Power supply

The dS1242 requires a 12v DC supply capable of supplying a minimum of 500mA. This is most

easily provided by a low cost mains adapter. A suitable universal adapter is available on our

website and may be ordered along with the modules. Connection is via the 2.1mm DC jack

socket. Positive on the center pin.

Operating temperature

-40C to +70C