Datasheet - Pycom Documentation€¦ · 11.2 RAM 11 11.3 ROM and eFuses 11 ... – Nano-gateway: Up...

DatasheetVersion 1.0

02Version 1.0

1.0 Overview 03

2.0 Features 03

3.0 Specifications 04

3.1 CPU 043.2 Memory 043.3 WiFi 043.4 Bluetooth 043.5 LoRa 043.6 RTC 043.7 Security 043.8 Hash/encryption 04

4.0 BlockDiagram 04

5.0 Pinout 05

6.0 PinDetails 06

6.1 RemappingPins 07

7.0 ESP32Peripherals 08

7.1 RTC 08

8.0 Programmingthedevice 09

8.1 UART 098.2 Wi–Fi 098.2.1 Telnet 098.2.2 FTP 09

9.0 Bootmodes 09

9.1 Bootloadermode 099.2 Safeboot 09

10.0 Power 10

10.1 Currentconsumptionbypower modes/featuresmeasuredat5V 10

10.2 Deepsleep 10

11.0 MemoryMap 11

11.1 Flash 1111.2 RAM 1111.3 ROMandeFuses 11

12.0 WiFi 12

12.1 Supportedfeatures 1212.2 Specifications 12

13.0 Bluetooth 13

13.1 Supportedfeatures 1313.2 Specification 1313.2.1 Receiver–BasicDataRate 1313.2.2 Receiver–EnhancedDataRate 1413.2.3 Receiver–BluetoothLE 1513.2.4 Transmitter–BasicDataRate 1613.2.5 Transmitter–EnhancedDataRate 1713.2.6 Transmitter–BluetoothLE 18

14.0 LoRa 18

14.1 Supportedfeatures 1814.2 Specifications 1914.2 Specifications 20

15.0 6LoWPAN 24

16.0 ElectricalCharacteristics 24

16.1 Absolutemaximumratings 2416.2 Input/Outputcharacteristics 24

17.0 MinimumRecommendedCircuit 25

18.0 MechanicalSpecifications 26

19.0 RecommendedLandPatterns 26

19.1 Throughhole 2619.2 Surfacemount (LoPywithoutheadersonly) 27

20.0 SolderingProfile 28

20.1 Withheaders 2820.2 Withoutheaders 28

21.0 OrderingInformation 29

22.0 Packaging 29

23.0 Certification 30

23.1 EURegulatoryConformance 3023.2 FederalCommunicationCommission

InterferenceStatement 3023.2.1 RFWarningStatement 3023.2.2 OEMintegratorconditions 3023.2.3 EndProductLabelling 3123.2.4 ManualInformationtotheEndUser 31

24.0 RevisionHistory 31

03Version 1.0

1.0 Overview

WithLoRa,WifiandBLE,theLoPyistheonlytriplebearerMicroPythonenabledmicrocontrolleronthemarkettoday–theperfectenterprisegradeIoTplatformforyourconnectedThings.WiththelatestEspressifchipsettheLoPyoffersaperfectcombinationofpower,friendlinessandflexibility.Createandconnectyourthingseverywhere.Fast.

2.0 Features

– PowerfulCPU,BLEandstateoftheartWiFiradio.1KMWifiRange

– CanalsodoubleupasaNanoLoRagateway – MicroPythonenabled – Fitsinastandardbreadboard(withheaders) – Ultra–lowpowerusage:afractioncomparedto otherconnectedmicrocontrollers

– Availablewithorwithoutpinheaderssolderedon

Size 55mmx20mmx3.5mm (excludingheaders)

Operatingtemperature: –40to85degreescelsius

LoRa transceiver

ESP32DualCoreMicrocontrollerand WiFi/Bluetooth4.2radio

ExternalLoRa antenna connector

WS2812RGBmulti–colourLED

3V3Ultra–Low–Noiseswitchingregulator

32Mbit flash memory

U.FLconnectorResetswitch

RFswitch

InternalWiFiandBluetoothAntenna

04Version 1.0

3.0 Specifications

3.1 CPU – Xtensa®dual–core32–bitLX6microprocessor(s),upto600DMIPS

– Hardwarefloatingpointacceleration – Pythonmulti–threading – AnextraULP–coprocessorthatcanmonitorGPIOs,theADCchannelsandcontrolmostoftheinternalperipheralsduringdeep–sleepmodewhileonlyconsuming25uA.

3.2 Memory – RAM:512KB – Externalflash:4MB

3.3 WiFi – 802.11b/g/n16mbps

3.4 Bluetooth – Lowenergyandclassic

3.5 LoRa – LoRaWAN1.0.2stack-ClassAandCdevices – Noderange:Upto40km – Nano-gateway:Upto22km(Capacityupto100nodes)

3.6 RTC – Runningat150kHz

3.7 Security – SSL/TLSsupport – WPAEnterprisesecurity

3.8 Hash/encryption – SHA – MD5 – DES – AES

4.0 BlockDiagram

Figure 1 – System block diagram

05Version 1.0

5.0Pinout

Figure 2 – Module pinout diagram

Note:TheESP

32supportsremappingitsperipheralstoalternativepins.Seebelow

foradetailedlist.

