ATmega32u4 IoT Board with On Board SMPS

OVERVIEW:

RDL's compact and reliable ATmega32u4 IoT Board with On Board SMPS.It can be used for variety of IoT industrial applications.

 

FEATURES:

• 12 Channel  (12 Channel Digital/Analog input Vdc (0-5V)).
• On board SD card socket.
• Support upto 8 GB FAT .
• On board USB programming option. 
• Operaing voltage 5V.
• 12 channel analog input Volatge range 0-5V.
• Xbee foot print for RF/WiFi communication.
• On board SMPS 5VDC/3W.
• 2 bit digial OPTO Isolated input using MCT-2E IC.
• RDL Bus:Easily connects to I2C/SPI/UART modules such as I2C DAC,4-20mA current loop transmitter,RTC etc.
• Compatible with Arduino IDE.

Technical Specification:

• Microconroller: ATmega32u4 
• Operating voltage: 5V
• Input Voltage(recommended): 7-12V
• Input voltage(limits):6-20V
• Analog input channels: 12
• DC current per I/O pin: 40mA
• DC current for 3.3V pin: 50mA
• Flash memory: 32KB (ATmega32u4) of which 4KB used for booloader
• SRAM: 2.5 KB (ATmega32u4)
• EEPROM: 1 KB (ATmega32u4)
• Clock speed: 16 MHz.

ESP8266 Features:

•  SDIO 2.0, SPI, UART
•  32-pin QFN package
•  Integrated RF switch, balun, 24dBm PA, DCXO, and PMU
•  Integrated RISC processor, on-chip memory and external memory interfaces
•  Integrated MAC/baseband processors
•  Quality of Service management
•  I2S interface for high fidelity audio applications
•  On-chip low-dropout linear regulators for all internal supplies
•  Proprietary spurious-free clock generation architecture
•  Integrated WEP, TKIP, AES, and WAPI engines.

BT24 Bluetooth Breakout Board: 
 Bluetooth features

• Bluetooth qualified module 
• Bluetooth v3.0
• Class 2 radio
• Range up to 60m LOS
• 400Kbps data throughput
• 128-bit encryption security  

Hardware configuration

• Cortex-M3 microprocessor up to 72MHz 
• 64K/128K/256K bytes Flash memory
• 8K/16K/48K bytes RAM memory
• UART, up to 921K baud
• SPI and I2C interfaces
• 13 general purpose I/O
• PCM audio interface
• 4 x12-bit A/D inputs 
• 1 LPO input.

Embedded software

•  Amp’edUP Bluetooth stack (SPP, IAP, A2DP, HID, HFP, OBEX)
•  Support Apple iOS/MFI Bluetooth devices
   abSerial, AT command set3
•  BlueGuard, data encryption software (Optional)
•  Mobile application software (Optional)

RTC Features:

• Real-Time Clock (RTC) Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the week, and Year with  Leap-Year Compensation Valid Up to 2100.
• 56-Byte, Battery-Backed, Nonvolatile (NV) RAM for Data Storage.
• I2C Serial Interface
• Automatic Power-Fail Detect and Switch Circuitry.
• Consumes Less than 500nA in Battery Backup Mode with Oscillator Running.
• 3 way of connectivity, Burgestick, FRC and custom cable soldering holes.
• High quality PCB FR4 Grade with FPT Certified. 

Application:

• Home automation. 
• Datalogging application.
• Open source PLC.
• Industrial applications.
• 4-20mA loop current based applications.
  

1. SD Card Socket
2. Xbee Foot Print
3. USB Programming Option.
4. Reset Switch
5. ICSP header
6. Digial OPTO Isolated Input.
7. AC Input
8. Hi-Link 5VDC/3W
9. Switch input
10. 5V and GND pins 
11. Analog Input channels
12. RDL Bus.

 Interfacing Boards:
Interfacing with 4-20mA current loop transmitter XTR116U:

 

Interfacing with 16 Input Output Expander MCP23017:

 Interfacing with I2C 12 Bit DAC MCP4725:

Interfacing with GSM SIM900A Modem:

Interfacing with Development Board:

Interfacing with Relay Board:

For More Schematic and Sample Codes: CLICK HERE

UHF RFID Reader- USB

OVERVIEW:

With UHF RFID Reader,you get constant and effort-free identification, location and tracking information,effortless tracking of every product or asset, every moment of the day. reading distance 50-200 Centimeters depends on the tag manufacturer.Multi-tags identify  >50pcs tags.Reading distance speed  >50pcs/sec. 

