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Particle Photon STM32F205 Wi-Fi 開發套件

  • Particle P0 Wi-Fi module
    • Broadcom BCM43362 Wi-Fi chip
    • 802.11b/g/n Wi-Fi
    • STM32F205 120Mhz ARM Cortex M3
    • 1MB flash, 128KB RAM
  • On-board RGB status LED
  • 18 Mixed0signal GPIO and advanced peripherals
  • Open source design
  • Real-time operating system (FreeRTOS)
  • Soft AP setup
  • FCC, CE and IC certified

代號
particle-photon

SKU 即原廠標號
114990286

定價
800
特價
750 (含營業稅)

有庫存

原廠連結:https://docs.particle.io/datasheets/photon-datasheet/

Model number: PHOTONH, PHOTONNOH

void setup() {
    Particle.publish("my-event","The internet just got smarter!");
}

Functional description

OVERVIEW

Particle's Internet of Things hardware development kit, the Photon, provides everything you need to build a connected product. Particle combines a powerful ARM Cortex M3 micro-controller with a Broadcom Wi-Fi chip in a tiny thumbnail-sized module called the PØ (P-zero).

To get you started quickly, Particle adds a rock solid 3.3VDC SMPS power supply, RF and user interface components to the PØ on a small single-sided PCB called the Photon. The design is open source, so when you're ready to integrate the Photon into your product, you can.

The Photon comes in two physical forms: with headers and without. Prototyping is easy with headers as the Photon plugs directly into standard breadboards and perfboards, and may also be mounted with 0.1" pitch female headers on a PCB. To minimize space required, the Photon form factor without headers has castellated edges. These make it possible to surface mount the Photon directly onto your PCB.

FEATURES

  • Particle PØ Wi-Fi module
    • Broadcom BCM43362 Wi-Fi chip
    • 802.11b/g/n Wi-Fi
    • STM32F205 120Mhz ARM Cortex M3
    • 1MB flash, 128KB RAM
  • On-board RGB status LED (ext. drive provided)
  • 18 Mixed-signal GPIO and advanced peripherals
  • Open source design
  • Real-time operating system (FreeRTOS)
  • Soft AP setup
  • FCC, CE and IC certified

Interfaces

BLOCK DIAGRAM

POWER

Power to the Photon is supplied via the on-board USB Micro B connector or directly via the VIN pin. If power is supplied directly to the VIN pin, the voltage should be regulated between 3.6VDC and 5.5VDC. When the Photon is powered via the USB port, VIN will output a voltage of approximately 4.8VDC due to a reverse polarity protection series schottky diode between V+ of USB and VIN. When used as an output, the max load on VIN is 1A.

Typical current consumption is 80mA with a 5V input. Deep sleep quiescent current is 160uA. When powering the Photon from the USB connector, make sure to use a quality cable to minimize IR drops (current x resistance = voltage) in the wiring. If a high resistance cable (i.e., low current) is used, peak currents drawn from the Photon when transmitting and receiving will result in voltage sag at the input which may cause a system brown out or intermittent operation. Likewise, the power source should be sufficient enough to source 1A of current to be on the safe side.

RF

The RF section of the Photon is a finely tuned impedance controlled network of components that optimize the efficiency and sensitivity of the Wi-Fi communications.

An RF feed line runs from the PØ module into a SPDT RF-switch. Logic level control lines on the PØ module select which of the two ports of the RF-switch is connected to the RF feed line. A 100pF decoupling capacitor is located on each control line. One port is connected to a PCB ceramic chip antenna, and the other is connected to a u.FL connector for external antenna adaptation. The default port will be set to the chip antenna.

Additionally, a user API is available to switch between internal, external and even an automatic mode which continuously switches between each antenna and selects the best signal. All three RF ports on the RF-switch have a 10pF RF quality DC-blocking capacitor in series with them. These effectively pass 2.4GHz frequencies freely while blocking unwanted DC voltages from damaging the RF-switch. All RF traces are considered as tiny transmission lines that have a controlled 50 ohm impedance.

