Arduino AKX00034 User manual

Arduino® Edge Control
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Product Reference Manual
SKU: AKX00034
Description
The Arduino® Edge Control board is designed to address the needs of precision farming. It provides a low power
control system, suitable for irrigation with modular connectivity.
The functionality of this board is expandable with Arduino® MKR Boards to provide additional connectivity.
Target areas:
Agriculture measurements, smart irrigation systems, hydroponics

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Features
Nina B306 Module
Processor
64 MHz Arm® Cortex®-M4F (with FPU)
1 MB Flash + 256 KB RAM
Wireless
Bluetooth (BLE 5 via Cordio® stack, BLE 4.2 via Arduino® Stack)
Advertising Extensions
95 dBm sensitivity
4.8 mA in TX (0 dBm)
4.6 mA in RX (1 Mbps)
Peripherals
Full-speed 12 Mbps USB
Arm® CryptoCell® CC310 security subsystem
QSPI/SPI/TWI/I²S/PDM/QDEC
High speed 32 MHz SPI
Quad SPI interface 32 MHz
12-bit 200 ksps ADC
128 bit AES/ECB/CCM/AAR co-processor
Memory
1 MB internal Flash memory
2MB onboard QSPI
SD Card slot
Power
Low Power
200uA Sleep current
Can operate for up to 34 months on a 12V/5Ah battery
12 V Acid/lead SLA Battery Supply (Recharged via solar panels)
RTC CR2032 Lithium Battery back up
Battery
LT3652 Solar Panel Battery Charger
Input Supply Voltage Regulation Loop for Peak Power Tracking in (MPPT) Solar applications

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I/O
6x edge sensitive wake up pins
16x hydrostatic watermark sensor input
8x 0-5V analog inputs
4x 4-20mA inputs
8x latching relay command outputs with drivers
8x latching relay command outputs without drivers
4x 60V/2.5A galvanically isolated solid state relays
6x 18 pin plug in terminal block connectors
Dual MKR Socket
Individual power control
Individual Serial Port
Individual I2C ports
Safety information
Class A

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Contents
1 The Board
1.1 Application Examples
1.2 Accessories
1.3 Related Products
1.4 Solution Overview
2 Ratings
2.1 Absolute Maximum Ratings
2.2 Recommended Operating Conditions
3 Functional Overview
3.1 Board Topology
3.2 Processor
3.3 LCD Screen
3.4 5V Analog Sensors
3.5 4-20mA Sensors
3.6 Watermark Sensors
3.7 Latching Outputs
3.8 Solid State Relays
3.9 Storage
3.10 Power Tree
4 Board Operation
4.1 Getting Started - IDE
4.2 Getting Started - Arduino Web Editor
4.3 Getting Started - Arduino IoT Cloud
4.4 Sample Sketches
4.5 Online Resources
4.6 Board Recovery
5 Connector Pinouts
5.1 J1 LCD Connector
5.2 J3 Wake up signals/External Relay Commands
5.3 J5 USB
5.4 J7 Analog/4-20mA
5.5 J8 Watermark
5.6 J9 Latching Out (+/- VBAT)
5.7 J10 Latching Command (+/- VBAT)

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5.8 J11 Relay (+/- VBAT)
6 Mechanical Information
6.1 Board Outline
6.2 Mounting Holes
6.3 Connector Positions
7 Certifications
7.1 Declaration of Conformity CE DoC (EU)
7.2 Declaration of Conformity to EU RoHS & REACH 211 01/19/2021
7.3 Conflict Minerals Declaration
8 FCC Caution
9 Company Information
10 Reference Documentation
11 Revision History

