FS S1900-8T Ethernet Unmanaged Switch User Guide

: June 5, 2024
: FS

Table of Contents

FS S1900-8T Ethernet Unmanaged Switch
**Description
The Board
Board Operation
Mechanical Information
Certifications
FCC Caution
Company Information
Revision History
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

FS S1900-8T Ethernet Unmanaged Switch

FS S1900-8T-Ethernet-Unmanaged-
switch-product-

**Description

**

Nano 33 BLE Sense is a miniature-sized module containing a NINA B306 module, based on Nordic nRF52480 and containing a Cortex M4F, a crypto chip which can securely store certiﬁcates and pre-shared keys and a 9 axis IMU. The module can either be mounted as a DIP component (when mounting pin headers), or as a SMT component, directly soldering it via the castellated pads

Target areas:
Maker, enhancements, IoT application

Features

NINA B306 Module

Processor

64 MHz Arm® Cortex-M4F (with FPU) 1
MB Flash + 256 KB RAM

Bluetooth 5 multiprotocol radio

2 Mbps
CSA #2
Advertising Extensions
Long Range
+8 dBm TX power
-95 dBm sensitivity
4.8 mA in TX (0 dBm)
4.6 mA in RX (1 Mbps)
Integrated balun with 50 Ω single-ended output IEEE 802.15.4 radio support
Thread
Zigbee

Peripherals

Full-speed 12 Mbps USB
NFC-A tag
Arm CryptoCell CC310 security subsystem QSPI/SPI/TWI/I²S/PDM/QDEC
High speed 32 MHz SPI
Quad SPI interface 32 MHz
EasyDMA for all digital interfaces
12-bit 200 ksps ADC
128 bit AES/ECB/CCM/AAR co-processor

LSM9DS1 (9 axis IMU)

3 acceleration channels, 3 angular rate channels,
3 magnetic ﬁeld channels±2/±4/±8/±16 g linear acceleration full scale
±4/±8/±12/±16 gauss magnetic full scale
±245/±500/±2000 dps angular rate full scale
16-bit data output

LPS22HB (Barometer and temperature sensor)

260 to 1260 hPa absolute pressure range with 24 bit precision
High overpressure capability: 20x full-scale
Embedded temperature compensation
16-bit temperature data output
1 Hz to 75 Hz output data rateInterrupt functions: Data Ready, FIFO ﬂags, pressure thresholds

HTS221 (relative humidity sensor)

0-100% relative humidity range
High rH sensitivity: 0.004% rH/LSB
Humidity accuracy: ± 3.5% rH, 20 to +80% rH
Temperature accuracy: ± 0.5 °C,15 to +40 °C 16-bit
humidity and temperature output data

APDS-9960 (Digital proximity, Ambient light, RGB and Gesture Sensor)

Ambient Light and RGB
Color Sensing with UV and IR blocking ﬁlters
Very high sensitivity – Ideally suited for operation behind dark glass
Proximity Sensing with Ambient light rejection
Complex Gesture Sensing

MP34DT05 (Digital Microphone)

AOP = 122.5 dbSPL
64 dB signal-to-noise ratio
Omnidirectional sensitivity –26 dBFS ± 3
dB sensitivity

ATECC608A (Crypto Chip)

Cryptographic co-processor with secure hardware-based key storage
Protected storage for up to 16 keys, certiﬁcates or data
ECDH: FIPS SP800-56A Elliptic Curve Diﬃe-Hellman
NIST standard P256 elliptic curve support
SHA-256 & HMAC hash including oﬀ-chip context save/restore
AES-128 encrypt/decrypt, galois ﬁeld multiply for GCM

MPM3610 DC-DC

Regulates input voltage from up to 21V with a minimum of 65%
eﬃciency @minimum load More than 85% eﬃciency @12V

The Board

As all Nano form factor boards, Nano 33 BLE Sense does not have a battery charger but can be powered through USB or headers.
NOTE:
Arduino Nano 33 BLE Sense 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.
Ratings
Recommended Operating Conditions

Symbol	Description	Min	Max
	Conservative thermal limits for the whole board:	-40 °C ( 40 °F)	85°C (

185 °F)

Power Consumption

Symbol	Description	Typ	Unit
PBL	Power consumption with busy loop	TBC	mW
PLP	Power consumption in low power mode	TBC	mW
PMAX	Maximum Power Consumption	TBC	mW

