FREAKDUINO 900 MHz Long Range Wireless Arduino … v2.1A Datasheet.pdfFREAKDUINO 900 MHz Long Range...

FreakLabs FREAKDUINO 900 MHz Long Range

Wireless Arduino-Compatible Prototyping Platform v2.1a

Datasheet

Page 1FREAKDUINO 900 MHz Long Range v2.1A

Document Revision HistoryDate Description2013-09-25 v2.1A

Document release


SpecificationsThe FreakLabs Freakduino 900 MHz long range wireless board is designed for communicating over long distances as well as rapid pro-totyping, evaluation, and deployment of wireless devices at low cost. It combines the ease-of-use of the Arduino IDE and toolchain, compat-ibility with a rich assortment of peripherals in the Arduino shield form factor, and an integrated, amplified 802.15.4 wireless radio for inexpen-sive prototyping and testing of a wireless device.

The base board has all the functionality of an Arduino-based system with a wireless radio and is an inexpensive way to start playing with Arduino designs and wireless communications. This board also has additional amplifiers on the radio to boost both the transmitted and received signal. The result is a total increase of over 30 dB for the total link budget which means the range is drastically increased compared to a bare radio.

It also has optional features such as battery regulation circuitry, a low-cost bottom-mounted battery case, or a ruggedized enclosure with integrated battery case.

QuicK SpecS

MCU: ATMega328P

Memory: 32 kB Flash/2 kB RAM

Communications: 802.15.4 wireless, USB

Radio Amplifiers: Tx: 500 mW (27 dBm), Rx: 11 dB

Expansion: Ardu-ino-compatible shield connector

Power: Ext 5VDC, USB, Battery (op-tional)

Current Con-sumption: Sleep: ~350 uA, Active: 70 mA

Options: Rugge-dized enclosure, battery regulation circuit, standalone battery case

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http://arduino.cc/en/

http://www.shieldlist.org

http://www.shieldlist.org


This board is designed to introduce people to wireless sensor networking inexpensively and with-out having to deal with complex toolchains, protocol stacks, and software. It’s fully compatible with the Arduino IDE and toolchain which offers a single click compile and download and a rich ecosystem of open source software and tutorials available on the internet. The electrical specifica-tions and connector form factor are also compatible with the original Arduino hardware so that the board can interface with the large assortment of Arduino peripheral shields. The availability of third party peripheral shields and open source software allows this board to be used for many diverse applications.

Enhancements were also added to this board to increase functionality. The addition of an inte-grated wireless radio based on the 802.15.4 protocol (same radio protocol as the XBee) allows for wireless control of devices or wireless sensor data collection. Battery circuitry was added so that it could function as a true wireless node without any external power cables. The board is also fitted to a ruggedized enclosure so that the design can be transported safely or deployed in remote set-tings without worrying about damaging the circuit.

The design has also been optimized for low power. It consumes approximately 200 uA in power down/sleep mode at 3.0V which is the voltage supplied by 2 AA alkaline batteries. It consumes approximately 300 uA at 2.4V which is the voltage supplied by 2 AA NiMH rechargeable batter-ies. With proper power management, it’s possible to have the device live for months on a single pair of batteries.

RadioThe main addition to this board is the integrated wireless radio. The radio is based on the 802.15.4 wireless protocol and is the same protocol used by XBee modules and Zigbee devices. The radio operates at 900 MHz and also contains an on-board RF front end for amplification. The transmit amplifier boosts the transmit signal from 10 mW with the bare radio to 500 mW. The receiver amplifier boosts the received signal by 11.7 dB, although there’s typically a 6 dB gain when noise figure and other factors are taken into account.

It comes with an RP-SMA antenna connector which is a standard antenna connector commonly


found on Wi-Fi routers. An external antenna was chosen over other options such as a chip anten-na or printed antenna because of the improved range and variety of available antennas.

The radio driver software and protocol stack are fully open source and available as an Arduino library. The protocol stack is simplified to three main library functions to make wireless commu-nications as simple as possible. Those functions are: init, send, and receive. This makes it easy to use the radio as a simple extension of a serial port or to set up a peer-to-peer star network where each device can talk with any other device within listening range.