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1 The Board
1.1 Application Examples
The Arduino® Edge Control is your gateway to Agriculture 4.0. Get real-time insight into the state of your process
and increase crop yield. Improve business efficiency through automation and predictive farming. Tailor the Edge
Control to your needs by using up two Arduino® MKR Boards and an assortment of compatible Shields. Maintain
historical records, automate quality control, implement crop planning and more through the Arduino IoT Cloud
from anywhere in the world.
Automated Greenhouses: In order to minimize carbon emissions and increase economic yield, it is important to
ensure that the best environment is provided for the growth of crops in terms of humidity, temperature and other
factors. The Arduino® Edge Control is an integrated platform that enables remote monitoring and real-times
optimization to this end. Including an Arduino® MKR GPS Shield (SKU:ASX00017) allows for optimum crop rotation
planning and acquisition of geospatial data.
Hydroponics/Aquaponics: Since hydroponics involves the growth of plants without soil, delicate care must be
maintained to ensure they maintain the narrow window required for optimum growth. The Arduino Edge Control
can ensure that this window is achieved with minimal manual labour. Aquaponics can provide even more benefits
than conventional hydroponics towards which the Arduino® Edge Control can help match the even higher
requirements by providing better control over the internal process while ultimately reducing production risks.
Mushroom Cultivation: Mushrooms are notorious for requiring the perfect temperature and humidity conditions
to sustain spore growth while also preventing competing fungi from growing. Thanks to the numerous watermark
sensors, output ports and connectivity options available on the Arduino® Edge Control as well as the Arduino® IoT
Cloud, this precision farming can be achieved on an unprecedented level.
1.2 Accessories
Irrometer Tensiometers
Watermark soil moisture sensors
Mechanized ball valves
Solar panel
12V/5Ah acid/lead SLA battery (11 - 13.3V)

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1.3 Related Products
LCD Display + Flat Cable + plastic enclosure
1844646 Phoenix contacts (included with the product)
Arduino® MKR family boards (for expanding wireless connectivity)
1.4 Solution Overview
Preview assembly
Example of a typical application for a solution including LCD Display and two Arduino® MKR 1300 boards.

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2 Ratings
2.1 Absolute Maximum Ratings
Symbol Description Min Typ Max Unit
TMax Maximum thermal limit -40 20 85 °C
VBattMax Maximum input voltage from battery input -0.3 12 17 V
VSolarMax Maximum input voltage from solar panel -20 18 20 V
ARelayMax Maximum current through relay switch - - 2.4 A
PMax Maximum Power Consumption - - 5000 mW
2.2 Recommended Operating Conditions
Symbol Description Min Typ Max Unit
T Conservative thermal limits -15 20 60 °C
VBatt Input voltage from battery input - 12 - V
VSolar Input voltage from solar panel 16 18 20 V
3 Functional Overview
3.1 Board Topology
Top View

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Board Topology
Ref. Description Ref. Description
U1 LT3652HV battery charger IC J3,7,9,8,10,11 1844798 pluggable terminal blocks
U2 MP2322 3.3V buck converter IC LED1 On board LED
U3 MP1542 19V boost converter
IC PB1 Reset pushbutton
U4 TPS54620 5V boost converter
IC J6 Micro SD Card
U5 CD4081BNSR AND gate IC J4 CR2032 battery holder
U6 CD40106BNSR NOT gate IC J5 Micro USB (NINA Module)
U12,U17 MC14067BDWG multiplexer IC U8 TCA6424A IO expander IC
U16 CD40109BNSRG4 I/O Expander U9 NINA-B306 Module
U18,19,20,21 TS13102 solid state relay IC U10 ADR360AUJZ-R2 Voltage reference series 2.048V
IC
Back View

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Board topolgy back
Ref. Description Ref. Description
U11 W25Q16JVZPIQ Flash 16M IC Q3 ZXMP4A16GTA MOSFET P-CH 40V 6.4A
U7 CD4081BNSR AND gate IC U14, 15 MC14067BDWG IC MUX
3.2 Processor
The Main Processor is a Cortex M4F running at up to 64MHz.

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3.3 LCD Screen
The Arduino® Edge Control provides a dedicated connector (J1) for interfacing with a HD44780 16x2 LCD display
module, sold separately. The main processor controls the LCD via a TCA6424 port expander over I2C. Data is
transferred over a 4-bit interface. LCD backlight intensity is also adjustable by the main processor.
LCD Schematic
3.4 5V Analog Sensors
Up to eight 0-5V analog inputs can be connected to J4 for interfacing analog sensors such as tensiometers and
dendrometers. Inputs are protected by a 19V Zener diode. Each input is connected to an analog multiplexer that
channels the signal to a single ADC port.
Each input is connected to an analog multiplexer (MC14067) that channels the signal to a single ADC port. The main
processor controls the input selection via a TCA6424 port expander over I2C.
Analog Sensors schematic