FCC ID: 2AJMTLO

PY1R

Model: LoPy1.0

WiFi

BluetoothLoRa

Reset ButtonWS2812 LED

WiFi / Bluetooth External Antenna Connector

LoRa External Antenna Connector

22/03/18

Pinout diagram

GND3V3

409

412324213416382218203942

171415131210118765

P0P1P2P3P4

P8P9P10

RX0TX0

TX1RX1

PROGRAMPort

SDASCL

P11P12

CLKMOSI MISO

P23P22P21P20P19P18P17

CLKMOSIMISO

P16P15P14P13

ADC2_6ADC2_8ADC2_9ADC1_5ADC1_4ADC1_6ADC1_7ADC1_3ADC1_2ADC1_1ADC1_0ADCPA

ADCPA

EMACTXD2U0TXD

U0CTS

U0RTSVSPIWPVSPIHD

MTCKMTDI

VSPIQ

VSPICS0MTD0HSPICS0

HSPIWPHSPIQHSPIID

SDDATA2SDDATA3

HS2DATA2HS2DATA3

HSPIHDSDCMD

SDDATA1HS2CMDHS1DATA6

HS2DATA1CLKOUT1RGB_LEDCLKOUT3CLKOUT2 U0RXD

EMACRXD0EMACRXD1

EMACTXCLKEMACRXD2

EMACTXEREMACRXD3EMACRXCLKEMACRXDVEMACTXD0

EMACTXD3EMACRXEREMACTXD1EMACTXEN

ADC2_1ADC2_0ADC2_3

ADC2_7

ADC2_2ADC2_5ADC2_4

RTCIO16RTCIO6RTCIO7RTCIO8RTCIO9RTCIO4RTCIO5RTCIO3RTCIO2RTCIO1RTCIO0

RTCIO11RTCIO10RTCIO13

RTCIO17

RTCIO12RTCIO15RTCIO14

Touch1Touch0Touch3

Touch6 MTMS HSPICLK SDCLK HS2CLKDAC_1DAC_2

Touch8Touch9Touch7

Touch2Touch5Touch4

ChipPURSTGPIO3GPIO1GPIO0GPIO4GPIO15GPIO5GPIO27GPIO19GPIO2GPIO12GPIO13GPIO22GPIO21

GPIO14GPIO25GPIO26GPIO33GPIO32GPIO34GPIO35GPIO39GPIO38GPIO37GPIO36

XTAL32XTAL32VDET1VDET2SensVNSensCNSensCPSensVP

!Only Input pins!No pullup/pulldown internal resistance

!

Absolute MAX per pin 12mArecommended 6mA!

PowerGNDSerial PinAnalog PinControlPhysical PinPort PinTouch PinDAC PinPWM Pin

Distributed and manufactured by Pycom Ltd. Registered office:High Point, 9 Sydenham Road, Guildford, Surrey GU1 3RX, UKCopyright © 2017 by Pycom Ltd. All rights reserved. No part of this

document may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of Pycom Ltd, except in the case of brief quotations

embodied in critical reviews and certain other noncommercial uses permitted by copyright law.

To order contact [email protected]

Low Level BootloaderP2 + GND

Boot modes and safe bootP12 + 3V3

1-3 sec Safe boot, latest firmware is selected

4-6 sec Safe boot, previous user update selected

7-9 sec Safe boot, the factory firmware is selected

Hack your LoPy

Connect to a 10nF capacitor to enable Touch Pin function

Connected to LoRa module

!

SDDATA0

35 VSPICLK HS1DATA7GPIO1825 EMACCLKOUT U2RXD HS1DATA4GPIO1636 VSPIID HS1STROBEGPIO2327 EMACCO180 U2TXD HS1DATA5GPIO17

LoRa ResetExternal Antenna SwitchLoRa InterruptLoRa Select

Internal Functions

Vin (3.5-5.5V)

Up to 1.2-A Maximum Load Capability. Output ONLY.

06Version 1.0

6.0 PinDetails

Table 1 – Module pinout

Module Pin

ESP32 GPIO

PinName

DefaultFunction ADC PWM RTC† Notes

1 – ResetActiveLow,connectedtoon–boardbutton

2 3 P0RX0 (Programming)

Usedbythebootloaderandtoprogramthemodule

3 1 P1TX0(Programming)

Usedbythebootloaderandtoprogramthemodule

4 0 P2 2*IftiedtoGNDduringbootthedevicewillenterbootloadermode.Connectedtotheon–boardRGBLED

5 4 P3 TX1 2*

6 15 P4 RX1 2* JTAGTDO,SDcardCMD

7 5 – LoRaradioSPICLK Notrecommendedforexternaluse

8 27 –LoRaradioSPIMOSI

2* Notrecommendedforexternaluse

9 19 –LoRa/SigfoxradioSPIMISO

Notrecommendedforexternaluse

10 2 P8 2* SDcardDAT0

11 12 P9 SDA 2* JTAGTDI

12 13 P10SCL(I2C)/CLK(SPI)