The chip antenna is impedance matched to the 50 ohm RF feed line via a Pi network comprised of three RF inductors (1 series, 2 shunt). These values are quite specific to the Photon due to the PCB construction and layout of the RF section. Even if the Photon's layout design is copied exactly, to achieve the best performance it would be worth re-examining the Pi network values on actual samples of the PCB in question.

FCC APPROVED ANTENNAS

Antenna Type Manufacturer MFG. Part # Gain
Dipole antenna LumenRadio 104-1001 2.15dBi
Chip antenna Advanced Ceramic X AT7020-E3R0HBA 1.3dBi

PERIPHERALS AND GPIO

The Photon has ton of capability in a small footprint, with analog, digital and communication interfaces.

Peripheral Type Qty Input(I) / Output(O) FT[1] / 3V3[2]
Digital 18 I/O FT/3V3
Analog (ADC) 8 I 3V3
Analog (DAC) 2 O 3V3
SPI 2 I/O 3V3
I2S 1 I/O 3V3
I2C 1 I/O FT
CAN 1 I/O FT
USB 1 I/O 3V3
PWM 93 O 3V3

Notes:

[1] FT = 5.0V tolerant pins. All pins except A3 and DAC are 5V tolerant (when not in analog mode). If used as a 5V input the pull-up/pull-down resistor must be disabled.

[2] 3V3 = 3.3V max pins.

[3] PWM is available on D0, D1, D2, D3, A4, A5, WKP, RX, TX with a caveat: PWM timer peripheral is duplicated on two pins (A5/D2) and (A4/D3) for 7 total independent PWM outputs. For example: PWM may be used on A5 while D2 is used as a GPIO, or D2 as a PWM while A5 is used as an analog input. However A5 and D2 cannot be used as independently controlled PWM outputs at the same time.

JTAG

Pin D3 through D7 are JTAG interface pins. These can be used to reprogram your Photon bootloader or user firmware image with standard JTAG tools such as the ST-Link v2, J-Link, R-Link, OLIMEX ARM-USB-TINI-H, and also the FTDI-based Particle JTAG Programmer.

Photon Pin Description STM32 Pin PØ Pin # PØ Pin Name Default Internal[1]
D7 JTAG_TMS PA13 44 MICRO_JTAG_TMS ~40k pull-up
D6 JTAG_TCK PA14 40 MICRO_JTAG_TCK ~40k pull-down
D5 JTAG_TDI PA15 43 MICRO_JTAG_TDI ~40k pull-up
D4 JTAG_TDO PB3 41 MICRO_JTAG_TDO Floating
D3 JTAG_TRST PB4 42 MICRO_JTAG_TRSTN ~40k pull-up
3V3 Power        
GND Ground        
RST Reset      

Notes: [1] Default state after reset for a short period of time before these pins are restored to GPIO (if JTAG debugging is not required, i.e. USE_SWD_JTAG=y is not specified on the command line.)

A standard 20-pin 0.1" shrouded male JTAG interface connector should be wired as follows:

EXTERNAL COEXISTENCE INTERFACE

The Photon supports coexistence with Bluetooth and other external radios via the three gold pads on the top side of the PCB near pin A3. These pads are 0.035" square, spaced 0.049" apart. This spacing supports the possibility of tacking on a small 1.25mm - 1.27mm pitch 3-pin male header to make it somewhat easier to interface with.

When two radios occupying the same frequency band are used in the same system, such as Wi-Fi and Bluetooth, a coexistence interface can be used to coordinate transmit activity, to ensure optimal performance by arbitrating conflicts between the two radios.

Pad # PØ Pin Name PØ Pin # I/O Description
1 BTCX_RF_ACTIVE 9 I Signals Bluetooth is active
2 BTCX_STATUS 10 I Signals Bluetooth priority status and TX/RX direction
3 BTCX_TXCONF 11 O Output giving Bluetooth permission to TX

When these pads are programmed to be used as a Bluetooth coexistence interface, they're set as high impedance on power up and reset. Alternatively, they can be individually programmed to be used as GPIOs through software control. They can also be programmed to have an internal pull-up or pull-down resistor.