There are also many benefits to using 802.15.4 for communications. At 900 MHz, the signal is able to travel long distances and penetrate thick walls. There are a large variety of antennas in different sizes, shapes, and power for both frequencies. Omnidirectional antennas such as the standard whip antennas on Wi-Fi routers give moderate range and allow transmission from all directions. Directional antennas can also be used for greatly improved range if the direction of communications is fixed. The 900 MHz radio also has allows other ways to boost range such as changing the modulation from OQPSK to BPSK.

Some other benefits of using IEEE 802.15.4 is robustness such as automatic acknowledge and retries and functionality such as auto-discard of frames that don’t match the particular network address, node address, or have their data corrupted. Auto retry means that if the receiver doesn’t acknowledge that it received a packet, the transmitter will retry sending the packet up to some maximum number specified by the user. The auto checking of addresses and checksum means that the radio does most of the heavy lifting to ensure the packet arrives uncorrupted and the user doesn’t have to do manual filtering.

The chipset used also has a hardware accelerator for AES-128 encryption. AES-128 is a strong encryption standard used by many government agencies to secure communications, especially wireless communications. The system also supports a true random number generator based on ambient RF signal levels. The chibi library includes support for AES-128 encryption using the on-board encryption engine as well as random number generation using the radio hardware.

Since 802.15.4 is also used for many communications protocols including Zigbee and 6LoW-PAN, the Freakduino can be configured as a wireless protocol sniffer and used in conjunction with Wireshark to form a wireless protocol analyzer for 802.15.4 based protocols. This application is very useful to debug software for these protocols such as smart meter communications or for security testing of 802.15.4 based communications.

Since all software and hardware is open source, all registers and all features are available to the user. It allows for more flexibility for advanced users and a convenient prototyping and test plat-form for users that are considering an 802.15.4 wireless design of their own.


PowerThere are three options to provide power to the board. The most common is via the USB, how-ever the board can also be powered via an external adapter connected to the DC jack. This is especially useful when more power is needed than can be provided by the USB. Finally, when no external power is available, the board can also be battery powered.

The USB connector provides up to 500 mA of current at 5V and can directly power the board for most applications. It’s convenient when the device is connected to a PC since the USB to serial converter also allows for communications with the PC.

For designs with higher current requirements, such as driving motors or high power LEDs, an ex-ternal DC adapter can be used. The adapter should be a minimum of 6V and a maximum of 14V.

Note: The power input is determined by the position of the jumper below the DC input jack. The markings on the jumper indicate whether the USB or DC input is being used.

The board also has two separate connectors for batteries. One of the connectors allows a battery case to be mounted on the bottom side of the board. This is convenient since the battery case is directly mounted to the board and allows for battery operation in tight spaces.

The other connector is located near the bottom of the board and is a 2-wire connector that fea-tures mating and polarization. It’s technically called a JST XH series connector and was chosen to allow easy attachment of external battery cables without worrying about reversing the positive and negative connections. It also makes connecting and disconnecting the battery case of the enclo-sure to the board much easier.


There is also a battery regulation circuit on the board. The reason this is needed is because the battery voltage varies based on the battery type and amount of charge left. The voltage regulation allows either standard alkaline or rechargeable NiMH batteries to be connected to the board and will generate a stable 5V output. The battery regulation circuit has up to two parallel stages. Each stage can provide current output of 200 mA for a maximum of 400 mA. This is fine for most sensors, however power-hungry devices like motors and power LEDs may exceed the maximum current output.

It’s also possible to monitor the battery voltage through one of the analog input pins on the MCU. When combined with wireless communications, its possible to get early warning when the battery starts to get low.

There is a power switch on the board that selects between external line power or battery power. The switch can also be used as an OFF switch if either line power or battery power is not present.

There is also a 2-pin DIP switch on the board that enables or disables the LED indicators. If the board is externally powered, then it’s fine to enable both LEDs, but when the board is battery powered, the LEDs will cause the battery to drain faster and should be disabled. The DIP switch allows the user to easily disable the LEDs during battery operation.


Connectors, Jumpers and SwitchesThe board contains a number of connectors, jumpers, and switches:

1. Power Input Jumper. The power input jumper is used to select between using the external DC jack or the USB to power the board.

