# Controlling Devices with RFID Wiz ## Overview ![](https://cdn-learn.adafruit.com/assets/assets/000/109/444/medium800/projects_RFID_WIZ.jpeg?1646323355) # What is RFID WIZ? RFID WIZ is a slick new product by [Smooth Technology](https://smooth.technology/). It can read and recognize RFID tags and use them to control devices. It's easy to train and has both a relay **and** 5V logic output so it can be easily integrated into any project.  This board works with all MIFARE 13.56MHz RFID tags-- that includes cards, keyfobs, stickers, and more.  https://www.youtube.com/watch?v=dO15iQr0x2M Info: ## Parts ### RFID Wiz Kit by Smooth Technology [RFID Wiz Kit by Smooth Technology](https://www.adafruit.com/product/5402) RFID made easy! [**RFID Wiz**](http://www.rfidwiz.com) is the easiest way to include RFID in all your projects. Their ONE-TOUCH training system will have you reading RFIDs in no time! Designed for art installations, museums, escape rooms, etc but can be used any time... In Stock [Buy Now](https://www.adafruit.com/product/5402) [Related Guides to the Product](https://learn.adafruit.com/products/5402/guides) ![Angled shot of a white board connected to a red board via ribbon cable.](https://cdn-shop.adafruit.com/640x480/5402-06.jpg) ### Controllable Four Outlet Power Relay Module version 2 [Controllable Four Outlet Power Relay Module version 2](https://www.adafruit.com/product/2935) Say goodbye to hazardous high voltage wiring and create the [Internet of Things](https://www.adafruit.com/categories/342) with safe, reliable power control. The **IoT Power Relay**  from [Digital...](http://www.digital-loggers.com/iot.html) In Stock [Buy Now](https://www.adafruit.com/product/2935) [Related Guides to the Product](https://learn.adafruit.com/products/2935/guides) ![Controllable Four Outlet Power Relay Module](https://cdn-shop.adafruit.com/640x480/2935-13.jpg) ### 13.56MHz RFID/NFC Card - Classic 1K [13.56MHz RFID/NFC Card - Classic 1K](https://www.adafruit.com/product/359) This is a blank 13.56MHz RFID/NFC card - often used for train/bus passes but also found in other systems where a proximity card is desired. The tag contains a small RFID chip and an antenna, and is passively powered by the reader/writer when placed a couple inches away. These can be... In Stock [Buy Now](https://www.adafruit.com/product/359) [Related Guides to the Product](https://learn.adafruit.com/products/359/guides) ![Angled shot of white card.](https://cdn-shop.adafruit.com/640x480/359-01.jpg) ### 13.56MHz RFID/NFC Sticker - Classic 1K [13.56MHz RFID/NFC Sticker - Classic 1K](https://www.adafruit.com/product/362) This is a blank 13.56MHz RFID/NFC sticker - often used for inventory uses but also wherever a sticker is desired. The tag contains a small RFID chip and an antenna, and is passively powered by the reader/writer when placed a couple inches away. These can be read by almost any... In Stock [Buy Now](https://www.adafruit.com/product/362) [Related Guides to the Product](https://learn.adafruit.com/products/362/guides) ![RFID sticker with coil imprinted](https://cdn-shop.adafruit.com/640x480/362-01.jpg) ### 13.56MHz RFID/NFC Sticker - Classic 1K [13.56MHz RFID/NFC Sticker - Classic 1K](https://www.adafruit.com/product/362) This is a blank 13.56MHz RFID/NFC sticker - often used for inventory uses but also wherever a sticker is desired. The tag contains a small RFID chip and an antenna, and is passively powered by the reader/writer when placed a couple inches away. These can be read by almost any... In Stock [Buy Now](https://www.adafruit.com/product/362) [Related Guides to the Product](https://learn.adafruit.com/products/362/guides) ![RFID sticker with coil imprinted](https://cdn-shop.adafruit.com/640x480/362-01.jpg) # Controlling Devices with RFID Wiz ## Pinouts ![](https://cdn-learn.adafruit.com/assets/assets/000/109/445/medium800/projects_wizTop.jpg?1646326835) The RFID WIZ board has 2 power input sections and 2 signal output sections. ## Power Input ![](https://cdn-learn.adafruit.com/assets/assets/000/109/449/medium800/projects_wizPower.jpg?1646330555 Power input screw terminals (left) and power input barrel jack (right)) RFID WIZ needs 6-12VDC to operate. This can be provided via the Vin and GND screw terminals or the 2.1mm barrel jack. ## Signal Output ![](https://cdn-learn.adafruit.com/assets/assets/000/109/448/medium800/projects_wizOutput.jpg?1646330370 Relay output (left) and 5V logic output (right)) RFID WIZ has two signal outputs, both of which change state when the RFID WIZ is triggered: 1. **Relay output** , which is broken into three screw terminals, **NO** , **C** , and **NC** : - If the relay is untriggered, the  **NC**  pin (Normally Connected) is mechanically connected to  **COM**.  **NO**  (Normally Open) is mechanically disconnected. - When the relay is triggered,  **NC**  becomes disconnected from  **COM ** and  **NO**  is connected to  **COM** 2. **5V Logic output** , which has two states: - High (SIG pin outputs 5V) when the board is triggered - Low (SIG pin is tied to GND) when the board is untriggered   # Controlling Devices with RFID Wiz ## Training a Tag ![](https://cdn-learn.adafruit.com/assets/assets/000/109/483/medium800thumb/projects_5402-04.jpg?1646629260) Training a tag on the RFID WIZ couldn't be easier. Simply hold the tag over the red reader board and press the "Train" button. ![](https://cdn-learn.adafruit.com/assets/assets/000/109/454/medium800/projects_TrainButton.jpg?1646347787) You'll see the Status light flash green, and you'll see the green LED by the Relay light up as well. This will stay lit until you remove the tag. The green LED displays the state of the relay and 5v logic output. You'll also hear the click of the relay when it changes state. You can repeat this process with multiple tags.  Training up to 20 tags has been tested with stability. Upwards of 40 should be possible but attempt at your own risk # Controlling Devices with RFID Wiz ## Switching Modes ![](https://cdn-learn.adafruit.com/assets/assets/000/109/456/medium800/projects_ModeSwitch.jpg?1646349082) This section discusses the three modes of the RFID WIZ.  Two of the modes are accessed by flipping the RELEASE switch. - **INSTANT** Mode - The relay and 5V logic output will release as soon as the tag is removed from the reader board.  - **DELAYED** mode - The relay and 5V logic output will hold its state for 5 seconds after the tag is removed, and then it releases. This is useful for magnetic locks (maglocks) and other devices that need some time to "do their thing" (i.e. giving time for a spring to push a maglocked door open)  The third mode is TOGGLE mode.  - **TOGGLE** mode is accessed by tapping the TRAIN button 3 times. In this mode, the state of the relay and 5v logic output is flipped every time the reader board sees a trained tag. It will hold that state until it sees a trained tag again. TOGGLE mode is indicated by an amber light on the Status LED.  - TOGGLE mode ignores the state of the RELEASE switch. # Controlling Devices with RFID Wiz ## Controlling a Maglock Controlling a maglock with RFID WIZ is easy! We can even use the Vin pin on the WIZ to power the maglock. Warning: ## Using the WIZ's power terminals ![](https://cdn-learn.adafruit.com/assets/assets/000/109/475/medium800/projects_Adafruit_Mag_Lock_Example-_Internal_Power.png?1646427393) Follow the image above to make the following connections: - **Vin** to maglock **+** wire - **C** to maglock **-** wire - **GND** to **NC** Note - this will only work with a 12V maglock. This wiring will keep the maglock in the "locked" state until a trained card is placed in front of the reader board.  ## Using an external power supply ![](https://cdn-learn.adafruit.com/assets/assets/000/109/477/medium800/projects_Adafruit_Mag_Lock_Example-_External_Power_%281%29.png?1646429291) In some cases, you might want to use an external power supply. In this case, the onboard relay is acting as a switch to connect and disconnect this external power supply. This would be handy if you're powering a device that needs more than 12VDC. Follow the image above to make the following connections: - Maglock connects to +VDC on the power supply and C on the WIZ relay  - Connect NC on the WIZ relay to -VDC on the maglock This will work with either a 12VDC or 24DC maglock. Make sure to match your power supply voltage to your maglock voltage. This wiring will keep the maglock in the "locked" state until a trained card is placed in front of the reader board.  Danger: # Controlling Devices with RFID Wiz ## Controlling a Power Switch This section will show you how to switch AC outlets using a Four Outlet Power Relay Module. You can also use this method to control any device that looks for 5V logic (such as an Arduino input).  ## RFID WIZ 5V Logic Output   ![](https://cdn-learn.adafruit.com/assets/assets/000/109/611/medium800/projects_WizSignalOut_%281%29.png?1647029847) The RFID WIZ has a white JST PH (2mm pitch) jack with 2 pins - GND - always stays at 0V - SIG - switches from 0V to 5V when the relay flips A 2-pin  JST cable is included with your kit, and can be used to connect to any device looking for a 5V logic input.  