WirelingZero Processor
WirelingZero is one of TinyCircuits' second-generation processor boards, specifically designed for low-cost Wireling projects. WirelingZero is based on the Atmel SAMD21 32-bit ARM Cortex M0+ processor (the same one used in the Arduino Zero) and provides a USB connectivity port, power management and battery charger in a single 15x32mm board.
New to Wirelings? Check out the Wireling Overview!
Main Features:
- Atmel SAMD21 processor (same as is used on the Arduino Zero)
- More memory compared to TinyDuino (both Flash and RAM)
- Power switch, regulator, lithium battery management on board
- Precision clock crystal and Real-Time Clock hardware built-in, low power standby
- 4 individually addressable I2C Wireling Ports
TECH SPECS
- Atmel ATSAMD21G18A 32 bit ARM processor at 48MHz, Arduino Zero compatible
- 32.728KHz clock crystal, RTC hardware built-in with standby mode down to 0.2mA
- Ultra-compact size and weight (smaller than a US Quarter!)
- 15mm x 32mm (.59 inches x 1.26 inches)
- Max Height: 4.6mm (0.18 inches)
- Ultra-thin 0.61mm (0.024 inches) PCB
- Weight: 1.40 grams (0.049 ounces)
- Atmel 32-bit ATSAMD21G18A ARM Microcontroller
- ARM Cortex M0
- 256KB Flash, 32KB SRAM
- 12-bit ADC, 10-bit DAC
- Default Clock speed: 48MHz
- 2.7V – 5.5V operating voltage with built-in 3.3V regulator
- Arduino compatible bootloader with CDC Serial port, plug and play on OSX and Windows 10
- 4 individually addressable I2C Wireling Ports
Dimensions
- 15mm x 32mm (0.59 inches x 1.26 inches)
NOTES
- This processor board is designed for low-cost Wireling projects, so this board does not include the TinyShield expansion connector.
- To send text to the Arduino IDE Serial Monitor, use the SerialUSB object instead of Serial
- If you were able to upload a sketch to the WirelingZero and now it does not respond, you may need to force this into bootloader mode. To do this, power off the WirelingZero using the slide switch. Plug the USB cable into the WirelingZero and your computer. Then press and hold the button on the bottom on the WirelingZero while sliding the switch to the ON position. Select the new available COM# Port under the Tools tab, then try uploading your program to the WirelingZero and it should work. You may need to try this several times if it does not work the first time.
- All batteries are sold separately
DOWNLOADS
IN THE BOX
1× device (assembled) · 1× USB-C cable · Quick-start card
SPECIFICATIONS
Made & tested in Akron, Ohio, USA.
SHIPPING & RETURNS
Ships from Akron, Ohio within 1–2 business days. Free USPS shipping on U.S. orders over $100. 30-day returns on unused units in original packaging.
A genuine color IPS display — you're watching the real thing on the world's tiniest television.
Drag your own clips over USB-C. Home movies, memes, a crackling fireplace — anything you like, on loop.
Change the channel and volume with an IR remote small enough to lose in your pocket — but it really works.
It actually plays my old home videos on a screen the size of a stamp. It's my desk's favorite object.
The remote is absurd and I love it. Setup took five minutes and my clips looked crisp on that little screen.
Build quality is unreal for something this small. Feels like a real gadget, not a toy — and it's made here.
Gifted one to my brother and now the whole family wants one. Tiny, but seriously mighty.
Battery lasts through a work day on my shelf and the fireplace loop is weirdly cozy. Zero regrets.
Loading my own videos over USB was dead simple. It's the best desk conversation-starter I own.
