Adafruit Metro M4 Express AirLift (WiFi) - Lite

SKU: ADA4000 Brand: Adafruit

Give your next project a lift with AirLift - Adafruit's witty name for the ESP32 co-processor that graces this Metro M4. You already know about the Adafruit Metro M4 featuring...

$71.40 AUD, inc GST

$64.91 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Fastest delivery: Tomorrow* Disclaimer:
The shipping address needs to be in the AusPost next day network and eParcel Express is chosen during checkout. On rare occasions, orders may be delayed by up to one business day due to AusPost pickup timings or for order verifications.

Quantity Discounts:

6-12 $62.31 (exc GST)
12+ $60.36 (exc GST)

Give your next project a lift with AirLift - Adafruit's witty name for the ESP32 co-processor that graces this Metro M4. You already know about the Adafruit Metro M4 featuring the Microchip ATSAMD51, with it's 120MHz Cortex M4 with floating point support. With a train-load of FLASH and RAM, your code will be fast and roomy. And what better way to improve it than to add wireless? Now cooked in directly on board, you get a certified WiFi module that can handle all your TLS and socket needs, it even has root certificates pre-loaded.

This Metro is the same size as the others, and is compatible with all Adafruit's shields. It's got analog pins where you expect, and SPI/UART/I2C hardware support in the same spot as the Metro 328 and M0. But! It's powered with an ATSAMD51J19:

Cortex M4 core running at 120 MHz
Floating point support with Cortex M4 DSP instructions
512 KB flash, 192 KB RAM
32-bit, 3.3V logic and power
Dual 1 MSPS DAC (A0 and A1)
Dual 1 MSPS ADC (8 analog pins)
6 x hardware SERCOM (I2C, SPI or UART)
22 x PWM outputs
Stereo I2S input/output with MCK pin
10-bit Parallel capture controller (for camera/video in)
Built in crypto engines with AES (256 bit), true RNG, Pubkey controller
64 QFN

Pretty good start right? so they put this chip on a PCB with all these nice extras:

Power the METRO M4 with 7-9V polarity protected DC or the micro USB connector to any 5V USB source. The 2.1mm DC jack has an on/off switch next to it so you can turn off your setup easily. The METRO will automagically switch between USB and DC.
METRO has 25 GPIO pins, 8 of which are analog in, and two of which is a true analog out. There's a hardware SPI port, hardware I2C port and hardware UART. Logic level is 3.3V
Native USB, there's no need for a hardware USB to Serial converter as the Metro M4 has built in USB support. When used to act like a serial device, the USB interface can be used by any computer to listen/send data to the METRO, and can also be used to launch and update code via the bootloader. It can also act like an HID keyboard or mouse.
AirLift WiFi Co-processor, with TLS/SSL support, plenty of RAM for sockets, communication is over SPI and has Arduino and CircuitPython libraries ready to go for fast wireless integration.
Four indicator LEDs and one NeoPixel, on the back edge of the PCB, for easy debugging. One green power LED, two RX/TX LEDs for data being sent over USB, and a red LED connected. Next to the reset button there is an RGB NeoPixel that can be used for any purpose.
2 MB QSPI Flash storage chip is included on board. You can use the SPI Flash storage like a very tiny hard drive. When used in Circuit Python, the 2 MB flash acts as storage for all your scripts, libraries and files. When used in Arduino, you can read/write files to it, like a little datalogger or SD card, and then with Adafruit's helper program, access the files over USB.
Easy reprogramming, comes pre-loaded with the UF2 bootloader, which looks like a USB storage key. Simply drag firmware on to program, no special tools or drivers needed! It can be used to load up CircuitPython or Arduino IDE (it is bossa v1.8 compatible)

Adafruit have a working Arduino board support package, with lots of stuff working, but Adafruit's primary target for this board is CircuitPython - with 120 MHz, and 192KB of RAM CircuitPython runs really well on this chip! CircuitPython's built in support for JSON parsing plus Adafruit's requests compatible library makes it incredibly easy to build secure IoT projects in just a few minutes.

So what are you waiting for? Pick up a Metro M4 AirLift today and be amazed at how easy and fast it is to get started with IoT projects using CircuitPython!

Technical Details

Please note this board has 0.1" instead of 0.125" standard mounting holes, which may affect mounting hardware choices if you're using an Arduino case.

Product Dimensions: 72.0mm x 54.0mm x 15.0mm / 2.8" x 2.1" x 0.6"

Product Weight: 21.8g / 0.8oz

Product Comments

Start the conversation

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!

Write Your Own Review