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

I2C 12 bit DAC

OVERVIEW:

The I2C-DAC board is a 12-bit digital-to-analog converter device using I2C bus. There are no external components required. Only two signal lines SDA and SCL plus supply voltage and ground are required to be connected. This makes it perfect for embedded systems that require digital-to-analog converter. 

 FEATURES:

• Simple I2C interface.
• 2.7 to 5.2V supply range.
•  Resolution: 12-bit.
•  High quality PCB FR4 Grade with FPT Certified.

 MCP4725 Features:

•  12-Bit Resolution
•  On-Board Non-Volatile Memory (EEPROM)
•  ±0.2 LSB DNL (typical)
•  External A0 Address Pin
•  Normal or Power-Down Mode
•  Fast Settling Time of 6 µs (typical)
•  External Voltage Reference (VDD)
•  Rail-to-Rail Output
•  Low Power Consumption
•  Single-Supply Operation: 2.7V to 5.5V
• I2CTM Interface:
  - Eight Available Addresses
  - Standard (100 kbps), Fast (400 kbps), and High
  -Speed (3.4 Mbps) Modes
• Small 6-lead SOT-23 Package
• Extended Temperature Range: -40°C to +125°C

For More Schematic and Sample Codes: CLICK HERE

SSR 230V/8A Dimmer-ON/OFF Switch

OVERVIEW:

The  SSR switch  ON / OFF and  16 level Dimming can be controlled using controller , switches  and PLC logics .This switch can be used control light , FAN, power socket ,  Triac dimming enabled LED's and any other remote  ON / OFF  or dimming application.

Features:

• On/Off  and dimming control.
• Snubber circuit enable.
• Accurate firing angle control and smooth dimming.
• Operating Voltage 5V DC.
• Isolated power section from the input.
• 0-100% dimming.
• Typical Power handling upto 1800Watts.
• Maximum power handling 2760Watts *.
• High quality PCB FR4 Grade with FPT Certified.

BTA12 Triac Features:

• Blocking Voltage to 800 V
• On-State Current Rating of 12 A RMS at 25°C
• Uniform Gate Trigger Currents in Three Quadrants
• High Immunity to dV/dt − 1500 V/s minimum at 125°C
• Minimizes Snubber Networks for Protection
• Industry Standard TO-220AB Package
• High Commutating dI/dt − 1.5 A/ms minimum at 125°C
• Internally Isolated (2500 VRMS)
• These Devices are Pb−Free and are RoHS Compliant*

For More Schematic and Codes: CLICK HERE

Bluetooth-SSR 230V/8A Dimmer-ON/OFF Switch

OVERVIEW:

The board can be used in applications where dimming of 230V/50Hz AC power is required like dimming of bulb or fan.

FEATURES:

• On/Off  and dimming control.
• Snubber circuit enable.
• Accurate firing angle control and smooth dimming.
• Operating Voltage 5V DC.
• Isolated power section from the input.
• 0-100% dimming.
• Bluetooth Enabled.
• Typical Power handling upto 1800Watts.
• Maximum power handling 2760Watts *.
• High quality PCB FR4 Grade with FPT Certified.

BTA12 Triac Features:

• Blocking Voltage to 800 V
• On-State Current Rating of 12 A RMS at 25°C
• Uniform Gate Trigger Currents in Three Quadrants
• High Immunity to dV/dt − 1500 V/s minimum at 125°C
• Minimizes Snubber Networks for Protection
• Industry Standard TO-220AB Package
• High Commutating dI/dt − 1.5 A/ms minimum at 125°C
• Internally Isolated (2500 VRMS)
• These Devices are Pb−Free and are RoHS Compliant*

FOR MORE SCHEMATICS AND SAMPLE CODE: CLICK HERE

WiFi-SSR 230V/8A Dimmer-ON/OFF Switch

OVERVIEW:

The board can be used in applications where dimming of 230V/50Hz AC power is required like dimming of bulb or fan.

