WirelingZero Processor

DESCRIPTION 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  Note: The battery and 5-pin wireling cables are not included and sold separately.  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 SAMD21 Datasheet Schematic Eagle Files Wireling Library CAD 3D and 2D Files