2* JTAGTCK

13 22 P11 MOSI

14 21 P12Iftiedto3.3Vduringbootthedeviceenterssafebootmode,JTAGMISO

15 36 P13 1 Inputonly

16 37 P14 MISO 1 Inputonly

17 38 P15 1Inputonly,notrecommendedforexternaluse



07Version 1.0

6.0 PinDetails

Table 1 – Module pinout

Module Pin

ESP32 GPIO

PinName

DefaultFunction ADC PWM RTC† Notes


21 32 P19 1

22 33 P20 1

23 26 P21 2* DAC

24 25 P22 2* DAC

25 14 P23 2* JTAGTMS,SDcardSCLK

26 – –Regulated3.3Vsupply

Outputonly,donotfeed3.3Vintothispinoryoucandamagetheregulator

27 – – Ground

28 – – VoltageInput Acceptsavoltagebetween3.5Vand5.5V

– 18 – LoRa reset

– 16 –ExternalWiFi/BTantennaswitch,Low=on–board,High=U.FL

– 23 – LoRaradiointerrupt

– 17 – LoRaradiochipselect

†ThepinsontheRTCpowerdomaincanbeusedduringdeepsleep,specificallyGPIOpinswillmaintaintheirstatewhileindeepsleep.

*ADC2iscurrentlynotsupportedinthemicropythonfirmware

6.1 RemappingPins TheESP32featurescomprehensivepinremapping

functionality.ThisallowsperipheralstobemappedontoalmostanyavailableGPIOpins.Theabovetablemerelyshowsthedefaultassignments.Forexample,thedefaultmappinghastheSPIandI2Cclocksoverlapping,

meaningbothcannotbeusedsimultaneouslywithoutremappingonetoadifferentpin.Foradetailedguideofwhatperipheralcanbeassignedtowhatpinspleaseread“AppendixA–ESP32PinLists”oftheESP32datasheet.

08Version 1.0

7.0 ESP32Peripherals

Table 2 – Peripherals

*RequiresanexternalCANbustransceiver,werecommendtheSN65HVD230fromTexasInstruments.

Peripheral Count Pins

UART 3RemappabletoanyGPIO. Note:P13–18canonlybemappedtoRXorCTSsincetheyareinputonly.

I2C 2 RemappabletoanyGPIOexceptP13–18sincetheyareinputonlyandI2Cisbi–directional.

SPI 3RemappabletoanyGPIO. Note:P13–18canonlybemappedtoMISOsincetheyareinputonly.

CAN* 1RemappabletoanyGPIO. Note:P13–18canonlybemappedtoRXsincetheyareinputonly.

JTAG 1 TDO=P4,TDI=P9,TCK=P10,TMS=P24

PWM 1 AllGPIOexceptP13–18whichareinputonly

ADC 18 Fixedmapping,seeTable1,OnlyADC1issupportedinourmicropythonfirmware.

DAC 2 OnlyavailableonP21andP22

SD 1 DAT0=P8,SCLK=P23,CMD=P4

Figure 3 – External RTC crystal circuits

ForamoredetaileddescriptionoftheESP32peripheralsalongwithperipheralsnotcurrentlysupportedbyourfirmware,pleasechecktheESP32datasheet.

7.1 RTC OurmodulesbydefaultallusetheinternalRCoscillator

at150kHzfortheRTC.Ifyourequirebetteraccuracy/stabilityyoucanconnecta32.768kHzcrystal(orTCXO)externallyonpinsP19andP20(orP19foraTXCO)

09Version 1.0

8.0 Programmingthedevice

8.1 UART Bydefault,themodulesrunaninteractivepythonREPL

onUART0whichisconnectedtoP0(RX)andP1(TX)runningat115200baud.TheeasiestwaytoconnecttotheLoPyisviaourexpansionboard,butanyUSBUARTadapterwillsuffice.CodecanberunviathisinteractiveREPLoryoucanuseourPyMakrpluginforAtomorVisualStudioCodetouploadcodetotheboard.

8.2 Wi–Fi Bydefault,theLoPyalsoactsasaWi–Fiaccesspoint. SSID:lopy–wlan–XXXX Password:www.pycom.io OnceconnectedtotheLoPy’sWi–Finetworkyoucan

accessitintwoways.

8.2.1 Telnet Runningonport23isatelnetserver.Thisactsina

verysimilarwaytotheUART.ItpresentsyouwithaninteractiveREPLandcanalsobeusedtouploadcodeviaPyMakr.

8.2.2 FTP TheLoPyalsorunsaFTPserverthatallowsyoutocopy

filestoandfromthedevice,includeanSDcardifoneisconnected.ToconnecttothisFTPserver,youneedtouseplainFTP(un–encrypted)withthefollowingcredentials: User:micro Password:python

9.0 Bootmodes

9.1 Bootloadermode InordertoupdatethefirmwareoftheLoPydevice,it

needstobeplacedintobootloadermode.Inordertodothis,P2needstobeconnectedtogroundwhenthedevicereboots.OnceinbootloadermodeyoucanusethePycomfirmwareupdatetooltoupdatetothelatestofficialfirmware.Ifyouaredevelopingyourownfirmwarebasedonouropen–sourcefirmware,aflashingscriptisprovidedwiththesourcecode.

9.2 Safeboot Themicropythonfirmwarefeaturesasafebootfeature

thatskipstheboot.pyandmain.pyscriptsandgoesstraighttotheREPL.Thisisusefulifthedeviceisprogrammedwithcodethatcausesthedevicetocrashorbecomeinaccessible.Toaccessthismode,youneedtoconnectP12to3.3Vandresetthedevice.Uponenteringsafebootmode,theon–boardLEDwillbegintoblinkorange.Dependingonthedurationthepinisheldat3.3V,adifferentfirmwarewillberun.