The power relay module has corresponding inputs: ![](https://cdn-learn.adafruit.com/assets/assets/000/109/612/medium800/projects_IOT_Pinouts.png?1647030094) ![](https://cdn-learn.adafruit.com/assets/assets/000/109/617/medium800thumb/projects_ezgif.com-gif-maker_%281%29.jpg?1647031405) https://www.youtube.com/watch?v=Z6GD_hTIWLo ## Featured Products ### RFID Wiz Kit by Smooth Technology [RFID Wiz Kit by Smooth Technology](https://www.adafruit.com/product/5402) RFID made easy! [**RFID Wiz**](http://www.rfidwiz.com) is the easiest way to include RFID in all your projects. Their ONE-TOUCH training system will have you reading RFIDs in no time! Designed for art installations, museums, escape rooms, etc but can be used any time... In Stock [Buy Now](https://www.adafruit.com/product/5402) [Related Guides to the Product](https://learn.adafruit.com/products/5402/guides) ### Controllable Four Outlet Power Relay Module version 2 [Controllable Four Outlet Power Relay Module version 2](https://www.adafruit.com/product/2935) Say goodbye to hazardous high voltage wiring and create the [Internet of Things](https://www.adafruit.com/categories/342) with safe, reliable power control. The **IoT Power Relay**  from [Digital...](http://www.digital-loggers.com/iot.html) In Stock [Buy Now](https://www.adafruit.com/product/2935) [Related Guides to the Product](https://learn.adafruit.com/products/2935/guides) ### 13.56MHz RFID/NFC Black Sewable Button - NTAG213 [13.56MHz RFID/NFC Black Sewable Button - NTAG213](https://www.adafruit.com/product/4429) This is a blank  **13.56MHz RFID/NFC Laundry Tag Button ** with an ** NTAG213 ** chip - often used for laundry or garment identification, information sharing, contactless payment, but also found in other systems where a proximity card is desired.... In Stock [Buy Now](https://www.adafruit.com/product/4429) [Related Guides to the Product](https://learn.adafruit.com/products/4429/guides) ### 13.56MHz RFID/NFC Card - Classic 1K [13.56MHz RFID/NFC Card - Classic 1K](https://www.adafruit.com/product/359) This is a blank 13.56MHz RFID/NFC card - often used for train/bus passes but also found in other systems where a proximity card is desired. The tag contains a small RFID chip and an antenna, and is passively powered by the reader/writer when placed a couple inches away. These can be... In Stock [Buy Now](https://www.adafruit.com/product/359) [Related Guides to the Product](https://learn.adafruit.com/products/359/guides) ### 13.56MHz RFID/NFC Sticker - Classic 1K [13.56MHz RFID/NFC Sticker - Classic 1K](https://www.adafruit.com/product/362) This is a blank 13.56MHz RFID/NFC sticker - often used for inventory uses but also wherever a sticker is desired. The tag contains a small RFID chip and an antenna, and is passively powered by the reader/writer when placed a couple inches away. These can be read by almost any... In Stock [Buy Now](https://www.adafruit.com/product/362) [Related Guides to the Product](https://learn.adafruit.com/products/362/guides) ### 13.56MHz RFID/NFC tag assortment - Classic 1K [13.56MHz RFID/NFC tag assortment - Classic 1K](https://www.adafruit.com/product/365) One of each of our favorite 13.56MHz RFID/NFC Classic 1K tags - 5 in total! - [Credit card size](http://www.adafruit.com/products/359) - [1" diameter 'laundry' clear tag](http://www.adafruit.com/products/361) - No Longer Stocked [Buy Now](https://www.adafruit.com/product/365) [Related Guides to the Product](https://learn.adafruit.com/products/365/guides) ### 13.56MHz RFID/NFC Charm - Classic 1K [13.56MHz RFID/NFC Charm - Classic 1K](https://www.adafruit.com/product/884) This is a blank 13.56MHz RFID/NFC embedded in a phone charm - often used for train/bus passes but also found in other systems where a proximity card is desired. The tag contains a small RFID chip and an antenna, and is passively powered by the reader/writer when placed a couple inches... No Longer Stocked [Buy Now](https://www.adafruit.com/product/884) [Related Guides to the Product](https://learn.adafruit.com/products/884/guides) ## Related Guides - [Adafruit MicroLipo and MiniLipo Battery Chargers](https://learn.adafruit.com/adafruit-microlipo-and-minilipo-battery-chargers.md) - [RFID iPhone](https://learn.adafruit.com/rfid-iphone.md) - [Adafruit INA228 I2C Power Monitor](https://learn.adafruit.com/adafruit-ina228-i2c-power-monitor.md) - [No-Code Battery Monitoring with WipperSnapper](https://learn.adafruit.com/no-code-battery-monitoring-with-wippersnapper.md) - [Mini Neon Sign Prop & n00ds Booster Case](https://learn.adafruit.com/nood-booster-case.md) - [Magic Band Teardown](https://learn.adafruit.com/magic-band-teardown.md) - [Adafruit USB Type C Power Delivery Switchable Breakout](https://learn.adafruit.com/adafruit-usb-type-c-power-delivery-switchable-breakout.md) - [Raspberry Pi NFC Minecraft Blocks](https://learn.adafruit.com/raspberry-pi-nfc-minecraft-blocks.md) - [USB to Eurorack Power Supply](https://learn.adafruit.com/usb-to-eurorack-power-supply.md) - [NFC Raspberry Pi Media Player](https://learn.adafruit.com/nfc-raspberry-pi-media-player.md) - [Adafruit PN532 RFID/NFC Breakout and Shield](https://learn.adafruit.com/adafruit-pn532-rfid-nfc.md) - [Glowing Birthday Number Crown](https://learn.adafruit.com/glowing-birthday-number-crown.md) - [Adafruit Ultimate GPS](https://learn.adafruit.com/adafruit-ultimate-gps.md) - [Scannable Links with NFC](https://learn.adafruit.com/scannable-links-with-nfc.md) - [Portable Apple Watch Charger](https://learn.adafruit.com/portable-apple-watch-charger.md)