FEATURES:

• On/Off  and dimming control.
• Snubber circuit enable.
• Accurate firing angle control and smooth dimming.
• Operating Voltage 5V DC.
• Isolated power section from the input.
• 0-100% dimming.
• WiFi Enabled.
• Typical Power handling upto 1800Watts.
• Maximum power handling 2760Watts *.
• High quality PCB FR4 Grade with FPT Certified.

ESP8266 ESP-07 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.

ESP8266 ESP-07 Specifications:

•     802.11 b/g/n
•     Wi-Fi Direct (P2P), soft-AP
•     Integrated TCP/IP protocol stack
•     Integrated TR switch, balun, LNA, power amplifier and matching network
•     Integrated PLLs, regulators, DCXO and power management units
•     +19.5dBm output power in 802.11b mode
•     Power down leakage current of <10uA
•     Integrated low power 32-bit CPU could be used as application processor
•     SDIO 1.1/2.0, SPI, UART
•     STBC, 1×1 MIMO, 2×1 MIMO
•     A-MPDU & A-MSDU aggregation & 0.4ms guard interval
•     Wake up and transmit packets in < 2ms
•     Standby power consumption of < 1.0mW (DTIM3).

BTA12 Triac Features:

• Blocking Voltage to 800 V
• On-State Current Rating of 12 A RMS at 25°C
• Uniform Gate Trigger Currents in Three Quadrants
• High Immunity to dV/dt − 1500 V/s minimum at 125°C
• Minimizes Snubber Networks for Protection
• Industry Standard TO-220AB Package
• High Commutating dI/dt − 1.5 A/ms minimum at 125°C
• Internally Isolated (2500 VRMS)
• These Devices are Pb−Free and are RoHS Compliant*

For More Schematic and Sample Codes: CLICK HERE

Bluetooth Robo UNO Atmega328 Development Board

OVERVIEW:

Open source Bluetooth Robot Hardware is intended to serve as a resource for efforts focusing on Open and Open Source mechanical ,electrical  and mobile application integration , with a particular focus on projects that may be useful in robotics applications, robotics research and education.

PRODUCT DESCRIPTION:

Robot is controlled by a android mobile phone with remote control application installed. Initially both the Bluetooth devices should be paired.If any button is pressed a byte corresponding to the button presses is received at the other end of the Bluetooth receiver. The microcontroller is programmed to take appropriate movement action for a given input. These decisions will be used to driver the motors forward, backward, left and right via l298 motor driver.

For more Schematics and Sample Codes: Click Here

SPY BEAGLE BOT DIY KIT

OVERVIEW:

Spy robots are remotely controlled robots, equipped with a camera, transmitting video data to the remote area. A movable spy robot with a remote controller by using beagle bone. The spy robot is made up of a USB camera, Wi-Fi adaptor, batteries and movable wheels. To remotely control wireless system and to control Spy robot Wi-Fi technology is used.

Remote Operated Spy Robot is a small robot designed for spying, surveillances and inspection purposes through web browsers from any corner of the world.

WORKING:

From the above block diagram,

This DIY Kit consists of two interventions SPY BEAGLE BOT and Remote Control.

SPY BEAGLE BOT consists of raspberry pi attached to the BOT PCB (L298 motor driver and DC motors with wheels) along with USB camera and Wi-Fi adaptor plugged in. Power supply is provided by 12v DC for entire BOT PI and also Regulated 5v and 12v supply is provided on board. 

After booting into Raspberry Pi, necessary application must be installed to run PHP, mjpg streamer (for video streaming).

 Remote control is intervened through web browser, in this webpage consist of movement control of the robot and live video streaming.

For this, PHP script is written to control motors through l298 motor driver and mjpg streamer is configured to stream video into the same PHP code in raspberry pi.

COMPONENTS REQUIRED:

• BEAGLE BONE BLACK.
• BOT. 
• USB WEB camera.
• Jumper wires.
• 12 DC power supply.