# Arduino Prototyping Mounting Plate ## Assembly Start by peeling the paper backing off of the plastic plate. Begin at a corner, it should come off easily. ![adafruit_products_peel.jpg](https://cdn-learn.adafruit.com/assets/assets/000/000/820/medium640/adafruit_products_peel.jpg?1396766176) There are little holes and cutouts, you may need to poke them out using a screwdriver or pen ![adafruit_products_poke.jpg](https://cdn-learn.adafruit.com/assets/assets/000/000/821/medium640/adafruit_products_poke.jpg?1396766187) There are outlines showing how the Arduino and breadboard go on, make sure the print is right way up or it'll be confusing! ![adafruit_products_placement.jpg](https://cdn-learn.adafruit.com/assets/assets/000/000/822/medium640/adafruit_products_placement.jpg?1396766195) There are four mounting holes for various Arduinos. Unfortunately, each Arduino revision has slightly different 'preferred' mounting holes. Here we show what we consider the preferred holes for the Uno R3 which is likely what you have. Place the screws into the plate from the bottom of the plate so they stick up. Screw on two hex nuts to keep them in place ![adafruit_products_bolts.jpg](https://cdn-learn.adafruit.com/assets/assets/000/000/823/medium640/adafruit_products_bolts.jpg?1396766207) Place the Arduino on top, it should slide onto the bolts ![adafruit_products_place.jpg](https://cdn-learn.adafruit.com/assets/assets/000/000/824/medium640/adafruit_products_place.jpg?1396766220) Attach the Arduino securely by screwing on the last two hex nuts The bolts are made of nylon so they will flex a little if necessary. Use pliers to get a grip on the hex nut near the DC power jack ![adafruit_products_plier.jpg](https://cdn-learn.adafruit.com/assets/assets/000/000/830/medium640/adafruit_products_plier.jpg?1396766253) ![adafruit_products_attached.jpg](https://cdn-learn.adafruit.com/assets/assets/000/000/835/medium640/adafruit_products_attached.jpg?1396766301) Remove the paper backing from the half size breadboard and stick it on next to the Arduino. Watch that the bumpy side is not next to the Arduino so it it will flat against it. ![adafruit_products_half.jpg](https://cdn-learn.adafruit.com/assets/assets/000/000/832/medium640/adafruit_products_half.jpg?1396766260) ![adafruit_products_done.jpg](https://cdn-learn.adafruit.com/assets/assets/000/000/833/medium640/adafruit_products_done.jpg?1396766268) Finally, place four bumpers on the bottom! ![adafruit_products_bumper.jpg](https://cdn-learn.adafruit.com/assets/assets/000/000/836/medium640/adafruit_products_bumper.jpg?1396766309) # Arduino Prototyping Mounting Plate ## Buy Adafruit Prototyping Plate ## Featured Products ### Adafruit METRO 328 Fully Assembled - Arduino IDE compatible [Adafruit METRO 328 Fully Assembled - Arduino IDE compatible](https://www.adafruit.com/product/50) We sure love the ATmega328 here at Adafruit, and we use them _a lot_ for our own projects. 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Basically everything you need to be playing within minutes of its arrival. **No soldering required,...** No Longer Stocked [Buy Now](https://www.adafruit.com/product/170) [Related Guides to the Product](https://learn.adafruit.com/products/170/guides) ## Related Guides - [Adafruit 4-Channel ADC Breakouts](https://learn.adafruit.com/adafruit-4-channel-adc-breakouts.md) - [1,500 NeoPixel LED Curtain with Raspberry Pi and Fadecandy](https://learn.adafruit.com/1500-neopixel-led-curtain-with-raspberry-pi-fadecandy.md) - [Arduino Lesson 10. Making Sounds](https://learn.adafruit.com/adafruit-arduino-lesson-10-making-sounds.md) - [Arduino Lesson 6. 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LCD Displays - Part 2](https://learn.adafruit.com/adafruit-arduino-lesson-12-lcd-displays-part-2.md) - [Laser-Cut Enclosure Design](https://learn.adafruit.com/laser-cut-enclosure-design.md) - [Larsio Paint Music](https://learn.adafruit.com/larsio-paint-music.md) - [Sous-vide controller powered by Arduino - The SousViduino!](https://learn.adafruit.com/sous-vide-powered-by-arduino-the-sous-viduino.md)