Pin and button definition

PIN MARKINGS

PIN DESCRIPTION

Pin Description
VIN This pin can be used as an input or output. As an input, supply 3.6 to 5.5VDC to power the Photon. When the Photon is powered via the USB port, this pin will output a voltage of approximately 4.8VDC due to a reverse polarity protection series schottky diode between VUSB and VIN. When used as an output, the max load on VIN is 1A.
RST Active-low reset input. On-board circuitry contains a 1k ohm pull-up resistor between RST and 3V3, and 0.1uF capacitor between RST and GND.
VBAT Supply to the internal RTC, backup registers and SRAM when 3V3 is not present (1.65 to 3.6VDC).
3V3 This pin is the output of the on-board regulator and is internally connected to the VDD of the WiFi module. When powering the Photon via VIN or the USB port, this pin will output a voltage of 3.3VDC. This pin can also be used to power the Photon directly (max input 3.3VDC). When used as an output, the max load on 3V3 is 100mA. NOTE: When powering the Photon via this pin, ensure power is disconnected from VIN and USB.
WKP Active-high wakeup pin, wakes the module from sleep/standby modes. When not used as a WAKEUP, this pin can also be used as a digital GPIO, ADC input or PWM.
D0~D7 Digital only GPIO pins.
A0~A7 12-bit Analog-to-Digital (A/D) inputs (0-4095), and also digital GPIOs. A6 and A7 are code convenience mappings, which means pins are not actually labeled as such but you may use code like analogRead(A7)A6 maps to the DAC pin and A7 maps to the WKP pin.
DAC 12-bit Digital-to-Analog (D/A) output (0-4095), and also a digital GPIO. DAC is used as DAC or DAC1 in software, and A3 is a second DAC output used as DAC2 in software.
RX Primarily used as UART RX, but can also be used as a digital GPIO or PWM.
TX Primarily used as UART TX, but can also be used as a digital GPIO or PWM.

PIN OUT DIAGRAMS

Technical specification

ABSOLUTE MAXIMUM RATINGS

Parameter Symbol Min Typ Max Unit
Supply Input Voltage VIN-MAX     +6.5 V
Supply Output Current IIN-MAX-L     1 A
Supply Output Current I3V3-MAX-L     100 mA
Storage Temperature Tstg -40   +85 °C
Enable Voltage VEN     VIN+0.6 V
ESD Susceptibility HBM (Human Body Mode) VESD     2 kV
Parameter Symbol Min Typ Max Unit
Supply Input Voltage VIN +3.6   +5.5 V
Supply Input Voltage V3V3 +3.0 +3.3 +3.6 V
Supply Output Voltage VIN   +4.8   V
Supply Output Voltage V3V3   +3.3   V
Supply Input Voltage VVBAT +1.65   +3.6 V
Supply Input Current (VBAT) IVBAT     19 uA
Operating Current (Wi-Fi on) IIN avg   80 100 mA
Operating Current (Wi-Fi on) IIN pk 235[1]   430[1] mA
Operating Current (Wi-Fi on, w/powersave) IIN avg   18 100[2] mA
Operating Current (Wi-Fi off) IIN avg   30 40 mA
Sleep Current (5V @ VIN) IQs   1 2 mA
Deep Sleep Current (5V @ VIN) IQds   80 100 uA
Operating Temperature Top -20   +60 °C
Humidity Range Non condensing, relative humidity       95 %

Notes:

[1] These numbers represent the extreme range of short peak current bursts when transmitting and receiving in 802.11b/g/n modes at different power levels. Average TX current consumption in will be 80-100mA.

