Adafruit Power Relay FeatherWing Created by lady ada Last updated on 2018-08-22 03:55:34 PM UTC
Guide Contents Guide Contents Overview Pinouts Relay Control Relay Output Reset Button Downloads Datasheets & Files Schematic Fabrication Print © Adafruit Industries 2 3 6 6 7 8 9 9 9 9 https://learn.adafruit.
Overview A Feather board without ambition is a Feather board without FeatherWings! This is the Power Relay FeatherWing. It gives you power to control, and control over power. Put simply, you can now turn on and off lamps, fans, solenoids, and other small appliances that run on up to 250VAC or DC power using any Feather board. Compared to our smaller mini Relay FeatherWings (https://adafru.it/xDL), this one can handle a beefy 1200 Watts! Using our Feather Stacking Headers (http://adafru.
With inductive loads, about half that. Check the datasheet for the relay for the exact switching capacity, as it depends on type of load and voltage type and magnitude. This relay is good for handling fairly large devices, computers, TVs, small appliances and more. However, note that when closing the relay, it will draw 100mA continuously from the 3.3V power rail Each FeatherWing comes with a fully assembled and tested PCB, header you can use to attach to your Feather.
Please note: If using with high voltages (> 24V) use care and common sense! High voltages require experience, and are only for use by engineers who are comfortable with guidelines and know how to use them safely! © Adafruit Industries https://learn.adafruit.
Pinouts Relay Control Controlling the relay is really simple. The relay uses a single pin for control. When floating or pulled low, the relay is 'open' or unset. When the pin is pulled high, the relay switches closed/set. A red LED next to the pin will let you know that the signal is high. You will need to solder closed a jumper on the bottom to match the pin you want to use for control. When the relay is closed it will draw approximately 100 milliamps (yep! its a big relay and the voltage is only 3.
Relay Output The Wing has the power control output on the end, a 3-pin 5.08 mm terminal block. The COM pin is what you should connect the signal you're planning to switch. If the relay is unset, the NC pin (Normally Connected) is mechanically connected to COM. NO (Normally Open) is mechanically disconnected. When the relay is set, NC becomes disconnected from COM and NO is connected to COM © Adafruit Industries https://learn.adafruit.
Reset Button There is a Reset button on both Wings, this is connected to the RST pin and will short it to ground. It is not connected to the relay at all, its handy for restarting your Feather © Adafruit Industries https://learn.adafruit.
Downloads Datasheets & Files EagleCAD PCB files on GitHub (https://adafru.it/pXB) Fritzing object in Adafruit Fritzing library (https://adafru.it/c7M) Datasheet for the Relay (https://adafru.