Functional Overview
Board Topology
Top:

Ref.	Description	Ref.	Description
U1	NINA-B306 Module BLE 5.0 Module	U6	MP2322GQH Step Down Converter
U2	LSM9DS1TR Sensor IMU	PB1	IT-1185AP1C-160G-GTR Push button
U3	MP34DT06JTR Mems Microphone	HS-1	HTS221 Humidity Sensor
U4	ATECC608A Crypto chip	DL1	Led L
U5	APDS-9660 Ambient Module	DL2	Led Power

Ref.	Description	Ref.	Description
SJ1	VUSB Jumper	SJ2	D7 Jumper
SJ3	3v3 Jumper	SJ4	D8 Jumper

Processor
The Main Processor is a Cortex M4F running at up to 64MHz. Most of its pins are connected to the external headers, however some are reserved for internal communication with the wireless module and the on-board internal I2C peripherals (IMU and Crypto).
NOTE:
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.

Crypto
The crypto chip in Arduino IoT boards is what makes the diﬀerence with other less secure boards as it provides a secure way to store secrets (such as certiﬁcates) and accelerates secure protocols while never exposing secrets in plain text. Source code for the Arduino Library that supports the Crypto is available [8]

IMU
Arduino Nano 33 BLE has an embedded 9 axis IMU which can be used to measure board orientation (by checking the gravity acceleration vector orientation or by using the 3D compass) or to measure shocks, vibration, acceleration and rotation speed. Source code for the Arduino Library that supports the IMU is available [9]

Barometer and Temperature Sensor
The embedded Barometer and temperature sensor allow measuring ambient pressure. The temperature sensor integrated with the barometer can be used to compensate the pressure measurement.
Source code for the Arduino Library that supports the Barometer is available [10]

Relative Humidity and Temperature Sensor
Relative humidity sensor measures ambient relative humidity. As the Barometer this sensor has an integrated temperature sensor that can be used to compensate for the measurement.
Source code for the Arduino Library that supports the Humidity sensor is available [11]

Digital Proximity, Ambient Light, RGB and Gesture Sensor
Source code for the Arduino Library that supports the Proximity/gesture/ALS sensor is available [12]

Gesture Detection
Gesture detection utilizes four directional photodiodes to sense reflected IR energy (sourced by the integrated LED) to convert physica

Proximity Detection
The Proximity detection feature provides distance measurement (E.g. mobile device screen to user’s ear) by photodiode detection of refl

Color and ALS Detection
The Color and ALS detection feature provides red, green, blue and clear light intensity data. Each of the R, G, B, C channels have a UV

Digital Microphone
The MP34DT05 is an ultra-compact, low-power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface.
The sensing element, capable of detecting acoustic waves, is manufactured using a specialized silicon micromachining process dedicated to produce audio sensors

Power Tree
The board can be powered via USB connector, VIN or VUSB pins on headers.

NOTE:
Since VUSB feeds VIN via a Schottky diode and a DC-DC regulator speciﬁed minimum input voltage is 4.5V the minimum supply voltage from USB has to be increased to a voltage in the range between 4.8V to 4.96V depending on the current being drawn.

Board Operation

Getting Started – IDE
If you want to program your Arduino Nano 33 BLE while oﬄine you need to install the Arduino Desktop IDE [1] To connect the Arduino Nano 33 BLE to your computer, you’ll need a Micro-B USB cable. This also provides power to the board, as indicated by the LED.

Getting Started – Arduino Web Editor
All Arduino boards, including this one, work out-of-the-box on the Arduino Web Editor [2], by just installing a simple plugin. The Arduino Web Editor is hosted online, therefore it will always be up-to-date with the latest features and support for all boards. Follow [3] to start coding on the browser and upload your sketches onto your board.

Getting Started – Arduino IoT Cloud

All Arduino IoT enabled products are supported on Arduino IoT Cloud which allows you to Log, graph and analyze sensor data, trigger events, and automate your home or business.

Sample Sketches
Sample sketches for the Arduino Nano 33 BLE can be found either in the “Examples” menu in the Arduino IDE or in the “Documentation” section of the Arduino Pro website [4]

Online Resources
Now that you have gone through the basics of what you can do with the board you can explore the endless possibilities it provides by checking exciting projects on ProjectHub [13], the Arduino Library Reference [14] and the on line store [15] where you will be able to complement your board with sensors, actuators and more.