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3.5 4-20mA Sensors
Up to four 4-20mA sensors can be connected to J4. A reference voltage of 19V is generated by the MP1542 step-up
converter to power the current loop. The sensor value is read via a 220 ohm resistor. Each input is connected to an
analog multiplexer (MC14067) that channels the signal to a single ADC port. The main processor controls the input
selection via a TCA6424 port expander over I2C.
Low power sensors schematic
3.6 Watermark Sensors
Up to sixteen hydrostatic watermark sensors can be connected to J8. Pins J8-17 and J8-18 are the common sensor
pins for all the sensors, controlled directly by the microcontroller. Inputs and the common sensor pins are
protected by a 19V Zener diode.
Each input is connected to an analog multiplexer (MC14067) that channels the signal to a single ADC port. The main
processor controls the input selection via a TCA6424 port expander over I2C. The board supports 2 precision
modes.
Watermark input

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3.7 Latching Outputs
Connectors J9 and J10 provide outputs to latching devices like motorized valves. The latching output consists of
dual channels (P and N) through which an impulse or strobe can be sent in either of the 2 channels (to open a close
valve for example). The duration of the strobes can be configured to adjust to the external device requirement.
The board provides a total of 16 latching ports divided in 2 types:
Latching commands (J10): 8 ports for high impedance inputs ( max +/- 25 mA). Connect to external devices with
third-party protection/power circuits. Referenced to VBAT.
Latching Out (J9): 8 ports. This outputs includes drivers for the latching device. No external drivers are needed.
Referenced to VBAT.
3.8 Solid State Relays
The board features four configurable 60V 2.5A solid state relays with galvanic isolation available in J11. Typical
applications include HVAC, sprinkler control etc.
Solid state Relays schematic

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3.9 Storage
The board includes both a microSD card socket and an additional 2MB flash memory for data storage. Both are
directly connected to the main processor via a SPI interface.
3.10 Power Tree
The board can be powered via solar panels and/or SLA batteries.
Edge Control Power Tree

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4 Board Operation
4.1 Getting Started - IDE
If you want to program your Arduino® Edge Control while offline you need to install the Arduino® Desktop IDE [1]
To connect the Arduino® Edge control to your computer, you’ll need a Micro-B USB cable. This also provides power
to the board, as indicated by the LED.
4.2 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.
4.3 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.
4.4 Sample Sketches
Sample sketches for the Arduino® Edge Control can be found either in the “Examples” menu in the Arduino® IDE
or in the “Documentation” section of the Arduino® Pro website [4]
4.5 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 [5], the Arduino® Library Reference [6] and the
online store [7] where you will be able to complement your board with sensors, actuators and more.

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4.6 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.
5 Connector Pinouts
5.1 J1 LCD Connector
Pin Function Type Description
1 PWM Power Backlight LED Cathode (PWM control)
2 Power On Digital Button input
3 +5V LCD Power LCD power supply
4 LCD RS Digital LCD RS signal
5 Contrast Analog LCD Contrast control
6 LCD RW Digital LCD Read/Write signal
7 LED+ Power Backlight LED Anode
8 LCD EN Digital LCD Enable signal
10 LCD D4 Digital LCD D4 signal
12 LCD D5 Digital LCD D5 signal
14 LCD D6 Digital LCD D6 signal
16 LCD D7 Digital LCD D7 signal
9,11,13,15 GND Power Ground
5.2 J3 Wake up signals/External Relay Commands
Pin Function Type Description
1,3,5,7,9 V BAT Power Gated voltage battery for wake up signal reference
2,4,6,8,10,12 Input Digital Edge sensitive wake up signals
13 Output Digital External solid state relay clock signal 1
14 Output Digital External solid state relay clock signal 2
17 Bidir Digital External solid state relay data signal 1
18 Bidir Digital External solid state relay data signal 2
15,16 GND Power Ground