2. Main Power Switch. The main power switch toggles between using line power or battery power. When no battery is connected, this would also serve as the OFF position. The opposite is true when no line power is attached.

3. LED Enable Switch. The LED enable DIP switch is used to enable or disable the main power LEDs for 5V and 3.3V supplies. LEDs may consume unecessary power during battery operation so the DIP switch allows the user to enable/disable them when needed.

4. External Antenna Connector. The external antenna connector is an RP-SMA con-nector that attaches to a compatible antenna.

5. Battery Connector. The battery connector is optionally installed and comes with the battery boost kit.

6. Voltage Converter Output Disable. This is only used when programming the bootloader on the board to prevent collisions on the SPI bus. This jumper should rarely be used and only when flashing the bootloader or using an in-system programmer (ISP).


Due to having three ways to power the board, the power switch and power jumper settings need to be configured for your desired input. The switch and jumper is labeled to make things easy, but here’s a quick reference chart on how to configure the power input. The positions in the table cor-respond to the labels on the board.

Main Power Switch Power Input JumperUSB Power USB/DC USB PWRExternal DC Power USB/DC DC PWRBattery Power BATT Ignored


Installing the chibiArduino LibraryOnce you have the board configured properly, it’s time to install the library. The first thing you need to do is get the Arduino IDE and install it. It can be found at the Arduino site. From there, it becomes OS specific:Download the chibiArduino library. You can get it from the FreakLabs website: http://www.freaklabs.org/index.php/chibiArduino.html

From there, it’s OS-specific:

Windows1. Copy the chibiArduino library zip file. Go to the Arduino root directory and then go into the libraries directory:

2. Create a folder called chibiArduino. Paste the chibiArduino library zip file in the folder you just cre-ated. Then unzip the chibiArduino library.

http://arduino.cc/en/Main/Software


3. The library should now be installed. We’re going to verify that it’s in there properly. Start up the Arduino IDE. If it is already open, close it and re-start it. It only checks for new folders and libraries on startup so this is required. Once it starts up, go to the File/Examples menu item and look at the exam-ples listing. You should see the chibiArduino examples:


Linux1. Download the chibiArduino library zip file. Go to your <ARDUINO_ROOT>/libraries folder and cre-ate a folder called chibiArduino inside. Move the chibiArduino zip file into the chibiArduino folder and unzip.

2. Once the file is unzipped inside the chibiArduino folder, the library should be installed. Now we’re going to check to make sure it’s seen properly. Start up the Arduino IDE. If it’s already open, restart the IDE since it only scans for new folders and libraries on startup. Go to the Files/Examples menu item and look at the examples listing. You should see the chibiArduino examples. Select any of the exam-ples to open.


Mac OSX1. Create a folder called “libraries” in the /Documents/Arduino folder on your system. Make sure the Arduino IDE is installed first. Create a folder called “chibiArduino” in the Documents/Arduino/libraries directory. Unzip the chibiArduino library in this folder.


2. Once the chibiArduino library is installed, then we can check to make sure the Arduino IDE sees it. Start the Arduino IDE. If it’s already open, restart the Arduino IDE. It only scans for new folders and libraries on startup so this step is important. Then go to the Files/Examples menu item and check the Examples listings. You should see the chibiArduino examples.


Installing the Board Support PackageAlong with installing the library, a board support package is also required to be installed. This extra step makes it possible to identify which board is being used, which is especially useful since there are multiple variations on the Freakduino design depending on features.

Windows1. First download the FreakLabs board support package located here:

http://www.freaklabsstore.com/pub/freaklabs_hw.zip

2. In Windows, go to the Arduino root directory. You should see the “hardware” directory in the root.

3. Put the board support package in the “<ARDUINO_ROOT>/hardware/arduino” directory. It’s best to also make a backup of your “boards.txt” file.

4. Unzip the file from the board support zip file into its the directory. It should overwrite the current “boards.txt” file which is why its best to backup the current boards.txt file before performing this op-eration.


5. It will also add the following two directories to the “variants” directory. These board variants are for the “freakduino” and “freakduino-lr” and contain information that will allow the Arduino IDE to add the particular boards to the Tools/Board menu. This is the view inside the “<ARDUINO_ROOT>/hard-ware/arduino/variants” directory.