 Integrated antenna character:

1.  Be sensitive and stable to the tags identify. 
2.  Stable reading distance 1-3 meters.
3.  Multi-tags identify, >50pcs tags.
4. Reading distance speed, >50pcs/sec.

Solve the exothermic problem completely: 

1. No need for connecting any other outer radiating device. It can work without exothermic reaction in the normal indoor temperature.
2. Sustain electricity<200mA@ 3.5V (26 dBm Output). Pulse peak current<260mA

Outstanding stability:

1. 24 hours x 365days work normally.
2. Appearance little influenced by cover, electromagnetic environment etc.
3. Wide temperature design and the temperature drift coefficient.  

Good consistency:

1. The good design in consistency.
2. Choose the top level components to keep each parameters stable and consistence.  

Brief and high efficient interface of hardware and software:

1. Peripheral circuit is very easy. The signal power, no need for extra connecting tantalum capacitor

Specifications:

 

Electrical parameters:

• Working Voltage :DC 3.5V – 5 V 
• PCB size: Pcb size：50*50mm , Ceramic antenna size：40*40mm ,Overall height：8.5mm
• Standby current: <80mA (EN pin high level)
• Sleeping current :<100uA (EN pin low level)
•  Operation current :180mA@ 3.5V (26 dBm Output，25°C)。110mA@ 3.5V (18 dBm Output，25°C)。
•  Operating time: <100mS
•  Operation temp.: - 20 °C - + 70 °C
•  Storage temp. :- 20 °C - + 85 °C
•  Working humidity :< 95% ( + 25 °C)
• Protocol :EPCglobal UHF Class 1 Gen 2 / ISO 18000-6C
•  Frequency :840-960MHZ
•  Output power: 18-26 dBm
•  Output power accuracy: +/- 1dB
•  Output power flatness: +/- 0.2dB
•  Receive sensitivity: < -70dBm
•  Store tag peak speed: > 50pcs/sec
•  Tags RSSI :support
•  Communication interface :TTL Uart interface
• Communication baud rate: 115200 bps（default and recommend） 38400bps
• Heat-dissipating method :Air cooling(no need for out install cooling fan)

 Applications:

• Rfid based attendance system
• Rfid based smart shopping system
• Rfid based medical file tracking system
• Rfid based inventory management system
• Rfid based access control system -security
• Rfid based library management system
• Rfid based security guard monitoring system
• Rfid based asset tracking system ,
• Rfid based vehicle parking system
• Rfid based toll gate collection system
• Rfid hotel room access control system .
• Rfid based product identification for blind
• Rfid based blind indoor navigation system.
• Rfid based dual authentication system for software application ,
• Rfid based industry supply chain control system
• Rfid based smart conveyor.

For More Schematic and Sample Codes: CLICK HERE

 

 

RFID Reader-USB V2

OVERVIEW:

RDL's RFID Reader-USB V2 is designed for reading code from 125KHz card compatible read-only tags . It can be applied in office/home security, personal identification, access control, interactive toy and production control systems etc.Non contact RFID module, uses the advanced Radio Frequency receiving circuit and embedded MCU design, combining with an efficient decoding algorithm. 

 FEATURES:

• This is a low frequency (125Khz) RFID Reader With USB Output  
•  Compact unit with built in antenna and can be directly connected to any USB host
•  Built-in USB interface for easy connection to your PC
•  9600 baud serial output stream to PC is accessible from any programming language  that can open a COM port.
• Powered by USB (no external power required).
• Built in Antenna
• Current Requirement<120mA. 
• High quality PCB FR4 Grade with FPT Certified.  

APPLICATIONS:

• Rfid based attendance system 
• Rfid based smart shopping system
• Rfid based medical file tracking system 
• Rfid based inventory management system
• Rfid based library management system
• Rfid based security guard monitoring system
• Rfid based asset tracking system 
• Rfid based vehicle parking system
• Rfid based toll gate collection system
• Rfid hotel room access control system .
• Rfid based product identification for blind
• Rfid based blind indoor navigation system.
• Rfid based dual authentication system for software application
• Rfid based industry supply chain control system
• Rfid based smart conveyor.

 

For More Schematic and Sample Codes: CLICK HERE

LiFi Nano V2

OVERVIEW:

A very innovative technology know as 'LiFi' or 'Light Fidelity' is taking a leap. Data transfer from one source to another happens over 'Light'. Technically, if the LED is ON, one can transmit a digital string of 1, if it’s OFF then user can transmit a string of 0. It can be switched ON and OFF very quickly, which gives instant opportunity for transmitting data. It is possible to encode data in the light by varying the rate at which the LEDs flicker ON and OFF to pass different strings of 1s and 0s. The modulation is so fast that the human eye doesn’t notice. Presenting you with Research Design Labs' LiFi Nano Module. 

