Logic Schematics
- Make noise with a PIC
- Manipulating the Stack of the PIC18 Microcontroller
- Measure humidity and temperature on one TTL line
- Measure Tilt Using PIC16F84A & ADXL202
- 40MHz 32 Channel Logic Analyser
- Digital Storage Oscilloscope Adapter
- Logic Probe with CMOS 4001
- LOGIC DESIGNER
- Logic Pulser
- Logic Probe with Pulse
- CMOS Logic Probe
- Audible Logic Tester
- (LPT) 3.3V Logic, LCX, and FCT3 Logic
- PIC to RS232 Interface
- Voltage programmable square wave generator
- Simple logic analyzer pushes microcontroller to its limit
- Logic offers complementary-switch control
- Logic Powered Serial EEPROMs
- Logic Probe
- Logic PSU with Overvoltage Protection
- Logic that mutates while-u-wait
- Low-voltage interface circuits translate 1.8 to 5V
- Low Cost USB Microcontroller Programmer
- PLL implements FPGA-based SDRAM controller
- Low-Power Design Using PICmicro Microcontrollers
- Multi-Tasking on the PIC16F877 with the Salvo RTOS
- Network forms digital-to-impedance converter
- Off-the-shelf ICs make 10-bit convolver
- Off-the-shelf MMIC suits mixer applications
- Optimizing Read-Range of the 13.56 MHz Demonstration Reader
- Optimizing the Digital Potentiometer in Precision Circuits
- MULTI CHIP MULTI CHIP
- 68k Single Board Computer
- Evaluation Board
- Make a DAC with a microcontroller's PWM timer
- Implementing a LIN Slave Node on a PIC18F1320
- Implementing a PID Controller Using a PIC18 MCU
- Implementing Auto Baud on dsPIC30F Devices
- Implementing Bootloader Firmware Application Note
- Implementing FIR and IIR Digital Filters Using PIC18 Microcontrollers
- Implementing IIR Digital Filters
- Implementing the External Memory Interface on PIC18C601/801
- Closed-loop flow control manages ATM channel bandwidth
- Interfacing I2C Serial EEPROMs to PIC10 and PIC12 Devices
- Interfacing I2CTM Serial EEPROMs to PICmicroR Microcontrollers
- Interfacing Sony control stick to Empeg
- Interfacing the MAX187 ADC to the BSII to measure voltages
- Interfacing SPI? Serial EEPROMs to Microchip PICmicroR Microcontrollers
- 508A microcontroller can deliver a maximum of 25mA
- Devantech SRF04 Interface to BrainStem GP 1.0
- Key-reading circuit saves I/O pins
- LIN Protocol Implementation Using PICmicroR MCUs
- 25-kV generator tests insulation
- Replacement For The LM3909 LED Flasher / Oscillator
- LIN Slave Node on a PIC16C433
- Funcard Programmer by Diesel
- Hardware Techniques for PICmicro Microcontrollers
- A Hierarchical Priority Encoder
- High Efficiency Halogen Bike Light Dimmer
- High-frequency AGC has digital control
- Home Brew Compass Sensor
- My Homebrewed Stamp II
- Homebuilt RS232 LCD Interface
- Simple hookup increases AD2101's memory
- How to Implement ICSP Using PIC12C5XX OTP MCUs
- How to Implement ICSP Using PIC16CXXX OTP MCUs
- How to Implement ICSP Using PIC16F8X FLASH MCUs
- How to Implement ICSP Using PIC17CXXX OTP MCUs
- I/O Expansion Using the MCP23X08 and PIC10F202
- IEC Compliant Active-Energy Meter Design Using the MCP3905/6
- Implementing a Bootloader for the PIC16F87X
- Implementing a LIN Master Node Driver on a PIC18 Microcontroller with USART
- Implementing a LIN Slave Node on a PIC16F73
- Digital Speed Control by Anthony Psaila
- Digital Step-Km Counter
- Digital Stopwatch 0-60sec
- Digital Stopwatch 0-99sec
- Digital-Simulation Logic-Value Systems
- Digital Compass Navigation PC Board
- Direct digital synthesis (DDS)
- Dual-polarity amplifier has digital control
- Effects of Digital Crosstalk in Data Converters
- Embedded memory enhances programmable logic
- Embedding PICmicro Microcontrollers in the Internet
- EPROM adapter for ATMEL 89 Series
- EPROM Programmer Mk2
- External Memory Interfacing Techniques for the PIC18F8XXX
- Mastering the PIC16C7X A/D Converter
- Simple FIFO provides data-width conversion
- Finite State Machine Programmable Logic Controller
- FLASH Memory Technology: Considerations for Application Design
- Floating Point to ASCII Conversion
- Frequency Counter Using PIC16C5x
- Digital Clock
- Digital Coding Schemes for Mixed Signal Communication
- Digital Combination Lock
- Digital current source is nonvolatile
- Digital Data Signal Crosstalk on the Clock
- Digital Delay Unit For Surround Sound
- Digital dial
- Digital Engine/Race Computer Board
- Digital filter makes simple spike eliminator
- Digital Guitar Tuner
- Digital Mains Voltage Indicator