Table 3 – Boot modes

0–3Seconds 3–6Seconds

Currentfirmwarewithoutrunning boot.pyormain.py

PreviousfirmwareifthefirmwarewasuploadedviaOTA (withoutrunningboot.pyandmain.py)

10Version 1.0

10.1 Currentconsumptionbypowermodes/featuresmeasuredat5V

10.2 Deepsleep DuetoacoupleissueswiththeLoPydesignthemodule

drawsmorecurrentthanitshouldwhileindeepsleep.TheDC–DCswitchingregulatoralwaysstaysinhighperformancemodewhichisusedtoprovidethelowestpossibleoutputripplewhenthemodulesisinuse.Inthismode,itdrawsaquiescentcurrentof10mA.WhentheregulatorisputintoECOmode,thequiescentcurrentgoesdownto10uA.Unfortunately,thepinusedtocontrolthismodeisoutoftheRTCdomain,andthereforenotusableduringdeepsleep.ThiscausestheregulatortoalwaysstayinPWMmode,keepingitsquiescentcurrent

at10mA.Alongsidethistheflashchipdoesn’tenterpowerdownmodebecausetheCSpinisfloatingduringdeepsleep.Thiscausestheflashchiptoconsumearound2mAofcurrent.OnlytheWiPY2.0,LoPy1.0andSiPy1.0areaffectedbytheseissues.Toworkaroundthisissuea“deepsleepshield”isavailablethatattachestothemoduleandallowspowertobecutofffromthedevice.Thedevicecanthenbere–enabledeitheronatimerorviapininterrupt.Withthedeepsleepshieldthecurrentconsumptionduringdeepsleepisbetween7uAand10uAdependingonthewakesourcesconfigured.

10.0 Power

TheLoPyfeaturesanon–boardvoltageregulatorthattakes3.5V–5.5VfromtheVINpinandregulatesitto 3.3V.Itisimportanttoonlyusethe3.3Vasanoutput andnottrytofeed3.3Vintothispinasthiscould damagetheregulator.

Table 4 – Power consumption by feature

†Moredetailscanbefoundinsection14.2

* See section 10.2

Mode Min Avg. Max Units

Idle(noradios) – 37 – mA

LoRaTransmit† – 92.6 – mA

WiFiAP – 96.5 – mA

WiFiclient – 107.3 – mA

Bluetooth – 94 – mA

Deepsleep* – 15.1 – mA

Deepsleepwithshield – 531 – μA

11Version 1.0

11.0 MemoryMap

11.1 Flash

11.2 RAM

11.3 ROMandeFuses

Table 5 – Flash memory map

Table 6 – RAM memory map

Table 7 – Miscellaneous memory

Name Description Startaddress Size

NVS Non–volatileRAMarea.UsedbytheNVSAPI 0x9000 0x7000

FirmwareSlot0 Firstfirmwareslot.Factoryfirmwareisflashedhere 0x10000 0x180000

OTAinfo Informationaboutthecurrentactivefirmware 0x190000 0x1000

FirmwareSlot1 Secondfirmwareslot 0x1A0000 0x180000

Filesystem 504KBfilesystemondeviceswith4MBflash 0x380000 0x7F000

Config ConfigareaforLoRa,SigfoxandLTE 0x3FF000 0x1000

Name Description Size

On–chipSRAM InternalRAMmemoryusedbythe2xtensaCPUs 520KB

FastRTCRAMFastRAMareaaccessiblebythextensacoresduringbootandsleepmodes

8KB

SlowRTCRAMSlowRAMareaaccessiblebytheUltra–LowPowerCoprocessorduringdeepsleep

8KB

Name Description Size

On–chipROM Containscorefunctionsandbootcode. 448KB

eFuse

256bitsareusedforthesystem(MACaddressandchipconfiguration)andtheremaining768bitsarereservedforcustomerapplications,includingFlash–EncryptionandChip–ID

1kbit

12Version 1.0

12.0 WiFi

12.1 Supportedfeatures – 802.11b/g/n/e/i – 802.11n(2.4GHz),upto150Mbps – 802.11e:QoSforwirelessmultimediatechnology – WMM–PS,UAPSD – A–MPDUandA–MSDUaggregation – BlockACK – Fragmentationanddefragmentation

– AutomaticBeaconmonitoring/scanning – 802.11isecurityfeatures:pre–authenticationandTSN – Wi–FiProtectedAccess(WPA)/WPA2/WPA2–Enterprise/Wi–FiProtectedSetup(WPS)

– InfrastructureBSSStationmode/SoftAPmode – Wi–FiDirect(P2P),P2PDiscovery,P2PGroupOwnermodeandP2PPowerManagement

