This page lists a few of the integrated circuits and other components used by previous senior design teams.
1.) Current and Voltage Measurement
INA219- an I2C based device that can measure bus voltages up to 32 V and also performs current measurements as well via a shunt
resistor.
ACS713 Hall-Effect Based Linear Current Sensor: Measures current via the hall effect and outputs an analog voltage.
(See Portable Power Supply, Spring 2008)
2.) A.C. Voltage Control
MOC3011-M TRIAC Driver: Used for interfacing between electronic controls and power triacs to control resistive and inductive loads for
115 VAC operations. (See Programmable Power Relay, Fall 2008)
FOD-814 Zero Crossing Chip: Detect zero-crossing point of AC sine wave and provides signal input to micro-controller. Typically used
for dimming applications. (See Programmable Power Relay, Fall 2008)
Q6025P5 TRIAC: Used for switching AC power, solid state replacement for electromechanical relays, used with MOC3011-M triac driver
(See Programmable Power Relay, Fall 2008)
3.) Power Supplies
BP5063-5 5V 200mA AC/DC Converter: Converts 120 VAC input to 5V DC output, commonly used to power onboard electronics
(See Programmable Power Relay, Fall 2008)
4.) LCD Displays
Xiamen Ocular LCD module: two line LCD display
Hitachi LCD Controller Chip: LCD driver chip for LCD display
5.) Stepper Motors and Accessories
Stepper Motor control: UNC5804 for controlling a unipolar four-phase stepper motor
PK244PA Stepper Motor: Unipolar four-phase stepper motor
6.) Communications
Vinculum VNC1L Embedded USB Host Controller I.C.: Allows USB functionally to be added to an embedded system. (i.e. flash drive).
Communicates with MCU via UART, SPI, or parallel FIFO interfaces.
(see Remote Camera, Fall 2007)
USB232R USB to Serial Module: Allows USB interface to be added to an embedded system. Interfaces with MCU via serial UART and
with P.C. via virtual COM port.
(See Programmable Power Relay, Fall 2008)
WS3100A Ethernet Controller Chip: Allows ethernet functionality to be easily implemented, interfaces with MCU via I2C. Handles TCP/IP
and ethernet protocols.
7.) Amplifiers
AD524 Precision Instrumentation Amplifier: Provides high gain for data acquisition applications requiring high accuracy.
(see Blood Flow Meter, Fall 2008)
8.) Accessories
VS1011e - MP3 Decoder: Decodes MP3 and WAV files. Features serial control and data interfaces
(See MP3-Alarm Clock, Spring 2009)
9.) Clocks
DS1307 Serial, I2C Real Time Clock: Counts Minutes, Hours, Seconds, Month, Day of Week, and Year
(see Pill Dispenser, Spring 2007)
10.) Temperature Measurement
MAX6675 Cold-Junction-Compensated K-Thermocouple-to-Digital Converter: Digitizes the signal from a type-K thermocouple, contains
SPI compatible Serial Interface.
11.) Sensors
GP2Y0A02YK0F Distance Measuring Sensor: Measures distances 20 to 150 centimeters and produces analog output voltage.
MLX90609-R2 Angular Rate Sensor: Measures angular rate and provides SPI and analog output.
ADXL335 Accelerometer: 3-axis accelerometer capable of measuring tilt and acceleration from motion, shock, or vibration. Output
signals are analog voltages.
(See ClearVision, Spring 2009)
12.) Negative Voltage Converter TI TL7660 integrated circuit.
13.) USB Flash Drive data logger ( VDIP USB-drive module, from FTDI. Code Example , if you want to understand this code, read the Vinculum Firmware User Manual).
14.) Celluar/GPS module with Python scripting (Telit GM862-GPS).
15.) Precision Voltage references (LT1634, LT1019).
16.) Op amps come in all sorts of varieties. The 741 opamp you use in electronic labs is inexpensive, but is not rail-to-rail (output swings to full positive, negative supplies) or low voltage offset, or low offset current, or low power usage (micropower). If you need opamps with one or more of these characteristics, search for them at places like National Semiconductor, Linear Technology, Maxim Integrated Circuits. A chopper-stablized opamp such as the LTC1051 will have the lowest DC offset, but will be slow in response time (so use for buffering/amplifying slowly varying sensors such as temperature or chemical sensors). A micropower opamp is good for battery operated designs if you want to minimize current draw of the opamps. A low offset current opamp (in low nano-amps or in the pico-amps) if you need an op-amp that presents minimum current load to the sensor that you are buffering. A rail-to-rail single supply opamp will operate from a single power supply, and its output will fully swing between that supply and ground.