# Experimenter's Guide for Metro ## Intro # Want to learn about the programming in **Arduino**  but don't know where to start?  Danger: # Start with the  **Experimenters Guide for Metro!** ![](https://cdn-learn.adafruit.com/assets/assets/000/045/498/medium800/adafruit_products_2488-08.jpg?1503086583) The Experimenters Guide for the Adafruit Metro and Metro Express is meant to serve as a quick-start for makers, artists, hackers, students, educators, or anyone who wants to get started with the Metro or Metro M0 Express. This guide has lots of **circuits** to get you comfortable with skills like learning about different types of electronic components (and how they work), programming an Adafruit Metro or Metro Express, breadboarding, and modifying code.  **Already have parts and a board that can be programmed by the Arduino IDE?**  This guide will work for you too! As you progress through this guide in order, you'll be comfortable with the Adafruit Metro enough to work on your own projects (or at least enough to try one of the thousands of projects in the Adafruit Learning System) # About The Experimenters Guides  The experimenters guide is an expanded version of Oomlout's awesome [ARDX kit](https://www.adafruit.com/product/170), but it's compatible the Adafruit Metro Classic and Metro M0 Express. There are a lot of new circuits to take advantage of the Metro Classic and/or Express, and a bunch of small projects to do on your own.  These guides were designed for use both with the 'classic' **Metro (ATmega328)** or **Metro M0 Express (ATSAMD21)** based Metros You can build all of the circuits with parts from the Adafruit Shop. We even provide links to the parts for each circuit in the parts page. - [Next Page](https://learn.adafruit.com/experimenters-guide-for-metro/electronics-primer-a888d35e-af0c-47f3-bec9-3e950b528c78.md) ## Featured Products ### Adafruit MetroX Classic Kit - Experimentation Kit for Metro 328 [Adafruit MetroX Classic Kit - Experimentation Kit for Metro 328](https://www.adafruit.com/product/170) Interested in making neat stuff with an Arduino-compatible board but not sure where to start? This kit includes all the pieces needed to complete over 20 different circuit and projects. 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) ### Adafruit MetroX Classic Kit - Experimentation Kit for Metro 328 [Adafruit MetroX Classic Kit - Experimentation Kit for Metro 328](https://www.adafruit.com/product/3588) Interested in making neat stuff with an Arduino-compatible board but not sure where to start? This kit includes all the pieces needed to complete over 20 different circuit and projects. Basically everything you need to be playing within minutes of its arrival. **No soldering required,...** In Stock [Buy Now](https://www.adafruit.com/product/3588) [Related Guides to the Product](https://learn.adafruit.com/products/3588/guides) ### Budget Pack for Metro 328 - with Assembled Metro ATmega328P [Budget Pack for Metro 328 - with Assembled Metro ATmega328P](https://www.adafruit.com/product/193) This budget pack is an optimized collection of parts and pieces to experiment with **Adafruit Metro 328** and the Arduino IDE at home, school or work. Great for students and those that want to get their feet wet, no soldering required! **Includes the Adafruit...** In Stock [Buy Now](https://www.adafruit.com/product/193) [Related Guides to the Product](https://learn.adafruit.com/products/193/guides) ### Adafruit METRO 328 without Headers [Adafruit METRO 328 without Headers](https://www.adafruit.com/product/2466) We sure love the ATmega328 here at Adafruit, and we use them _a lot_ for our own projects. The processor has plenty of GPIO, Analog inputs, hardware UART SPI and I2C, timers and PWM galore - just enough for most simple projects. When we need to go small, we use a No Longer Stocked [Buy Now](https://www.adafruit.com/product/2466) [Related Guides to the Product](https://learn.adafruit.com/products/2466/guides) ### Adafruit METRO 328 - Arduino Compatible - with Headers [Adafruit METRO 328 - Arduino Compatible - with Headers](https://www.adafruit.com/product/2488) This is the  **Adafruit METRO Arduino-Compatible - with headers. ** It's a fully assembled and tested microcontroller and physical computing board with through-hole headers attached.  If you don't want a Metro with the headers attached for... Out of Stock [Buy Now](https://www.adafruit.com/product/2488) [Related Guides to the Product](https://learn.adafruit.com/products/2488/guides) ## Related Guides - [Ladyada's Learn Arduino - Lesson #0](https://learn.adafruit.com/ladyadas-learn-arduino-lesson-number-0.md) - [Ladyada's Learn Arduino - Lesson #1](https://learn.adafruit.com/ladyadas-learn-arduino-lesson-number-1.md) - [Adafruit BMP388 and BMP390 - Precision Barometric Pressure and Altimeter](https://learn.adafruit.com/adafruit-bmp388-bmp390-bmp3xx.md) - [Echo 2-XL](https://learn.adafruit.com/echo-2-xl.md) - [Adafruit VCNL4040 Proximity Sensor](https://learn.adafruit.com/adafruit-vcnl4040-proximity-sensor.md) - [Mystery Box: NeoMatrix Mk I](https://learn.adafruit.com/mystery-box-neomatrix-mk-i.md) - [Intro to DMX](https://learn.adafruit.com/intro-to-dmx.md) - [Arduin-o-Phone](https://learn.adafruit.com/arduin-o-phone-arduino-powered-diy-cellphone.md) - [Multi-tasking the Arduino - Part 1](https://learn.adafruit.com/multi-tasking-the-arduino-part-1.md) - [Fake TV Light for Engineers](https://learn.adafruit.com/fake-tv-light-for-engineers.md) - [IR Sensor](https://learn.adafruit.com/ir-sensor.md) - [Overwatch Prop Gun: Lucio's Blaster Pt. 1](https://learn.adafruit.com/overwatch-lucio-gun-pt1.md) - [Adafruit MSA301 Triple Axis Accelerometer](https://learn.adafruit.com/msa301-triple-axis-accelerometer.md) - [Arduino GPS Clock](https://learn.adafruit.com/arduino-clock.md) - [Adafruit 1.3" Color TFT Bonnet for Raspberry Pi](https://learn.adafruit.com/adafruit-1-3-color-tft-bonnet-for-raspberry-pi.md)