12.2 Specifications

Table 8 – WiFi specifications

Description Min Typ. Max Unit

InputFrequency 2412 – 2484 MHz

TxpowerOutputpowerofPAfor72.2Mbps

13 14 15 dBm

OutputpowerofPAfor11bmode 19.5 20 20.5 dBm

Sensitivity

DSSS,1Mbps – – 98 dBm

CCK,11Mbps – – 91 dBm

OFDM,6Mbps – – 93 dBm

OFDM,54Mbps – – 75 dBm

HT20,MCS0 – – 93 dBm




MCS32 – – 89 dBm

Adjacentchannelrejection

OFDM,6Mbps – 37 – dB

OFDM,54Mbps – 21 – dB

HT20,MCS0 – 37 – dB

HT20,MCS7 – 20 – dB

13Version 1.0

13.0 Bluetooth

13.1 Supportedfeatures – CompliantwithBluetoothv4.2BR/EDRandBLEspecification

– Class–1,class–2andclass–3transmitterwithoutexternalpoweramplifier

– Enhancedpowercontrol – +12dBmtransmittingpower – NZIFreceiverwith–97dBmsensitivity – AdaptiveFrequencyHopping(AFH) – StandardHCIbasedonSDIO/SPI/UART – High–speedUARTHCI,upto4Mbps – BT4.2controllerandhoststack

– ServiceDiscoverProtocol(SDP) – GeneralAccessProfile(GAP) – SecurityManageProtocol(SMP) – ATT/GATT – HID – AllGATT–basedprofilesupported – SPP–likeGATT–basedprofile – BLEBeacon – A2DP/AVRCP/SPP,HSP/HFP,RFCOMM – CVSDandSBCforaudiocodec – BluetoothPiconetandScatternet

