Arduino

This module provides 16-bit, general-purpose parallel I/O expansion for I2C or SPI bus applications. The  MCP23017 chip supports the I2C interface and the  MCP23S17 chip is used for the SPI interface. The board can be populated with either SPI or I2C chip. Follow the connection diagrams for interface details.

C111
 

This  is a high-frequency differential line receiver amplifier that has excellent common-mode rejection at its inputs. The project is an ideal solution for a receiver of a digital signal or video signals that are transmitted over long distances on twisted-pair cables like  CAT5. Category 5 cables are very common in office settings and are extensively used for data transmission. These cables can also be used for the digital signal or analog transmission of signals such as video. These long cables pick up noise from the environment they pass through. This noise does not favor one conductor over another and therefore is a  common-mode signal. A receiver that rejects the common-mode signal on the cable can greatly enhance the  signal-to-noise  ratio performance of the link. This project is tested with  100Hz to 1Mhz square wave signal, however, it can support higher frequency.

B121

This is a  low-cost solution to transmit a video or digital signal up to 300 Meters over a twisted pair cable. The project has been designed using the  AD8131  chip which is a differential driver for the transmission of high-speed signals over low-cost twisted pair or coaxes cables. The project can be used for either analog or digital video signals or for other high-speed data transmissions. It is capable of driving either  Cat3  or  Cat5  twisted pair or coax with minimal line attenuation. The AD8131 has on-chip resistors that provide for a gain of 2 without any external parts. Several on-chip resistors are trimmed to ensure that the gain is accurate, the common-mode rejection is good, and the output is well balanced. This makes the AD8131 very suitable as a single-ended-to-differential twisted-pair line driver.  The board works with  +/-5V DC  (Dual 5V) supply, RCA connector J1 to feed single-ended Video or digital signal, connector CN2 is used to connect the twisted pair cable (CAT5), D1 Power LED, Resistor R7 and R8 terminate the line at transmitting side.

B122

The module described here is an isolated CAN Transceiver module. This module can be used as a standalone module or as an Arduino Uno shield. A controller area network is a two-wire high-speed serial network typically used to provide data communication between host and nodes. The high-speed controller area network transceivers offer integrated isolation, high ESD and high fault protection. The project built using  ISO1042  IC from Texas Instruments. The project requires 5V supply from the host side (Arduino) and separates 5V from the node side for isolation. The project supports up to 5Mbps data rate in CAN FD mode allowing much faster transfer of payload compared to classic CAN. D1 Power LED, CN1 Can bus communication, CN3 RJ45 CAN Communication.

C112

This OLEDUINO v.2 board is a compact, feature-rich board that incorporates the ATMEGA328 Arduino compatible microcontroller, a 0.96-inch 128×64 OLED display (SSD136), a 5V regulator