[2] These are very short average current bursts when transmitting and receiving. On average if minimizing frequency of TX/RX events, current consumption in powersave mode will be 18mA

WI-FI SPECIFICATIONS 

Feature Description  
WLAN Standards IEEE 802 11b/g/n
Antenna Port Single Antenna
Frequency Band 2.412GHz -- 2.462GHz (United States of America and Canada)
  2.412GHz -- 2.472GHz (EU/Japan)
Sub Channels 1 -- 11 (United States of America and Canada)
  1 -- 13 (EU/Japan)
Modulation DSSS, CCK, OFDM, BPSK, QPSK, 16QAM, 64QAM
PØ module Wi-Fi output power   Typ. Tol. Unit
RF Average Output Power, 802.11b CCK Mode 1M Avail. upon request +/- 1.5 dBm
  11M - +/- 1.5 dBm
RF Average Output Power, 802.11g OFDM Mode 6M - +/- 1.5 dBm
  54M - +/- 1.5 dBm
RF Average Output Power, 802.11n OFDM Mode MCS0 - +/- 1.5 dBm
  MCS7 - +/- 1.5 dBm

I/O CHARACTERISTICS

These specifications are based on the STM32F205RG datasheet, with reference to Photon pin nomenclature.

Parameter Symbol Conditions Min Typ Max Unit
Standard I/O input low level voltage VIL   -0.3   0.28*(V3V3-2)+0.8 V
I/O FT[1] input low level voltage VIL   -0.3   0.32*(V3V3-2)+0.75 V
Standard I/O input high level voltage VIH   0.41*(V3V3-2)+1.3   V3V3+0.3 V
I/O FT[1] input high level voltage VIH V3V3 > 2V 0.42*(V3V3-2)+1   5.5 V
  VIH V3V3 ≤ 2V 0.42*(V3V3-2)+1   5.2 V
Standard I/O Schmitt trigger voltage hysteresis[2] Vhys   200     mV
I/O FT Schmitt trigger voltage hysteresis[2] Vhys   5% V3V3[3]     mV
Input leakage current[4] Ilkg GND ≤ Vio ≤ V3V3GPIOs     ±1 µA
Input leakage current[4] Ilkg RPU Vio = 5V, I/O FT   3 µA
Weak pull-up equivalent resistor[5] RPU Vio = GND 30 40 50 k Ω
Weak pull-down equivalent resistor[5] RPD Vio = V3V3 30 40 50 k Ω
I/O pin capacitance CIO     5   pF

Notes:

[1] FT = Five-volt tolerant. In order to sustain a voltage higher than V3V3+0.3 the internal pull-up/pull-down resistors must be disabled.

[2] Hysteresis voltage between Schmitt trigger switching levels. Based on characterization, not tested in production.

[3] With a minimum of 100mV.

[4] Leakage could be higher than max. if negative current is injected on adjacent pins.

[5] Pull-up and pull-down resistors are designed with a true resistance in series with switchable PMOS/NMOS. This PMOS/NMOS contribution to the series resistance is minimum (~10% order).

Mechanical specifications

DIMENSIONS AND WEIGHT

Headers Dimensions in inches (mm) Weight
With 1.44 x 0.8 x 0.27 (36.58 x 20.32 x 6.86) 5 grams
Without 1.44 x 0.8 x 0.17 (36.58 x 20.32 x 4.32) 3.7 grams

MATING CONNECTORS

The Photon (with headers) can be mounted with (qty 2) 12-pin single row 0.1" female headers. Typically these are 0.335" (8.5mm) tall, but you may pick a taller one if desired. When you search for parts like these it can be difficult to navigate the thousands of parts available.

On Digikey.com, this section Rectangular Connectors - Headers, Receptacles, Female Socketscontains 36,000 of them. Narrow the search with: 12 positions, 1 row, 0.1" (2.54mm) pitch, Through Hole mounting types (unless you want SMT), and sort by Price Ascending. You may find something like this:

Description MFG MFG Part Number
12-pin 0.1" Female Header (Tin) Sullins Connector Solutions PPTC121LFBN-RC
12-pin 0.1" Female Header (Gold) Sullins Connector Solutions PPPC121LFBN-RC

You may also search for other types, such as reverse mounted (bottom side SMT) female headers, low profile types, machine pin, etc..