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5.3 J5 USB
Pin Function Type Description
1 VUSB Power Power Supply Input Note: A board powered only via V USB will not enable most of
the features of the board. Check the power tree in Section 3.8
2 D- Differential USB differential data -
3 D+ Differential USB differential data +
4 ID NC Unused
5 GND Power Ground
5.4 J7 Analog/4-20mA
Pin Function Type Description
1,3,5,7 +19V Power 4-20mA voltage reference
2 IN1 Analog 4-20mA input 1
4 IN2 Analog 4-20mA input 2
6 IN3 Analog 4-20mA input 3
8 IN4 Analog 4-20mA input 4
9 GND Power Ground
10 +5V Power 5V output for 0-5V analog reference
11 A5 Analog 0-5V input 5
12 A1 Analog 0-5V input 1
13 A6 Analog 0-5V input 6
14 A2 Analog 0-5V input 2
15 A7 Analog 0-5V input 7
16 A3 Analog 0-5V input 3
17 A8 Analog 0-5V input 8
18 A4 Analog 0-5V input 4
5.5 J8 Watermark
Pin Function Type Description
1 WaterMrk1 Analog Watermark input 1
2 WaterMrk2 Analog Watermark input 2
3 WaterMrk3 Analog Watermark input 3
4 WaterMrk4 Analog Watermark input 4
5 WaterMrk5 Analog Watermark input 5
6 WaterMrk6 Analog Watermark input 6
7 WaterMrk7 Analog Watermark input 7
8 WaterMrk8 Analog Watermark input 8
9 WaterMrk9 Analog Watermark input 9
10 WaterMrk10 Analog Watermark input 10
11 WaterMrk11 Analog Watermark input 11
12 WaterMrk12 Analog Watermark input 12
13 WaterMrk13 Analog Watermark input 13
14 WaterMrk14 Analog Watermark input 14

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Pin Function Type Description
15 WaterMrk15 Analog Watermark input 15
16 WaterMrk16 Analog Watermark input 16
17,18 VCOMMON Digital Sensor common voltage
5.6 J9 Latching Out (+/- VBAT)
Pin Function Type Description
1 PULSE_OUT0_P Digital Latching output 1 positive
2 PULSE_OUT0_N Digital Latching output 1 negative
3 PULSE_OUT1_P Digital Latching output 2 positive
4 PULSE_OUT1_N Digital Latching output 2 negative
5 PULSE_OUT2_P Digital Latching output 3 positive
6 PULSE_OUT2_N Digital Latching output 3 negative
7 PULSE_OUT3_P Digital Latching output 4 positive
8 PULSE_OUT3_N Digital Latching output 4 negative
9 PULSE_OUT4_P Digital Latching output 5 positive
10 PULSE_OUT4_N Digital Latching output 5 negative
11 PULSE_OUT5_P Digital Latching output 6 positive
12 PULSE_OUT5_N Digital Latching output 6 negative
13 PULSE_OUT6_P Digital Latching output 7 positive
14 PULSE_OUT6_N Digital Latching output 7 negative
15 PULSE_OUT7_P Digital Latching output 8 positive
16 PULSE_OUT7_N Digital Latching output 8 negative
17,18 GND Power Ground
5.7 J10 Latching Command (+/- VBAT)
Pin Function Type Description
1 STOBE8_P Digital Latching command 1 positive
2 STOBE8_N Digital Latching command 1 negative
3 STOBE9_P Digital Latching command 2 positive
4 STOBE9_N Digital Latching command 2 negative
5 STOBE10_P Digital Latching command 3 positive
6 STOBE10_N Digital Latching command 3 negative
7 STOBE11_P Digital Latching command 4 positive
8 STOBE11_N Digital Latching command 4 negative
9 STOBE12_N Digital Latching command 5 positive
10 STOBE12_P Digital Latching command 5 negative
11 STOBE13_P Digital Latching command 6 positive
12 STOBE13_N Digital Latching command 6 negative
13 STOBE14_P Digital Latching command 7 positive
14 STOBE14_N Digital Latching command 7 negative
15 STOBE15_P Digital Latching command 8 positive
16 STOBE15_N Digital Latching command 8 negative

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Pin Function Type Description
17 GATED_VBAT_PULSE Power Gated Positive terminal of battery
18 GND Power Ground
5.8 J11 Relay (+/- VBAT)
Pin Function Type Description
1 SOLAR+ Power Solar Panel Positive Terminal
2 NC NC Unused
3 GND Power Ground
4 RELAY1_P Switch Relay 1 positive
5 NC NC Unused
6 RELAY1_N Switch Relay 1 negative
7 NC NC Unused
8 RELAY2_P Switch Relay 2 positive
9 NC NC Unused
10 RELAY2_N Switch Relay 2 negative
11 10kGND Power Ground via 10k resistor
12 RELAY3_P Switch Relay 3 positive
13 NTC Analog Negative temperature coefficient (NTC) thermoresistor
14 RELAY3_N Switch Relay 3 negative
15 GND Power Ground
16 RELAY4_P Switch Relay 4 positive
17 BATTERY+ Power Battery Positive Terminal
18 RELAY4_N Switch Relay 4 negative
6 Mechanical Information

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6.1 Board Outline
6.2 Mounting Holes