SKETCH LAYOUT CODE

The product will burn a bootloader code in the system memory when it leaves the factory. Because the samd21 chip has two partitions, one is the Bootloader and the other is the user program. The orange LED lights flicker on and light up.ДЄt this point, the chip enters Bootloader mode and the burn port appears again.Use tweezers or short lines to short the RST pins in the diagram twice.Connect the Seeeduino XIAO to your computer.we can solve this problem by the following operation: Sometimes the Seeeduino XIAO port may disappear when user programming process fails. Please pay attention to use, do not lift the shield cover. The built-in DC-DC converter circuit able to change 5V voltage into 3.3V allows to power the device with a 5V supply via VIN-PIN and 5V-PIN. Voltage input connected to general I/O pins may cause chip damage if it' higher than 3.3V. Multiple development interfaces: 11 digital/analog pins, 10 PWM Pins, 1 DAC output, 1 SWD Bonding pad interface, 1 I2C interface, 1 UART interface, 1 SPI interface.ДЄRM Cortex-M0+ CPU(SAMD21G18) running at up to 48MHz.Small size: As small as a thumb(20x17.5mm) for wearable devices and small projects.Easy project operation: Breadboard-friendly.Flexible compatibility: Compatible with Arduino IDE.Powerful CPU: ARMВ® CortexВ®-M0+ 32bit 48MHz microcontroller(SAMD21G18) with 256KB Flash,32KB SRAM.Get started with CircuitPython on Seeeduino XIAO.There are two documentations on the usage of Seeeduino XIAO which focus on different areas, check the table below for reference: Documentation by Seeed There are two reset button, you can short connect them to reset the board. Moreover, Seeeduino XIAO has a Type-C interface which can supply power and download code. The colors of LEDs(Power,L,RX,TX) are green, yellow, blue and blue.

SKETCH LAYOUT SERIAL

Seeeduino XIAO has 14 GPIO PINs, which can be used for 11 digital interfaces, 11 mock interfaces, 10 PWM interfaces (d1-d10), 1 DAC output pin D0, 1 SWD pad interface, 1 I2C interface, 1 SPI interface, 1 UART interface, Serial communication indicator (T/R), Blink light (L). As a matter of fact, it is designed in a tiny size and can be used for wearable devices and small projects. On the other hand, this little board has good performance in processing but needs less power. It carries the powerful ATSAMD21G18A-MU which is a low-power microcontrollers. The Seeeduino XIAO is the smallest member of the Seeeduino family.

Sketch layout