NumberFour D100 User manual

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Quick Guide
This document is based on the Intended Hardware Usage Document V7 from 20170405. It is
intended to provide the certification laborator with relevant informtion on Dasher for performing the
relevant tests and to quote for the certification.
Overview
Usage Scenario - countertop POS
- Wifi Access Point
- Printer
OS N4 OS (Linux + Android)
Processor & Memory App Processor iMX6 Cortex A9 Quad Core
RAM: 2GB DDR3
eMMC: 16GB
Displays
Full HD Merchant Display
14" (diagonal) LED-backlit display with IPS technology; 1920x1080 native
resolution
Touchscreen Merchant Display
Capacitive Touchscreen with multi-touch
Anti-Glare and Anti-Fingerprint
5" Customer Display
LED-backlit display with IPS technology; 1280x720 native resolution

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Wireless Wi-Fi
802.11n Wi-Fi wireless networking with 2x2 MiMo technology,
IEEE 802.11 b/g/n compatible
Bluetooth
Bluetooth 2.1+EDR wireless technology
Interfaces 1 x USB OTG
3 x USB
1 x Ethernet (10/100/1000)
1 x HDMI
Wifi (b/g/n)
Bluetooth 2.1+EDR
Printer
Default
Auto Paper Cutter
Out of Paper & Open Printer Detection
50 mm Paper Roll Size
Barcode Scanner CCD Camera Module with fix focus lens
Barcodes supported: EAN, QR-Code
Audio Buzzer
Cash Drawer Port RJ-11/RJ-12 connector
Electrical and Operating
Requirements
Line Voltage: 100-240V AC
Operating Temperature: 0 °C to +45 °C
Storage Temperature: -20 °C to +60 °C
Operating Humidity: 5% - 95% (non-condensing)
In the Box 14" enforeDasher
24V Power Adapter 100-200V AC
Power Cord
5mm Printer Paper Roll
Supported Countries Tier 1: US, UK, DE
Tier 2: Indonesia, India, Malaysia, Turkey, ROE
Tier 3: ROW
TBD: China
Certifications CE & R&TTE
FCC
CCC
CB
RoHS
UL

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Usage Guide
On/Off/Reset
Device is OFF: press push button -> device gets switched ON
Device is ON: press push button -> SW functionality: device shows dialog on the screen
to the user with the option: device goes to SLEEP, OFF, RESET
Device is in SLEEP mode: press push button -> device WAKES up and is in ON mode
Device FORCED SHUTDOWN: press push button >8sec -> device is performing a
hardware shutdown. Pressing again will start the device again
Change Paper
Open the Printer by pressing down the button at the right side of the device
Take out any remaining parts from the previous paper roll
Place the new paper roll inside with the paper towards the printer mechanism and hold
the paper while closing the printer lid.
Concurrent used functions
All functions of the device can be used at the same time
Detail Specifications
Please see below the details for the various parts as reference.
Processor and Memory
Dasher is based on the Freescale iMX6 Cortex-A9 processor. The electrical design is based on
reference designs of the different integrated circuits.
The operating system (N4OS) for Dasher is based on Linux and Android. The Linux user space
is used for UI less N4 services, network services and to deal with external connected devices
via USB or Bluetooth. The Android user space is used for N4 Applications with rich user
interfaces.
The N4 software (Apps and Services) are mostly written in C++ and Java and running on top of
the operating system (N4OS).
Key Features:

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Operating System: N4OS (Linux- and Android -based OS)
Boot from eMMC
Option to use 8, 16 or 32 GB of EMMC memory with fast data transfer
Option to use 1 or 2 GB of DDR3 RAM, needs to be using the full bandwith of 64bit of
the iMX6 for max. performance
Operate 3 different screens at the same time (Merchant Screen, Customer Screen,
HDMI attached Screen)
Fast Factory setup to load Operating System (N4OS)
Numberfour software will enable remote software update via Internet
Support of RealTimeClock with independent power supply (none-rechargeable battery)
for min. 3 years to allow operation in case there is no internet connectivity after startup
Debugging and Testing for development via JTAG and Serial UART
Hardware Requirements:
Processor
freescale iMX6 Quad Core
Memory
eMMC
Pin2Pin compatibility supporting sizes from 8 - 16GB
eMMC 4.4 / 4.41 Standard with 52 MHZ, 8 BIT Transfer Mode & Dual Data
Rate
eMMC will be pre-loaded with operating system for fast factory setup
DDR3 RAM
Pin2Pin compatibility supporting sizes from 1 - 2 GB 4 x 16bit (using the
full bandwith of 64bit of the iMX6 for max. performance to access (read/write)
the RAM)
Firmware Loading (Installation N4OS and N4 Apps/Services)
Initial firmware image loading via different options via Boot ROM
configuration (SW & HW)
Fast Operating System installation via pre-installed OS on eMMC
Download image via USB (Serial Downloader)
Debug for iMX6
JTAG
Serial Debug via UART output / input
Wifi
Dasher will communicate via Wifi with the respective Access Point for communication with the

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NumberFour Backend in the cloud and to get Software Updates.
Also Dasher can operate as an access point (AP) for a Corporate-Network (for business owner
and staff) and for a Guest - Network (for customers of business owner).
Dasher can also be used as a gateway for a mesh network that extends the range of an existing
Wifi Network.
Dasher supports auxiliary devices like external Printers, Barcode Scanner, Weighing Scales or
Payment Devices that can be connected via Wifi.

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Hardware Requirements:
Wifi/BT Module to be used: DHXA-222 Module ( based on AR9462)
Support for 802.11b/g/n & BT 2.1+EDR
Antennas 2.4GHz : 2x
Two connectors on-
standard laptops
Antenna specifications : Impedance / VSWR 1.5
Efficiency 40%
Supports antenna sharing between Bluetooth and Wifi
Communication with Processor via PCIe
Bluetooth
Dasher uses the Wifi/BT Module DHXA-222 Module ( based on AR9462)
Dasher supports auxiliary devices like external Printers, Barcode Scanner, Weighing Scales or
Payment Devices that can be connected via Bluetooth and Dasher device provisioning via BLE.
Key Features from NumberFour selected DHXA-222 Module:
Bluetooth Host and Client
Standard Bluetooth Communication with Bluetooth clients and host: distance is determined
by shared Wifi Antenna.

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Waiter Lock will be implemented using BT to check t he di s t ance be t w een w at erk ey
fob and Dasher for automatic lock-out of user.
Support for operation as Beacon
Wifi/Bluetooth coexistence
Wake-up of Processor via Bluetooth
Can operate at the same time as Wifi antenna
Hardware Requirements:
Wifi/BT Module to be used: DHXA-222 Module ( based on AR9462)
Support of antenna sharing between Bluetooth and Wifi (Wifi/Bluetooth coexistence)
Communication with Processor via USB 2.0
Camera
Built-in Camera for barcode scanning. Scanning of the most used barcodes used in CRM, Retail
and Business (QR-Code, EAN, PDF) from mobile screens and from paper. Primary use case
will be to read CRM codes from mobile screens.
The camera is located in the customer display and requires sufficient lighting for reading
barcodes. Additional lighting is not planned
Key Features:
Operates in a distance from approx.5 cm to 15cm based on NumberFour Software
Detection of multiple barcodes in captured images by Numberfour Software.
Decoding of most used barcodes (Numberfour software will decode 1D & 2D barcodes,
e.g. EAN, QR-Code, PDF)
Hardware Requirements:
Camera Module with
Sensor Chip: GalaxyCore GC2155 selected by Hisense based on Requirements-
CMOS 2MP sensor with internal image processor
support image sizes: 1600 x 1200
Image Output Format: 10-bit, Bayer RGB, RGB565, YCbCr 4:2:2
Sensitivity mini. 3300mV/Lux-sec
Connection through USB bus with additional USB chip
Optical Lens

