5. RELAY¶

EC-R3588SPC supports one relay output where ON corresponds to OUTPUT1 in the hardware schematic and COM corresponds to RELAY_COM1 the hardware schematic.

5.1. Interface Diagram¶

_images/output_interface.jpg

5.2. schematic diagram¶

_images/output_sch.jpg

5.3. control¶

When GPIO3_C1_Output low level, OUTPUT1 will be disconnected with RELAY_COM1 ; When RELAY_CTL1 output high level, OUTPUT1 will be connected witch RELAY_COM1.

Since the lower layer Ext Yellow(L2) and relay are controlled by the same GPIO, controlling Ext Yellow(L2) is controlling relay output

The control mode is as follows：

echo 1 > /sys/class/leds/ext_led2/brightness //The lower monochrome led is on, the relay is worked
echo 0 > /sys/class/leds/ext_led2/brightness //The lower monochrome led is off, the relay isn't worked

EC-R3588SPC LED wiki