ARDUINO NANO 33 IOT WITH HEADERS

I lager.

299 kr

Lätt Användningen av en nano bord med tillägg av säker IoT och BT-anslutning.

Estimate shipping date, end of July 2019

This small, robust and powerful board has WiFi and Bluetooth connectivity that combined with its low power architecture makes it a practical and cost-effective solution for your connected projects.

Arduino Nano 33 IoT is fully compatible with the Arduino IoT Cloud and supports full TLS secure transport: the ATECC608A cryptochip stores the cryptographic keys in hardware, offering a very high level of security for this class of products. The integration with the Arduino IoT Cloud offers also a very efficient way of setting up online dashboards with little coding and minimal effort.

In the same iconic size of the Arduino Nano, the Arduino Nano 33 IoT hosts an Arm Cortex-M0+ SAMD21 processor, a WiFi and Bluetooth module based on ESP32, a 6 axis Inertial Measurement Unit (IMU) and a crypto chip which can securely store certificates and pre shared keys.

The board can either be used in a breadboard (when mounting pin headers), or as a SMT module, directly soldering it via the castellated pads.

With headers mounted.

Getting Started

In the Getting Started section, you can find all the information you need to configure your board, use the Arduino Software (IDE), and start to tinker with coding and electronics.

Do you want to learn more? Don’t miss the interview with Dario Pennisi, Arduino hardware and firmware development manager, who led the development of this board.

This board is based on the SAMD21G18A microcontroller.

Clock
up to 48MHz
Flash
256KB
SRAM
32KB

Please note: Arduino Nano 33 IoT only supports 3.3V I/Os and is NOT 5V tolerant so please make sure you are not directly connecting 5V signals to this board or it will be damaged. Also, as opposed to Arduino Nano boards that support 5V operation, the 5V pin does NOT supply voltage but is rather connected, through a jumper, to the USB power input.

To avoid such risk with existing projects, where you should be able to pull out a Nano and replace it with the new Nano 33 IoT, we have the 5V pin on the header, positioned between RST and A7 that is not connected as default factory setting. This means that if you have a design that takes 5V from that pin, it won’t work immediately, as a precaution we put in place to draw your attention to the 3.3V compliance on digital and analog inputs.

5V on that pin is available only when two conditions are met: you make a solder bridge on the two pads marked as VUSB and you power the NANO 33 IoT through the USB port. If you power the board from the VIN pin, you won’t get any regulated 5V and therefore even if you do the solder bridge, nothing will come out of that 5V pin. The 3.3V, on the other hand, is always available and supports enough current to drive your sensors. Please make your designs so that sensors and actuators are driven with 3.3V and work with 3.3V digital IO levels. 5V is now an option for many modules and 3.3V is becoming the standard voltage for electronic ICs.

The communication on WiFi and Bluetooth is managed by a NINA W102 ESP32 based module. The module is connected to the SAMD21 microcontoller with an SPI BUS and a serial port through the following pins:

SAMD21 Pin
SAMD21 Acronym
NINA Pin
NINA Acronym
Description
13
PA8
19
RESET_N
Reset
39
PA27
27
GPIO0
Attention Request
41
PA28
7
GPIO33
Acknowledge
23
PA14
28 / 21
GPIO5 / GPIO19
SPI CS / UART RTS
24
PA15
29 / 20
GPIO18 / GPIO22
SPI CLK / UART CTS
22
PA13
1
GPIO21
SPI MISO
21
PA12
36
GPIO12
SPI MOSI
31
PA22
23
GPIO3
Processor TX -> Nina RX
32
PA23
22
GPIO1
NINA TX -> Processor RX

Some of the NINA W102 pins are connected to the 15+15 pins headers/pads and can be directly driven by the module's ESP32; in this case it is necessary that the SAMD21 corresponding pins are aptly tri-stated. Below is a list of such signals:

SAMD21 Pin
SAMD21 Acronym
NINA Pin
NINA Acronym
Header Description
48
PB03
8
RESET_N
A7
14
PA09
5
GPIO0
A6
8
PB09
31
GPIO33
A5/SCL
7
PB08
35
GPIO5 / GPIO19
A4/SDA

The IMU is a LSM6DSL and it is managed through I2C.

The crypto chip is an ATECC608A and has a supporting library that is used by the WiFiNINA library.

The board has a two 15 pins connectors - one on each side -,  pin to pin compatible with the original Arduino Nano.

Pin
Funcion
Type
Description
1
D13
Digital
GPIO
2
+3V3
Power Out
Internally generated power output to external devices
3
AREF
Analog
Analog Reference; can be used as GPIO
4
A0/DAC0
Analog
ADC in/DAC out; can be used as GPIO
5
A1
Analog
ADC in; can be used as GPIO
6
A2
Analog
ADC in; can be used as GPIO
7
A3
Analog
ADC in; can be used as GPIO
8
A4/SDA
Analog
ADC in; I2C SDA; Can be used as GPIO (*)
9
A5/SCL
Analog
ADC in; I2C SCL; Can be used as GPIO(*)
10
A6
Analog
ADC in; can be used as GPIO
11
A7
Analog
ADC in; can be used as GPIO
12
VUSB 
Power In/Out
Normally NC; can be connected to VUSB pin of the USB connector by shorting a jumper
13
RST
Digital In
Active low reset input (duplicate of pin 18)
14
GND
Power
Power Ground
15
VIN
Power In
Vin Power input
16
TX
Digital
USART TX; can be used as GPIO
17
RX
Digital
USART RX; can be used as GPIO
18
RST
Digital
Active low reset input (duplicate of pin 13)
19
GND
Power
Power Ground
20
D2
Digital
GPIO
21
D3/PWM
Digital
GPIO; can be used as PWM
22
D4
Digital
GPIO
23
D5/PWM
Digital
GPIO; can be used as PWM
24
D6/PWM
Digital
GPIO; can be used as PWM
25
D7
Digital
GPIO
26
D8
Digital
GPIO
27
D9/PWM
Digital
GPIO; can be used as PWM
28
D10/PWM
Digital
GPIO; can be used as PWM
29
D11/MOSI
Digital
SPI MOSI; can be used as GPIO
30
D12/MISO
Digital
SPI MISO; can be used as GPIO

(*) As opposed to other Arduino Nano boards, pins A4 and A5 have an internal pull up and default to be used as an I2C Bus so usage as analog inputs is not recommended. Opposed to Arduino Nano boards that support 5V operation, the 5V pin does NOT supply voltage but is rather connected, through a jumper, to the USB power input.

On the bottom side of the board, under the communication module, debug signals are arranged as 3x2 test pads with 100 mil pitch. Pin 1 is the bottom left one with the USB connector on the left and the test pads on the right

Pin
Function
Type
Description
1
+3V3
Power Out
Internally generated power output to be used as voltage reference
2
SWD
Digital
SAMD11 Single Wire Debug Data
3
SWCLK
Digital In
SAMD11 Single Wire Debug Clock
4
UPDI
Digital
ATMega4809 update interface
5
GND
Power
Power Ground
6
RST
Digital In
Active low reset input