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Fix Focus calibrated by supplier with Depth of Field (DOF): approx. 5 cm
to 15 cm as tested succesfully with samples (7.5-11.2 specified in Lens
spec with high contrast and minimum distortions
FOV (diagonal): approx. 73 degree (no or very small distortion at lens
edge)
IR filter: yes
Merchant Display
As the Merchant display with the touch is the single most expensive component it is key to
NumberFour to have the flexibility to use different eDP consumer displays in the sizes from
possible.
Key Features:
IPS- - resolution and minimum of 262k color
Power-saving Features to dimm and shut off the display
Electronics allow to exchange eDP displays
Hardware Requirements:
Interface: eDP
Version min 1.1, max. 1.3
supported Resolutions & Frame rates:
1920x1080 @ mind. 60Hz
1366x768 @ mind. 60Hz
supported Color
262k
16.7M
Interface display chip for converting RGB 24bit output from Processor to eDP
Chip selected: Analogix ANX9807
Embedded DisplayPort 1.3 output support with 1.2/1.1 backward
compatibility
RGB24 Input to eDP converter chip interface lines
final LCD choice: 1st choice: LG LP140WF6-SPB6 (2nd choice: M140NWF5 R0)
-like)
Resolution: 1920 x 1080 (FHD)
Brightness/Luminance: min. 250 nits

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Contrast: min. 600:1
Viewing angle: min. 80/80/80/80
Viewing direction: free view
Frame Rate: 60Hz
Color: min. 262k
Interface to Processor to shut off display
Backlight
Single Voltage (supports from 12-16 Volts without layout change)
Dimming (PWM)
ON/OFF
Capacitive Touch & Coverglass
The capacitive touch screen allows the user to operate the device with multi-touch actions.
The cover glass needs to sustain daily usage and might be hardent.
Key Features:
Capacitive Input
Multi-touch Input
Hardened cover glass to sustain reasonable force applied
OCR Bonding with Display
Anti-Glare to limit light directly reflecting in the screen and disturbing the user
Anti-Fingerprinting to enable easy cleaning of fingerprints on the display
Hardware Requirements:
Type: capacitive touch
Interface: I2C or USB
Self-calibration
Wake-up signal to Processor by touch event
Touch Panel, input method: min. 5 touch points
Physical dimensions according to drawings
Final Touch Selection: GoWorld GWTC14219A(R)
Sensor Resolution: 1920*1080
Touch: 5 Finger touch, Host can be woken by tp touch event
Touch Response: min. 100Hz (10ms)
OCR Bonding with Display
Cover Lens (CG), glass type: tempered glass
Light transmittance:
Cover Lens Surface Treatment: Anti-Glare

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Brightness Sensor / Ambient Light Sensor
Dasher has a Brightness Sensor aka Ambient Light Sensor to measure the environment light
conditions and to adjust brightness of the display to save power and to provide a backlight
setting that suits the environmental ambient light. .
Key Features:
Sensor will measure the environment light conditions
Optical filter used with the Brightness Sensor chip that provides a light response similar
to that of the human eye
Hardware Requirements:
Interface to MCU: I2C
Differentiation from full darkness to direct sunlight
Customer Display
the performed merchant task.
Same as the merchant display the customer display should be exchangeable with other, similar
displays. The power supply for the logic needs to be adjustable without modifications on the
main board layout.
The currently selected display is connected via MiPi 2 lane. In the future it might be required to
use displays with MiPi 4 lanes. In this case an adapter board will be used with a converter chip
to convert the signal from MiPi 2 lanes to Mipi 4 lanes. This adapter board needs to be
connected to the main PCB of Dasher.
Key Features:
shows information independent of the merchant display
IPS- min 854x480 @ 50Hz resolution and minimum of 262k color
Power-saving Features to dimm and shut off the display
Dasher should be able to support other, similar displays electrically
Hardware Requirements:
Cover Lens
Air-bonding with Display
Cover Lens (CG), glass type: tempered glass