13.2 Specification

13.2.1 Receiver–BasicDataRate

Table 9 – Receiver (basic data rate) specifications

Parameter Min Typ. Max Unit

[email protected]%BER – –94 – dBm

[email protected]%BER 0 – – dBm

Co–channelC/I – +7 – dB

AdjacentchannelselectivityC/I

F=F0+1MHz – – –6 dB

F=F0–1MHz – – –6 dB

F=F0+2MHz – – –25 dB

F=F0–2MHz – – –33 dB

F=F0+3MHz – – –25 dB

F=F0–3MHz – – –45 dB

Out–of–bandblockingperformance

30Mhz ~ 2000MHz –10 – – dBm

2000MHz ~ 2400MHz

–27 – – dBm

2500MHz ~ 3000MHz

–27 – – dBm

3000MHz ~ 12.5GHz

–10 – – dBm

Intermodulation –36 – – dBm

14Version 1.0

Table 10 – Receiver (basic data rate) specifications

13.2.2 Receiver–EnhancedDataRate


π/4DQPSK


[email protected]%BER – 0 – dBm

Co–channelC/I – 11 – dB


F=F0+1MHz – –7 – dB

F=F0–1MHz – –7 – dB

F=F0+2MHz – –25 – dB

F=F0–2MHz – –35 – dB

F=F0+3MHz – –25 – dB

F=F0–3MHz – –45 – dB

8DPSK



C/Ic–channel – 18 – dB


F=F0+1MHz – 2 – dB

F=F0–1MHz – 2 – dB

F=F0+2MHz – –25 – dB

F=F0–2MHz – –25 – dB

F=F0+3MHz – –25 – dB

F=F0–3MHz – –38 – dB

15Version 1.0

Table 11 – Receiver (BLE) specifications

13.2.3 Receiver–BluetoothLE


[email protected]%PER – –97 – dBm

[email protected]%PER 0 – – dBm

Co–channelC/I – +10 – dB


F=F0+1MHz – –5 – dB

F=F0–1MHz – –5 – dB

F=F0+2MHz – –25 – dB

F=F0–2MHz – –35 – dB

F=F0+3MHz – –35 – dB

F=F0–3MHz – –45 – dB

Out–of–bandblockingperformance

30MHz ~ 2000MHz

–10 – – dB

2000MHz ~ 2400MHz

–27 – – dBm

2500MHz ~ 3000MHz

–27 – – dBm

3000MHz ~ 12.5GHZ

–10 – – dBm

Intermodulation –36 – – dBm

16Version 1.0

Table 12 – Transmitter (basic data rate) specifications

13.2.4 Transmitter–BasicDataRate


RFtransmitpower – 0 – dBm

Gaincontrolstep – ±3 – dBm

RFpowercontrolrange –12 – +12 dBm

+20dBbandwidth – 0.9 – MHz

Adjacentchanneltransmitpower

F=F0+1MHz – –24 – dBm

F=F0–1MHz – –16.1 – dBm

F=F0+2MHz – –40.8 – dBm

F=F0–2MHz – –35.6 – dBm

F=F0+3MHz – –45.7 – dBm

F=F0–3MHz – –40.2 – dBm

F=F0+>3MHz – 45.6 – dBm

F=F0–>3MHz – 44.6 – dBm

Δf1avg – – 155 KHz

Δf2max 133.7 KHz

Δf2avg/Δf1avg – 0.92 – –

ICFT – –7 – KHz

Driftrate – 0.7 – KHz/50μs

Drift(1slotpacket) – 6 – KHz

Drift(5slotpacket) – 6 – KHz

17Version 1.0

Table 13 – Transmitter (enhanced data rate) specifications

13.2.5 Transmitter–EnhancedDataRate





π/4DQPSKmaxw0 – –0.72 – KHz

π/4DQPSKmaxwi – –6 – KHz

π/4DQPSKmax|wi+w0| – –7.42 – KHz

8DPSKmaxw0 – 0.7 – KHz

8DPSKmaxwi – –9.6 – KHz

8DPSKmax|wi+w0| –10 KHz

π/4DQPSKmodulationaccuracy

RMSDEVM – 4.28 – %

99%DEVM – – 30 %

PeakDEVM – 13.3 – %

8DPSKmodulationaccuracy

RMSDEVM – 5.8 – %

99%DEVM – 20 %

PeakDEVM – 14 – %

In–bandspuriousemissions

F=F0+1MHz – –34 – dBm

F=F0–1MHz – –40.2 – dBm

F=F0+2MHz – –34 – dBm

F=F0–2MHz – –36 – dBm

F=F0+3MHz – –38 – dBm

F=F0–3MHz – –40.3 – dBm

F=F0±>3MHz – – –41.5 dBm

EDRdifferentialphasecoding – 100 – %

18Version 1.0

Table 14 – Transmitter (BLE) specifications

13.2.6 Transmitter–BluetoothLE

14.0 LoRa

14.1 Supportedfeatures

Table 15 – Supported LoRa features

ThecurrentmicropythonfirmwaresupportsLoRaWAN1.0actingaseitheraClassAorClassCnode.





Adjacentchanneltransmitpower

F=F0+1MHz – –14.6 – dBm

F=F0–1MHz – –12.7 – dBm

F=F0+2MHz – –44.3 – dBm

F=F0–2MHz – –38.7 – dBm

F=F0+3MHz – –49.2 – dBm

F=F0–3MHz – –44.7 – dBm

F=F0+>3MHz – –50 – dBm

F=F0–>3MHz – –50 – dBm

Δf1avg – – 265 KHz

Δf2max 247 – – KHz

Δf2avg/Δf1avg – –0.92 – –

ICFT – –10 – KHz

Driftrate – 0.7 – KHz/50μs

Drift – 2 – KHz

PartNumber FrequencyRange LoRaParameters

Spreadingfactor

BandwidthEffectiveBitrate

Sensitivity

SemtechSX1272 860–1020MHz 6–12125–500

kHz0.24–37.5

kpbs–117to–137

dBm

19Version 1.0

Table 16 – LoRa modem performance

14.2 Specifications

Bandwidth(KHz) SpreadingFactor NominalRb(bps) Sensitivity(dBm)

125 6 9380 –122

125 12 293 –137

250 6 18750 –119

250 12 588 –134

500 6 37500 –116

500 12 1172 –131

20Version 1.0

Table 17 – LoRa electrical characteristics

Symbol Description Conditions Min Typ. Max Unit

IDDR_LSupplycurrentinreceiverLoRamode

LNABoostOff,BW=125KHz – 9.7 – mA

LNABoostOff,BW=250KHz – 10.5 – mA

LNABoostOff,BW=500KHz – 12 – mA

LNABoostOn,BW=125KHz – 10.8 – mA

LNABoostOn,BW=250KHz – 11.6 – mA

LNABoostOn,BW=500KHz – 13 – mA

IDDT_LSupplycurrentintransmittermode

RFOP=13dBm – 28 – mA

RFOP=7dBm – 18 – mA

IDDT_H_LSupplycurrentintransmittermodewithanexternalimpedancetransformer

UsingPA_BOOSTpin

RFOP=17dBm– 90 – mA

BI_LBlockingImmunity,FRF=868MHzCWinterferer

Offset=±1MHz – 82.5 – dB

Offset=±2MHz – 86.5 – dB

Offset=±10MHz – 89 – dB

IIP3_L3rdorderinputinterceptpoint,highestLNAgain,FRF=868MHz,CWinterferer

F1=FRF+1MHz

F2=FRF+1.995MHz– –12.5 – dBm

IIP2_L2ndorderinputinterceptpoint,highestLNAgain,FRF=868MHz,CWinterferer

F1=FRF+20MHz

F2=FRF+20MHz+Δf– 57 – dBm

BR_L Bitrate,Long–RangeModeFromSF6,CR=4/5,BW=500kHztoSF12,CR=4/8,BW=125kHz

0.24 – 37.5 kbps

14.2 Specifications

21Version 1.0


RFS_L125

RFsensitivity,Long–RangeMode,highestLNAgain,LNAboost,125kHzbandwidthusingsplitRx/Txpath

SF=6 – –121 – dBm

SF=7 – –124 – dBm

SF=8 – –127 – dBm

SF=9 – –130 – dBm

SF=10 – –133 – dBm

SF=11 – –135 – dBm

SF=12 – –137 – dBm

RFS_L250


SF=6 – –118 – dBm

SF=7 – –122 – dBm

SF=8 – –125 – dBm

SF=9 – –128 – dBm

SF=10 – –130 – dBm

SF=11 – –132 – dBm

SF=12 – –135 – dBm

RFS_L500


SF=6 – –111 – dBm

SF=7 – –116 – dBm

SF=8 – –119 – dBm

SF=9 – –122 – dBm

SF=10 – –125 – dBm

SF=11 – –128 – dBm

SF=12 – –129 – dBm


14.2 Specifications

22Version 1.0


CCR_LCW

SF=7 – 5 – dB

SF=8 – 9.5 – dB

SF=9 – 12 – dB

SF=10 – 14.4 – dB

SF=11 – 17 – dB

SF=12 – 19.5 – dB

CCR_LL Co–channelrejectionInterfererisaLoRasignalusingthesameBWandSF.Pw=sensitivity+3dB