6. Verify that the boards are installed properly. Open the Arduino IDE, go to the Tools/Board menu option and check to see that the boards are installed properly. You can also remove any unwanted boards from the “boards.txt” file to avoid cluttering the Tools/Board menu.

Linux1. Download the FreakLabs board support package located here:



2. Go to the Arduino IDE root directory. You should see the “hardware” folder.

3. Put the board support package in the “<ARDUINO_ROOT>/hardware/arduino” directory. It’s best to also make a backup of your “boards.txt” file. Unzip the board support zip file in this directory. It will overwrite the the current “boards.txt” file so its best to have this backed up.

4. It will also add the following two directories to the “variants” directory. These board variants are for the “freakduino” and “freakduino-lr” and contain information that will allow the Arduino IDE to add the particular boards to the Tools/Board menu. This is the view inside the “<ARDUINO_ROOT>/hard-ware/arduino/variants” directory.



Mac OSX1. First download the FreakLabs board support package located here:


2. In Mac OSX, right-click or ctrl-click on the Arduino icon to get the context menu. Choose “Show Package Contents” and navigate to the “Contents/Resources/Java” menu. This will take you to the Arduino IDE root directory.


3. In the Arduino IDE root directory, navigate to the “<ARDUINO_ROOT>/hardware/arduino” direc-tory.

4. Put the board support package in the “<ARDUINO_ROOT>/hardware/arduino” directory. It’s best to also make a backup of your “boards.txt” file. Unzip the board support zip file in this directory. It will create a new directory with the name of the zip file. Inside that directory, you should find the “boards.txt” file and a folder called “variants”.

5. While inside the newly created directory, copy the new “boards.txt” file into the “<ARDUINO_


ROOT>/hardware/arduino” directory. Go into the variants directory and copy the folders “freakduino” and “freakduino-lr”. Paste those folders into the “<ARDUINO_ROOT>/hardware/arduino/variants” directory. It should look like the following.



Uploading CodeAt this point, you should be able to upload code to the board. This is the procedure.

1. Open the IDE and add code. We’re going to take a shortcut and open up one of the default examples that comes with the Arduino software. Go to the “File/Examples/chibiArduino” menu and select “chibi_ex04_cmdline”.

2. Select the board. Go to the “Tools/Board” menu and select “Freakduino Long Range, 5.0V, 8MHz, w/ATMega328P”.


3. Select the serial port. Plug the USB connector into the Freakduino board and se-lect the serial port that it’s connected to.

4. Click on the “Upload” icon. The code should compile and start uploading. You’ll also see the serial port’s TX and RX LEDs blinking on the Freakduino Long Range board.


Congratulations! You just uploaded your code to the Freakduino Long Range board :)


CompatibilityThe FREAKDUINO 900 MHz Long Range board is essentially an Arduino-based system and a shield integrated together. This means that the peripheral will require using some dedicated pins for the wireless functionality.

Two pins on the analog input connector are not available for use except for standard digital I/O. These are pins Analog 2 and Analog 3. Analog 2 controls the sleep mode and Analog 3 controls the chip select for communications between the microcontroller and radio IC. If the wireless functionality is not used, these pins are available as standard digital I/O but not as analog inputs. If possible, its best to avoid using these pins.

If the wireless functionality is being used, the SPI bus is also required to communicate with the radio. That means that digital pins 10-12 (PB3 to PB5 or MOSI, MISO, and SCLK) will be dedi-cated SPI pins. Please be especially careful when using the AUX LED on the board. It is located on the SCLK pin required by the SPI. If the radio will be used, then the AUX LED should not be used in the sketch.

If there is any question about compatibility with a particular shield, please post to the FreakLabs forums or email [email protected].

LicenseThe FREAKDUINO 900 MHz Long Range hardware design is licensed under the Creative Com-mons Attribution-ShareAlike license v3.0. Attribution is an option and not a requirement. If you do attribute any derivatives of this design to FreakLabs, I’ll think you’re really cool, though :)

DisclaimerThe FREAKDUINO 900 MHz Long Range board is NOT FCC approved. It is designed to comply with FCC Part 15 rules. However this board is not in a finished product form and is only intended for experimental and research/development purposes. If you wish to use this board in an actual product, you will need to attain certification with the appropriate local regulatory body for the complete system. Additionally, please use the wireless equipment in a responsible manner with regard for others and your surroundings.