 FEATURES:

• It can transmit data 38400 baud rate serially.
• Distance can be acheived 1 to 1.5 meter for wireless open optical communication.
• High intensity LED.
• High quality PCB FR4 Grade with FPT Certified.
  

APPLICATIONS:

•  Indoor wireless open optical communication. 
•  Indoor navigation.
•  Smart indoor blind assistive application.
•  Vehicle to vehicle communication.
•  Monitor as transmitter for Data Communication.
•  Preventing Phishing Attacks using One Time Password and User Machine              Identification.
•  Super market navigation system and discount information based on location. 
•  Smart LIFI based Car Parking system.
•  Smart Location Aware of Services.
•  Visible light positioning for asset tracking.
• POSITIONING TECHNIQUES FOR ACCURATE LOCALIZATION mobile robot navigation.
•  Integrated, underwater optical /acoustic communications system.
•  Visible Light Communication Based Traffic Information Broadcasting Systems.
• Li-Fi wireless optical communication

 For More Schematic and Sample Codes:CLICK HERE

4-20mA Current Loop Transmitter XTR116U with Analog Input

OVERVIEW:

The XTR116 are precision current output converters designed to transmit analog 4-to-20mA signals over an industry standard current loop. They provide accurate current scaling and output current limit functions.

 
 FEATURES:

• LOW QUIESCENT CURRENT: 200µA 
• 5V REGULATOR FOR EXTERNAL CIRCUITS
• VREF FOR SENSOR EXCITATION:XTR116: 4.096V
• LOW SPAN ERROR: 0.05%
• LOW NONLINEARITY ERROR: 0.003%
• WIDE LOOP SUPPLY RANGE: 7.5V to 36V
• SO-8 PACKAGE.
• I2C Interface.

 For More Schematic and Sample Codes: CLICK HERE

 

4-20mA Current Loop Transmitter XTR116U

OVERVIEW:

The XTR116 are precision current output converters designed to transmit analog 4-to-20mA signals over an industry standard current loop. They provide accurate current scaling and output current limit functions. 4-20mA Current Loop Transmitter a serial I2C bus interface. 4-20mA Current Loop Transmitters device input and output of the address, control and data signals are transmitted in serial fashion via the two-wire bidirectional I2C bus. 

 

 FEATURES:

• LOW QUIESCENT CURRENT: 200µA 
• 5V REGULATOR FOR EXTERNAL CIRCUITS
• VREF FOR SENSOR EXCITATION:XTR116: 4.096V
• LOW SPAN ERROR: 0.05%
• LOW NONLINEARITY ERROR: 0.003%
• WIDE LOOP SUPPLY RANGE: 7.5V to 36V
• SO-8 PACKAGE.
• I2C Interface.
   

For More Schematic and Sample Codes: CLICK HERE

I2C 16 Input -Output Port Expander MCP23017

OVERVIEW:

The IO Expander Board is based on the Microchip MCP23017 Expander Chip. This high-performance IC, allows connection to a range of High-Speed I²C buses, including the standard 100kHz bus, as well as the newer 400kHz and 1.7MHz bus standards. 

 FEATURES:

• Includes Microchip MCP23017 16-Bit I/O Expander Chip 
• Board can be controlled with High-Speed I²C Connection.
• Standard Male Headers for Board Interfacing.
• Suitable for 5V Systems.
• Three hardware address pins to allow up to eight devices on the bus 
      

 MCP23017 Features:

•  16-bit remote bidirectional I/O port - I/O pins default to input
•  High-speed I2C™ interface (MCP23017) - 100 kHz - 400 kHz - 1.7 MHz
•  Three hardware address pins to allow up to eight devices on the bus
•  Configurable interrupt output pins - Configurable as active-high, active-low or       open-drain
•  INTA and INTB can be configured to operate independently or together
• Configurable interrupt source - Interrupt-on-change from configured register defaults or pin changes
• Polarity Inversion register to configure the polarity of the input port data
• External Reset input 
• Low standby current: 1 µA (max) .
• Operating voltage: - 1.8V to 5.5V @ -40°C to +85°C - 2.7V to 5.5V @ -40°C to +85°C - 4.5V to 5.5V @ -40°C to +125°C

For More Schematic and Sample Codes: CLICK HERE