The Photon (with headers) can be mounted with 0.1" 12-pin female header receptacles using the following PCB land pattern:

This land pattern can be found in the Spark.lbr Eagle library, as a Device named PHOTON.  Note: Clone or Download the complete repository as a ZIP file to avoid corrupted data in Eagle files.

The Photon (without headers) can be surface mounted directly in an end application PCB using the following PCB land pattern:

Photon Pin #25-31 are described in the Pin Out Diagrams.

Solder mask around exposed copper pads should be 0.1mm (4 mils) larger in all directions. E.g., a 0.08" x 0.10" pad would have a 0.088" x 0.108" solder mask.

This land pattern can be found in the Spark.lbr Eagle library, as a Device named PHOTON_SMD. Note: Clone or Download the complete repository as a ZIP file to avoid corrupted data in Eagle files.

Schematic

SCHEMATIC - USB

SCHEMATIC - POWER

SCHEMATIC - USER I/O

SCHEMATIC - RF

SCHEMATIC - PØ WI-FI MODULE

Layout

PHOTON V1.0.0 TOP LAYER (GTL)

PHOTON V1.0.0 GND LAYER (G2L)

PHOTON V1.0.0 3V3 LAYER (G15L)

PHOTON V1.0.0 BOTTOM LAYER (GBL)

Phase Temperatures and Rates
A-B. Ambient~150°C, Heating rate: < 3°C/s
B-C. 150~200°C, soak time: 60~120 s
C-D. 200~245°C, Heating rate: < 3°C/s
D. Peak temp.: 235~245°C, Time above 220°C: 40~90 s
D-E. 245~220°C, Cooling rate: < 1°C/s

Bill of Materials

BUILD YOUR OWN DESIGN BASED ON THE PHOTON!

Qty Device Minimum Specification Package/Case Part Designator MFG. MFG. PN
1 ANTENNA 2.4GHz Ceramic 5.0mm × 2.0mm x 2.6mm ANT1 Advanced Ceramic X AT7020-E3R0HBA
2 CERAMIC CAPACITOR 22uF Ceramic 6.3V 10% X5R 0603 C4,C5 Samsung CL10A226MQ8NRNC
6 CERAMIC CAPACITOR 0.1uF Ceramic 6.3V 10% X5R 0402 C6,C7,C8,C11,C12,C16 RongFu 0402B104K01A
2 CERAMIC CAPACITOR 100pF Ceramic 6.3V 10% X5R 0402 C2,C3 Fenghua 0402CG101J500NT
4 CERAMIC CAPACITOR 10uF Ceramic 6.3V 10% X5R 0603 C9,C11,C13,C15 Sumsung CL10A106MQ8NNNC
3 CERAMIC CAPACITOR (RF) 10pF Ceramic 6.3V 10% X5R 0402 C1,C14,C17 Murata GJM1555C1HR80BB01D
1 CONNECTOR USB Micro-B w/tabs & slots USB-MICROB X1 Kaweei CMCUSB-5BFM2G-01-D
1 CONNECTOR uFL Connector SMD X2 Kaweei P1163-0140R
2 HEADER Single String 1.2" Mating Length 0.1" 12-pin JP1,JP2 Kaweei CP25411-12G-S116-A
1 DIODE Diode Schottky 30V 3A DO-220AA D1 Vishay SS3P3-M3/84A
1 DIODE (LED) Blue SMD 0603 LED1 Everlight 19-217/BHC-ZL1M2RY/3T
1 DIODE (LED) LED RGB Common Anode Diffused SMD 4-PLCC (2.0mm x 2.0mm) LED2 Cree CLMVB-FKA-CFHEHLCBB7A363
1 INDUCTOR 2.2uH 1.5A 3mm x 3mm L4 Taiyo Yuden NR3015T2R2M
1 INDUCTOR (RF) 3.9nH RF inductor 0402 L3 Johanson L-07C3N9SV6T
1 INDUCTOR (RF) 4.7nH RF inductor 0402 L1 Johanson L-07C4N7SV6T
1 INDUCTOR (RF) 6.8nH RF inductor 0402 L2 Johanson L-07C6N8JV6T
1 WI-FI + MCU Broadcom Wi-FI + STM32 MCU Custom USI SMD U1 USI WM-N-BM-09-S
1 RF SWITCH RF Switch SPDT UQFN-6 (1x1mm) U3 Skyworks SKY13350-385LF
1 POWER REGULATOR 3.3V 1.5MHz 600mA High Efficiency PWM Step-Down DC/DC Converter SOT23-5 U2 Richtek RT8008-33GB
1 RESISTOR 100k 5% 0402 R4 Fenghua RC-02W104FT
2 RESISTOR 22R 5% 0402 R5,R6 Fenghua RC-02W220JT
1 RESISTOR 10k 5% 0402 R8 Fenghua RC-02W103JT
4 RESISTOR 1k 5% 0402 R1,R2,R3,R7 Fenghua RC-02W102JT
2 SWITCH Button 160gf 3.6mm x 3.1mm SETUP,RESET Haoyu TS-1185A-C