TroubleshootingThere are some common problems that people run into when using the Freakduino board. The following is a list of issues people have had and the fixes for them:

1. Serial port does not work at speed specified in Arduino sketch. This is most likely

http://creativecommons.org/licenses/by-sa/3.0/

http://creativecommons.org/licenses/by-sa/3.0/


due to having the wrong “Board” setting in the Arduino IDE. Make sure the board “Freak-duino Long Range, 5.0V, 8 MHz, w/ATMega328P” is selected in the Tools/Board menu.

2. Radio is not working or displays “RADIO NOT INITIALIZED PROPERLY” on serial terminal. First, make sure that the voltage converter disable jumper is not mounted. It should not be on in normal operation. The next thing to try when you see that message is to load the example sketch “chibi_ex4_cmdline” with nothing connected to the Freakduino. If the error message disappears, then its likely that some pins needed for radio communications (like the SPI pins) are also being used in the sketch. One of the main culprits of this issue is when a sketch uses the AUX LED on the board. The LED is standard on Arduinos but is unfortunately connected to the SCLK pin required by SPI. If the radio is going to be used, the AUX LED should not be used. Please see the “Compat-ibility” section of this document.

If the error message still shows with the example sketch, then there is likely a hardware problem. Please contact me through the FreakLabs website, email me at chris(at)freaklabs(dot)org, or post on the forums.

SchematicsSchematics can be found on the following page:


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PD2/INT0PD3/INT1/O

C2BPD4/T0PD5/T1/O

C0BPD6/O

C0A/AIN0PD7/AIN1

PC1/ADC1PC2/ADC2PC3/ADC3PC4/ADC4/SDAPC5/ADC5/SCL

PC0/ADC0

PB4/MISO

PB5/SCLKPB3/M

OSI/O

C2A

RESET_NPB5/SCLKPB4/M

ISOPB3/M

OSI/O

C2A

PB1/OC1A

PB0/ICP1

PC0/ADC0PC1/ADC1PC2/ADC2PC3/ADC3PC4/ADC4/SDAPC5/ADC5/SCL

PD0/RXDPD1/TXDPD2/INT0PD3/INT1/O

C2BPD4/T0PD5/T1/O

C0BPD6/O

C0A/AIN0PD7/AIN1

PD0/RXDPD1/TXD

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PB5/SCLKPB5/SCLK

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VCC5_LED

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LOG

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VBAT

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VCC5

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VCC5

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LED CONTROL - THIS MAKESIT POSSIBLE TO TURN OFFTHE LEDS. ESPECIALLYIMPORTANT WHEN RUNNING ONBATTERIES.

USE JUMPER ONLY FORINITIAL PROGRAMMING

CHANGES:1. HGM NEEDS TO GO TO LOGIC LEVEL TRANSLATOR

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PB0/CLKO/ICP1

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PB2/SS/OC1B

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C2A/MO

SI15

PB4/MISO

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AVCC 18

ADC619

AREF20

GND21

ADC722

PC0/ADC023

PC1/ADC124

PC2/ADC225

PC3/ADC326

PC4/ADC4/SDA27

PC5/ADC5/SCL28

PC6/RESET29

PD0/RXD30

PD1/TXD31

PD2/INT032

JP6

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C160.1 uFC160.1 uF

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A13

A24

A35

A46

A57

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A79

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B712

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B514

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B316

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2LX

3

BATT1JST-XH2P

BATT1JST-XH2P

+ 2

- 1

J2

POW

ERJACK/THRU-3

J2

POW

ERJACK/THRU-3

123


55

44

33

22

11

DD

CC

BB

AA

TX_EN/DIG3

RX_EN/DIG4

SMA

TX

UNBALLNA_IN

TR_SW

RX

TRX

RFN_BAL

RFP_BAL

RFN

RFP

XTAL2XTAL1

AVCC3VCC3

AVCC3

VCC3

AVCC3

AVCC3

VCC3AVCC3

AVCC3

INT

SLP_TR

SCLKRADIO

_SEL_N

MISO

MO

SI

RESET_N HGM

Project Title:Size

Rev

Date:Sheet

of

Page Title: v2.1a


HZ LONG

RANGE

B

45


RADIOProject Title:

SizeRev

Date:Sheet

of

Page Title: v2.1a


HZ LONG

RANGE

B

45


RADIOProject Title:

SizeRev

Date:Sheet

of

Page Title: v2.1a


HZ LONG

RANGE

B

45


RADIO

SPRINKLE THESE AROUNDGROUND SEPARATION. CANALSO USE 12 PF CAPS IFNEEDED.