– –6 – dB

ACR_LCWAdjacentchannelrejectionFRF=868MHz

Interfereris1.5*BW_Lfromthewantedsignalcentrefrequency1%PER,SingleCWtone=Sensitivity+3dB

SF=7 – 60 – dB

SF=12 – 72 – dB

IMR_LCWImagerejectionaftercalibration

1%PER,SingleCWtone=sensitivity+3dB

– 66 – dB

FERR_L

Maximumtoleratedfrequencyoffsetbetweentransmitterandreceiver,nosensitivitydegradation

BW_L=125kHz –30 – 30 kHz

BW_L=250kHz –60 – 60 kHz

BW_L=500kHz –120 – 120 kHz


14.2 Specifications

23Version 1.0

Table 18 – LoRa power consumption


IDDSL Supplycurrentinsleepmode – 0.1 1 μA

IDDIDLE Supplycurrentinidlemode RCoscillatorenabled – 1.5 – μA

IDDSTSupplycurrentinstandbymode

Crystaloscillatorenabled – 1.4 1.6 mA

IDDFSSupplycurrentinsynthesizermode

FSRx – 4.5 – mA

IDDRSupplycurrentinreceivemode

LnaBoostOff – 10.5 – mA

LnaBoostOn – 11.2 – mA

IDDTSupplycurrentintransmitmodewithimpedancematching

RFOP=+20dBmonPA_BOOST – 125 – mA

RFOP=+17dBmonPA_BOOST – 90 – mA

RFOP=+13dBmonRFOpin – 28 – mA

RFOP=+7dBmonRFOpin – 18 – mA

14.2 Specifications

24Version 1.0

16.0 ElectricalCharacteristics

16.1 Absolutemaximumratings

16.2 Input/Outputcharacteristics

Table 19 – Absolute maximum ratings

Table 20 – Input/Output characteristics

Parameter Symbol Min Typ. Max Unit

SupplyInputVoltage VIN 3.5 – 5.5 V

SupplyOutputCurrent IOUT – – 1.2 A

SupplyOutputVoltage V3V3 – 3.3 – V

StorageTemperature TSTR – – – °C

OperatingTemperature TOPR –40 – 85 °C

MoistureSensitivityLevel MSL – 1 – –

Parameter Symbol Min Typ. Max Unit

Inputlowvoltage VIL –0.3 – 0.25×V3V3 V

Inputhighvoltage VIH 0.75×V3V3 – V3V3+0.3 V

MaxInputsinkcurrent ISINK – 6 12 mA

Inputleakagecurrent IIL – – 50 nA

Inputpincapacitance Cpin – – 2 pF

Outputlowvoltage VOL 0.1×V3V3 – – V

Outputhighvoltage VOH 0.8×V3V3 – – V

MaxOutputsourcecurrent ISOURCE – 6 12 mA

15.0 6LoWPAN

Pycomiscurrentlyworkingonadding6LoWPANsupporttothismoduleandplantoreleaseanewfirmwarewiththisfunctionalityinQ22018.

25Version 1.0

17.0 MinimumRecommendedCircuit

Figure 4 – Minimum required circuit

26Version 1.0

18.0 MechanicalSpecifications

19.0 RecommendedLandPatterns

19.1 Throughhole

Figure 5 – Mechanical drawing (top down view) – Units: mm

Figure 6 – Mechanical drawing (side view) – Units: mm

Figure 7 – Recommended land pattern (through hole) – Units: mm

P13

P14

P15

P16

P17

P18

P19

P20

P21

P22

P23

3V3

GN

D

VIN

P12

P11

P10

P9

P8

MIS

O

MO

SI

55

2.54 5

10

21.02

17.78

9.72

20

12.25

CLKP

4

P3

P2

P1

P0

RS

T55

4.1

35.3

6.59.9

1.2

Ant

enna

KE

EP

OU

T

55

17.78

9.72 12.25

2.54 2

1.02

17.78

5

10

20

27Version 1.0

19.2 Surfacemount(LoPywithoutheadersonly)

Figure 8 – Recommended land pattern (surface mount) – Units: mm

55

2.54

Ant

enna

KE

EP

OU

T

2

1.5

18

9.72

20

12.25

5

10

28Version 1.0

TheaboveprofileisbasedonAlphaCVP–390solderpaste,whichhasbeensuccessfullytestedwithourdevices.

Table 23– Soldering profile temperatures

Stage Duration/Rate Temperature

Ramptosoak 2°C/s Ambient–185°C

Soak 60s 185°C

Ramptopeak 1°C/s 240°C

Reflow 45s >225°C

Cooldown 2°C/s

20.0 SolderingProfile

20.1 Withheaders Thisdeviceisnotrecommendedforreflowsoldering.

Theplasticofthepinheaderswillmelt,insteadpleasehandsolderthemoduleorusesockets.

20.2 Withoutheaders

Figure 9 – Reflow soldering temperature profile (surface mount)

29Version 1.0

22.0 Packaging

21.0 OrderingInformation

Table 21 – Soldering profile temperatures

Figure 10 – Mechanical drawing of packaging – Units: mm

Themodulewillcomeinsideareusableanti–staticbag.Ifthemodulehasheadersit

willalsobeinsertedintoanti–staticfoam.