Ordering information

Photons are available from store.particle.io in single quantities with and without headers, and also included in different maker kits.

Qualification and approvals

Photon with Headers

  • Model Number: PHOTONH
  • RoHS
  • CE
  • FCC ID: 2AEMI-PHOTON
  • IC: 20127-PHOTON

Photon without Headers

  • Model Number: PHOTONNOH
  • RoHS
  • CE
  • FCC ID: 2AEMI-PHOTON
  • IC: 20127-PHOTON
  •  

資料來源:https://www.seeedstudio.com/Particle-Photon---SMALL-AND-POWERFUL-WI-FI-CONNECTED-MICROCONTROLLER-p-2527.html

Description

Particle’s Photon, is a tiny Wi-Fi development kit for creating connected projects and products for the Internet of Things (IoT). It is easy to use, powerful and connected to the cloud. Particle combines a powerful ARM Cortex M3 microcontroller with a Broadcom Wi-Fi chip in a tiny thumbnail-size module called the P0 (P-Zero).

To get you started quickly, Particle adds a rock solid 3.3VDC SMPS power supply, RF and user interface components to the P0 on a small single-sided PCB called Photon. The design is open source, so when you are ready to integrate the Photon into your product, you can.

The tools that make up the Photon’s ecosystem (and come along with the board) are designed to let you build and create whether you are an embedded engineer, web developer, Arduino enthusiast or IoT entrepreneur. You’ll be able to write your firmware in Particle web or local IDE, deploy it over the air, and build your web and mobile apps with ParticleJS and our Mobile SDK.

The Photon comes in with headers. Prototyping is easy with headers as the Photon plugs directly into standard breadboards and perfboards, and may also be mounted with 0.1” pitch female headers on PCB.


Features

  • Particle P0 Wi-Fi module

  • Broadcom BCM43362 Wi-Fi chip

  • 802.11b/g/n Wi-Fi

  • STM32F205 120Mhz ARM Cortex M3

  • 1MB flash, 128KB RAM

  • On-board RGB status LED

  • 18 Mixed0signal GPIO and advanced peripherals

  • Open source design

  • Real-time operating system (FreeRTOS)

  • Soft AP setup

  • FCC, CE and IC certified


Part List

  • 1 x Particle Photon


Documents

Techsupport

This product is designed by Particle,

  • For any technical support or suggestion, please kindly visit Particle's forum or Particle's docs



Technical Details

Dimensions 80mm x 60mm x 16.5mm
Weight G.W 10g    
Battery Exclude

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