C712 pF

C712 pF

C2812 pFC2812 pF

C25

0.1 uF

C25

0.1 uF

R170 R170

C1112 pF

C1112 pF

FB1

FB/0805

FB1

FB/0805

12

C11 uF

C11 uF

BLN1

RF BALUN-0900BL18B100 BLN1

RF BALUN-0900BL18B100

GND

1

UNBAL2

GND

3BAL1

4

NC5

BAL26

C2912 pFC2912 pF

R9

DNI R9

DNIU2CC1190

U2CC1190

GND1

PA_OUT

2

GND3

TR_SW4

LNA_IN5

HGM

6LNA_EN

7PA_EN

8

GND9

LNA_OUT

10

PA_IN11

GND12

VDD_LNA 13

BIAS14

VDD_PA2 15VDD_PA1 16

GND17

ANT1SM

AANT1

SMA

11

GND2 GND3

GND4 GND5

C2268 pF

C2268 pF

C3

DNI

C3

DNI

GND

Y1

NX3225SA, 15PPM

GND

Y1

NX3225SA, 15PPM

124 3

C947 pF

C947 pF

C50.1 uF

C50.1 uF

U4

AT86RF212

U4

AT86RF212

DIG3

1DIG

42

AVSS3

RFP4

RFN5

AVSS6

DVSS7

RST8

DIG1

9DIG

210

SLP_TR11

DVSS12 DVDD 13DVDD 14

DEVDD 15

DVSS16

CLKM17

DVSS18

SCLK19

MISO

20

DVSS21

MO

SI22

SEL23

IRQ24

XTAL225

XTAL126

AVSS27 EVDD 28AVDD 29AVSS30

AVSS31AVSS32

DVSS33

C812 pF

C812 pF

L13.3 nH

L13.3 nH

12

R200 R200

C2168 pF

C2168 pF

C26

0.1 uF

C26

0.1 uF

R53.3kR53.3k

C24

0.1 uF

C24

0.1 uF

R190 R190

L41.5 nH

L41.5 nH

12

L310 nHL310 nH

1 2

L27.5 nH

L27.5 nH

12

C15

0.1 uF

C15

0.1 uF

C23

0.1 uF

C23

0.1 uF

C1022uF/6.3VC1022uF/6.3V

C27

0.1 uF

C27

0.1 uF

C4

3.0 pF

C4

3.0 pF

C18

12 pF

C18

12 pF

R180 R180

C12

12 pF

C12

12 pF

R12

DNI

R12

DNI

C60.001 uF

C60.001 uF


55

44

33

22

11

DD

CC

BB

AA

RX

LED

_N

DMDP

TXLE

D_N

VB

US

VB

US

VB

US

VB

US

VB

US

MC

U_R

XM

CU

_TX

DTR

_N

Project Title:

Size

Rev

Date:

Sheet

of

Page Title:

v2.1aFR

EA

KD

UIN

O C

HIB

I 900 MH

Z LON

G R

AN

GE

A

55


US

BP

roject Title:S

izeR

ev

Date:

Sheet

of

Page Title:

v2.1aFR

EA

KD

UIN

O C

HIB

I 900 MH

Z LON

G R

AN

GE

A

55


US

BP

roject Title:S

izeR

ev

Date:

Sheet

of

Page Title:

v2.1aFR

EA

KD

UIN

O C

HIB

I 900 MH

Z LON

G R

AN

GE

A

55


US

B

D8

GR

EE

ND

8G

RE

EN

U9FT231X

S

U9FT231X

S

DTR

_N1

RTS

_N2

VCCIO 3

RX

D4

RI_N

5

GND6

DS

R_N

7D

CD

_N8

CTS

_N9

CB

US

210

US

BD

+11

US

BD

-12

3V3O

UT

13

RE

SE

T_N14

VCC 15GND16

CB

US

117

CB

US

018

CB

US

319

TXD

20

C36

0.1 uF

C36

0.1 uF

J3U

SB

-Mini-A

BJ3

US

B-M

ini-AB

D+

3D

-2

+5V1

GN

D5

ID4

SHLD6 SHLD7 SHLD8 SHLD9

C35

0.1 uF

C35

0.1 uF

R23

330R

23330

R22

330R

22330

D9

GR

EE

ND

9G

RE

EN


PCB LayoutPCB layout file order:

1. Mechanical Dimensions

2. Top Layer

3. Bottom Layer

4. Assembly Drawing - Silkscreen View

5. Assembly drawing - Reference Designator View




Bill of MaterialsQuan-tity

Reference Manufacturer Part Number Description

1 ANT1 ChangHong SMA-02-113-TGG RP-SMA Connector

1 BATT1 JST JST-XH2P 2-pin mated, polarized connector, male

1 BATT2 COMF BH321-1P 2-AA battery case

1 BLN1 Johanson Technol-ogy

0900BL18B100E 900 MHz, 100/50 ohm balun

1 C1 Various 1 uF 1 uF/50V3 C3,R9,R12 DNI1 C4 Various 3.0 pF/50V, 0603 RF

14

C5, C15, C16, C23, C24, C25, C26, C27, C30, C31, C32, C34, C35, C36

Various 0.1 uF/50V, 0603

1 C6 Various 0.001 uF/50V, 0603

7 C7, C8, C11, C12, C18, C28,

Various 12 pF/50V, 0603

C291 C9 Various 47 pF/50V, 06032 C10, C19, C33 Various 22uF/6.3V, 08051 C13 Various 100uF/16V, electrolytic2 C14, C20 Various 100 uF/35V, electrolytic2 C21, C22 AVX 06035A680JAT2A 68 pF/50V, 0603, RF1 D1 Various Blue LED, 06032 D2, D6 Various Red LED, 06032 D5, D7 Vishay BAT43 Schottky Diode2 D8, D9 Various Green LED, 06031 FB1 Various Ferrite Bead, 0603

1 H3 Various H3X2 3x2 Straight male header, 0.100”

1 JP1 Various JP3/THRU_VERT 1x3 Straight male header, 0.100”

2 JP3, JP6 Various JP8/THRU 1x8 Straight female header, 0.100”

2 JP4, JP7 Various JP2/THRU 1x2 Straight male header, 0.100”

1 JP2, JP5 Various JP6/THRU 1x6 Straight female header, 0.100”


1 J2 4UCON 5537 DC Power Jack, 2.0 mm center conductor

1 J3 4UCON 9558 USB Mini-AB connector

1 L1 Johanson Tech-nology

L-14C3N3SV4T 3.3 nH RF inductor

1 L2 Taiyo Yuden HK10057N5J-T 7.5 nH1 L3 Panasonic ELJ-RE10NGFA 10 nH1 L4 Panasonic ELJ-RE1N5DFA 1.5 nH2 L5, L6 Various 47 uH inductor, 200 mA

3 R1, R2, R11, R22, R23

Various 220 ohms, 0603

1 R5 Various 3.3 kohm, 06032 R6, R7 Various 1 kohm, 06033 R10, R13, R14 Various 10 kohms, 06032 R15,R16 Various 100 kohms, 06034 R17, R18, R19, R20 Various 0 ohms, 06031 SW1 Various 2-input DIP switch1 S1 Various Right angle slide switch

1 S2 Various SMD SPST Tactile Switch/Pushbutton

1 U2 TI CC1190 900 MHz RF Front End IC

1 U3 Microchip TC1264-3.3 3.3V Regulator1 U4 Atmel AT86RF212 900 MHz, 802.15.4 radio2 U5, U8 Holtek HT7750A Voltage level converter1 U6 Fairchild Semi FXMA108 5V Boost Converter

1 U7 Atmel ATMEGA328-QFP32

AVR Microcontroller

1 U9 FTDI FT231XS USB to Serial Converter1 VR1 NJRC NJM2391- 5.0 5.0V Regulator

1 Y1 NDK NX3225SA, 15PPM

16 MHz crystal, 15 ppm

Date post:	09-Mar-2020
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