Totalweightinc.packaging(withheaders):31g

Totalweightinc.packaging(withoutheaders):29g

Formoreproductaccessorieslikeexpansionboardorcasesvisitourwebsite:http://www.pycom.io

ProductEAN Description

0700461341628 LoPy1.0withHeaders

0700461242727LoPy1.0withoutheaders

0700461341703 LoRa Antenna

0700461341680 ExternalWiFiAntenna

0700461341697 IP67AntennaPigtail

Bundle Contents

LoPyMulti–Pack

1xLoPy 1xExpansionBoardor PysenseorPytrack 1xLoRaantenna

Availableinquantitiesof1,2or5

30Version 1.0

23.0 Certification

FCC 2AJMTLOPY1R CE 0700 Copiesofthecertificatescanbefoundonourwebsite.

RegulatorInformation

23.1 EURegulatoryConformance Hereby,PycomLtddeclaresthatthisdeviceisincompliancewiththeessentialrequirementsandotherrelevant

provisionsofDirective1999/5/EC

23.2 FederalCommunicationCommissionInterferenceStatement ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowingtwoconditions:

1. Thisdevicemaynotcauseharmfulinterference.2. Thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesiredoperation.

CAUTION:Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecouldvoidtheuser’sauthoritytooperatetheequipment.

NOTE:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttoPart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates,usesandcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,theuserisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowingmeasures:

– Reorientorrelocatethereceivingantenna. – Increasetheseparationbetweentheequipmentandreceiver. – Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected. – Consultthedealeroranexperiencedradio/TVtechnicianforhelp.

23.2.1 RFWarningStatement TocomplywithFCCRFexposurecompliancerequirements,theantennasusedforthistransmittermustbeinstalled

toprovideaseparationdistanceofatleast20cmfromallpersonsandmustnotbeco–locatedoroperatinginconjunctionwithanyotherantennaortransmitter.

23.2.2 OEMintegratorconditions ThisdeviceisintendedonlyforOEMintegratorsunderthefollowingconditions:

1. Theantennamustbeinstalledsuchthat20cmismaintainedbetweentheantennaandusers,and2. Thetransmittermodulemaynotbeco–locatedwithanyothertransmitterorantenna.

Aslongasthetwoconditionsabovearemet,furthertransmittertestwillnotberequired.However,theOEMintegratorisstillresponsiblefortestingtheirend–productforanyadditionalcompliancerequirementsrequired withthismoduleinstalled.Toensurecompliancewithallnon–transmitterfunctionsthehostmanufacturerisresponsibleforensuringcompliancewiththemodule(s)installedandfullyoperational.Forexample,ifahostwaspreviouslyauthorizedasanunintentionalradiatorundertheDeclarationofConformityprocedurewithoutatransmittercertifiedmoduleandamoduleisadded,thehostmanufacturerisresponsibleforensuringthatthe afterthemoduleisinstalledandoperationalthehostcontinuestobecompliantwiththePart15Bunintentionalradiatorrequirements.

ThemoduleislimitedtoOEMinstallationONLY.Themoduleislimitedtoinstallationinmobileorfixedapplication.WeherebyacknowledgeourresponsibilitytoprovideguidancetothehostmanufacturerintheeventthattheyrequireassistanceforensuringcompliancewiththePart15SubpartBrequirements.

31Version 1.0

IMPORTANTNOTE:Intheeventthattheseconditionscannotbemet(forexamplecertainlaptopconfigurationsorco–locationwithanothertransmitter),thentheFCCauthorizationisnolongerconsideredvalidandtheFCCIDcannotbeusedonthefinalproduct.Inthesecircumstances,theOEMintegratorwillberesponsibleforre–evaluatingtheendproduct(includingthetransmitter)andobtainingaseparateFCCauthorization.

23.2.3 EndProductLabelling Thistransmittermoduleisauthorizedonlyforuseindevicewheretheantennamaybeinstalledsuchthat20cm

maybemaintainedbetweentheantennaandusers.Thefinalendproductmustbelabelledinavisibleareawiththefollowing:“ContainsFCCID:2AJMTLOPY1R”.Thegrantee’sFCCIDcanbeusedonlywhenallFCCcompliancerequirementsaremet.

ThefollowingFCCpart15.19statementhastoalsobeavailableonthelabel:

ThisdevicecomplieswithPart15ofFCCrules.Operationissubjecttothefollowingtwoconditions:

1. thisdevicemaynotcauseharmfulinterferenceand2. thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesiredoperation.

23.2.4 ManualInformationtotheEndUser TheOEMintegratorhastobeawarenottoprovideinformationtotheenduserregardinghowtoinstallorremove

thisRFmoduleintheuser’smanualoftheendproductwhichintegratesthismodule.

Intheusermanualoftheendproduct,theenduserhastobeinformedthattheequipmentcomplieswithFCCradio–frequencyexposureguidelinessetforthforanuncontrolledenvironment.

Theenduserhastoalsobeinformedthatanychangesormodificationsnotexpresslyapprovedbythemanufacturercouldvoidtheuser’sauthoritytooperatethisequipment.

Theendusermanualshallincludeallrequiredregulatoryinformation/warningasshowinthismanual.

Themaximumoperatingambienttemperatureoftheequipmentdeclaredbythemanufactureris–40~+85C

Receivercategory3

24.0 RevisionHistory

Table 24 – Document revision history

Version1.0 InitialRelease

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