xyz-mIoT v2.09 by itbrainpower.net family is the worldwide first and most compact (35x45mm / around 7g) IoT boards in this class, class that combines the functionality of the low power Arm® Cortex®-M0 32-bit SAMD21G micro-controller (in Arduino Zero / MKR compatible design) with embedded THS + tVOC + HALL + IR + tilt / vibration sensors and global low power LTE (CATM1 or NB-IoT) / LTE / 3G / GSM connectivity.

Built around Microchip / ATMEL ATSAMD21G ARM0 micro-controller and having integrated Lithium battery (LiPO / LiION) charger, the xyz-mIoT shields support endless devices / sensors / actuators interfacing via abundant 3.3V compliant interfaces (1 * I2C, 1 * SPI, 1 * UART, 13 * digital I/O - 1WIRE and PWM capable, analog inputs and more) and providing support for solar powered applications and for primer Lithium battery powered low power applications (down to 35-37uA total shield sleep current).

The xyz-mIoT by itbrainpower.net shields are Arduino programmable and are supported by RTCC, WDT, low power and other Arduino libraries.

xyz-mIoT basic modem side specifications:

• this version does not have modem embedded

xyz-mIoT basic embedded sensors specifications:

• this version does not have sensors embedded

xyz-mIoT basic MCU side specifications:

• ATMEL SAMD21G - Arm® Cortex®-M0 32-bit.
• Clock Speed: 32.768 kHz (RTCC) - crystal controlled, 48 MHz
• Flash Memory / SRAM: 256 KB / 32KB
• WDT: yes, having crystal time accuracy support
• External Interrupts 8
• Microchip/Atmel ATSAMD21G - ARM0 micro-controller datasheet (pdf)

xyz-mIoT basic interfaces specifications:

• Interfacing Voltage: 3.3V
• Digital I/O Pins:13 + (analog, I2C, SPI, other) pins via alternate function
• DC current per I/O Pin: 7 mA
• PWM Pins: 12
• UART (hardware): 1 + 1(available trough soldering pads)
• SPI(hardware) 1
• I2C (hardware) 1
• Analog Input Pins 5 (ADC 8/10/12 bit)
• dedicated voltage samplers (standard) - 2 ADCs are allocated for Vraw (power in line) and Vbat (battery voltage) supervising
• mini USB type B -Programming port. Can be used for powering.
• xyz-mIoT interfaces description and Arduino port mapping

xyz-mIoT basic powering side and power management specifications:

• low power design: yes – down to 35-40uA* total shield sleep current support
• direct powering w/o rechargeable battery: yes - 3.30-5.20 V supply (min. 50mA sustained) connected to VBAT and GND pins.
• Lithium primer battery support: yes - via VBAT and GND pins.
• Integrated battery charger: yes having 6V solar cell support (couple external components required)
• Rechargeable batteries supported: single cell LiPO / LiION min. 250mAh or super-capacitor >1F / >5V w. ESR less than 150mOhm
• Battery charger inputs and voltages: USB (5V) / Vraw (4.8-7V)
• 3.3V for MCU, sensors and external devices: provided via embedded LDO
• max. available current on 3.3V PAD: 75mA minus the total current sink by output ports
• max. DC current per MCU I/O pin: 7 mA

xyz-mIoT basic datasheets, resources and how to:

• xyz-mIoT basic shield presentation - pdf

• xyz-mIoT family presentation - pdf

• xyz-mIoT basic manufacturer page

• xyz-mIoT basic how to
• xyz-mIoT basic downloads
• xyz-mIoT basic datasheets