Board Recovery
All Arduino boards have a built-in bootloader which allows ﬂashing the board via USB. In case a sketch locks up the processor and the board is not reachable anymore via USB it is possible to enter bootloader mode by double- tapping the reset button right after power up.

Connector Pinouts

USB

Pin	Function	Type	Description
1	VUSB	Power	Power Supply Input. If board is powered via VUSB from header

Headers
The board exposes two 15 pin connectors which can either be assembled with pin headers or soldered through castellated vias.

Pin	Function	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 (1)
9	A5/SCL	Analog	ADC in; I2C SCL; Can be used as GPIO (1)
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

Debug
On the bottom side of the board, under the communication module, debug signals are arranged as 3×2 test pads with 100 mil pitch with pin 4 removed. Pin 1 is depicted in Figure 3 – Connector Positions

Pin	Function	Type	Description
1	+3V3	Power Out	Internally generated power output to be used as voltage

Mechanical Information

Board Outline and Mounting Holes
The board measures are mixed between metric and imperial. Imperial measures are used to maintain 100 mil pitch grid between pin rows to allow them to ﬁt a breadboard whereas board length is Metric

Certifications

Declaration of Conformity CE DoC (EU)
We declare under our sole responsibility that the products above are in conformity with the essential requirements of the following EU Directives and therefore qualify for free movement within markets comprising the European Union (EU) and European Economic Area (EEA).

Declaration of Conformity to EU RoHS & REACH 211 01/19/2021
Arduino boards are in compliance with RoHS 2 Directive 2011/65/EU of the European Parliament and RoHS 3 Directive 2015/863/EU of the Council of 4 June 2015 on the restriction of the use of certain hazardous substances in electrical and electronic equipment.

Substance	Maximum limit (ppm)
Lead (Pb)	1000
Cadmium (Cd)	100
Mercury (Hg)	1000
Hexavalent Chromium (Cr6+)	1000
Poly Brominated Biphenyls (PBB)	1000
Poly Brominated Diphenyl ethers (PBDE)	1000
Bis(2-Ethylhexyl} phthalate (DEHP)	1000
Benzyl butyl phthalate (BBP)	1000
Dibutyl phthalate (DBP)	1000
Diisobutyl phthalate (DIBP)	1000

Exemptions: No exemptions are claimed.
Arduino Boards are fully compliant with the related requirements of European Union Regulation (EC) 1907 /2006 concerning the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH). We declare none of the SVHCs (https://echa.europa.eu/web/guest/candidate-list-table), the Candidate List of Substances of Very High Concern for authorization currently released by ECHA, is present in all products (and also package) in quantities totaling in a concentration equal or above 0.1%. To the best of our knowledge, we also declare that our products do not contain any of the substances listed on the “Authorization List” (Annex XIV of the REACH regulations) and Substances of Very High Concern (SVHC) in any signiﬁcant amounts as speciﬁed by the Annex XVII of Candidate list published by ECHA (European Chemical Agency) 1907

Conflict Minerals Declaration
As a global supplier of electronic and electrical components, Arduino is aware of our obligations with regards to laws and regulations regarding Conﬂict Minerals, speciﬁcally the Dodd-Frank Wall Street Reform and Consumer Protection Act, Section 1502. Arduino does not directly source or process conﬂict minerals such as Tin, Tantalum, Tungsten, or Gold. Conﬂict minerals are contained in our products in the form of solder, or as a component in metal alloys. As part of our reasonable due diligence Arduino has contacted component suppliers within our supply chain to verify their continued compliance with the regulations. Based on the information received thus far we declare that our products contain Conﬂict Minerals sourced from conﬂict-free areas.

FCC Caution

Any Changes or modiﬁcations not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference
this device must accept any interference received, including interference that may cause undesired operation.

FCC RF Radiation Exposure Statement:

This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

English: User manuals for license-exempt radio apparatus shall contain the following or equivalent notice in a conspicuous location in the user manual or alternatively on the device or both. This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:

this device may not cause interference
this device must accept any interference, including interference that may cause undesired operation of the device.

IC SAR Waring:
This equipment should be installed and operated with minimum distance 20 cm between the radiator and your body.
Important:
The operating temperature of the EUT can’t exceed 85℃ and shouldn’t be lower than -40℃.Hereby, Arduino S.r.l. declares that this product is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EU. This product is allowed to be used in all EU member states.