- Digital Step-Km Counter
- Digital position encoder does away with ADC
- Digital pot corrects for system drift
- Digital potentiometer autonulls op amp
- Digital potentiometer controls LCD bias
- Digital potentiometer controls phase shift
- Digital Remote Thermometer
- Digital Signal Processing with the PIC16C74
- Digital signals produce pure sine waves
- Comparing CAN and ECAN Modules
- Connecting a PICmicroR Microcontroller to a Standard Analog Telephone Line
- Control 120VAC relay with TTL
- Controller provides multiple alarm-driver formats
- Converting from 8051 to Microchip Assembler
- Converting from 8051 to Microchip Assembler
- Correlator works in presence of noise
- CRC Generating and Checking
- Credit Card Reader Using PIC12C509
- Current-limit switch is digitally programmable
- DS1620 based USB Digital Thermometer
- AN996, Designing a Digital Compass Using the PIC18F2520
- Decoding the HCS101 for Non-Secure Applications
- Designing an FCC Approved ASK rfPIC? Transmitter
- Designing Energy Meters with the PIC16F873A
- Digi Pack
- A simple ring modulator
- Automatic Gain Control
- Digital Call Sign Annunciator
- Basic PICmicroR Oscillator Design
- Making a Altimeter with the Basic Stamp II
- Supervisory circuit monitors modem connection
- Building a Basic Stamp I & PC Relay Controller
- Bit Banged LIN Slave Node for PIC16 & PIC18
- Build a PIC controlled DDS VFO, 0 to 6 MHz
- Build a PIC controlled DDS VFO, 0 to 6 MHz
- Calculating Program Memory Checksums Using a PIC16F87X
- Serial Cable for Casio Digital Cameras
- CD-ROM Drive as Digital-audio CD-Player
- Circuit converts between TTL and shifted ECL
- Circuit forms industrial-grade digital potentiometer
- Simple circuit "feeds" CMOS devices
- Clearing the Software Write-Protect Feature on the 24LCS52
- Divide and Multiply
- Closed-Caption Decoder
- CMOS IC makes low-cost digital potentiometer
- Code development for the PIC16C52
- Communicating With The MCP3221 Using PICmicroR
- 68HC11 synthesizes accurate sine wave
- Enhanced 4-Digit Alarm Keypad
- A CAN Bootloader for PIC18F CAN Microcontrollers
- A CANopen Stack for PIC18 ECAN Microcontrollers
- A Clock Design Using the PIC16C54 for LED Displays and Switch Inputs
- A Comparison of Low End 8 Bit Microcontrollers
- A FLASH Bootloader for PIC16 and PIC18 Devices
- A PC-Based Development Programmer for the PIC16C84
- A Real-Time Operating System for PIC16/17
- The AI-A-1 Robot
- Digital Switching System
- Digital sync-tip clamping: video-signal conditioning
- Digital tachometer avoids analog vices
- Digital timer has independent on/off periods
- Centronics port D/A converters and low-pass filter
- Video DVM
- Digital Volume Control
- Digital/Standard Phone Line Tester
- A PC-Based Development Programmer for the PIC16C84
- A Real-Time Operating System for PIC16/17
- The AI-A-1 Robot
- Making a Altimeter with the Basic Stamp II
- Supervisory circuit monitors modem connection
- Building a Basic Stamp I & PC Relay Controller
- Bit Banged LIN Slave Node for PIC16 & PIC18
- Build a PIC controlled DDS VFO, 0 to 6 MHz
- Demodulator makes low-cost optical tracker
- 10 Tricks for the '508A
- Keyboard to ASCII Decoder
- PC Serial Port Receiver
- 16-bit adjustable reference uses 8-bit digital potentiometers
- Two transistors form bidirectional level translator
- Build your own "2-Wire LCD Interface"
- PC Serial Receiver (57.6K Baud / TTL & CMOS)
- The 6090 Digital Decoder
- 68HC11 instruction halts external RC clock
- Demodulator makes low-cost optical tracker
- 10 Tricks for the '508A
- Interfacing Example - Keyboard to ASCII Decoder
- 16-bit adjustable reference uses 8-bit digital potentiometers
- PC Serial Port Receiver
- Two transistors form bidirectional level translator
- Build your own "2-Wire LCD Interface" using the PIC16C84 microcontroller
- 5V logic pulser is battery-powered
- The 6090 Digital Decoder
- 68HC11 instruction halts external RC clock
- 68HC11 synthesizes accurate sine wave
- 9 Second Digital Readout Countdown Timer
- An Intel 8088 Maximum Mode Single Board Computer System
- Enhanced 4-Digit Alarm Keypad
- A CAN Bootloader for PIC18F CAN Microcontrollers
- A Clock Design Using the PIC16C54 for LED Displays and Switch Inputs
- A Comparison of Low End 8 Bit Microcontrollers
- A FLASH Bootloader for PIC16 and PIC18 Devices
Analog to Digital Schematics
- Demystifying Sigma-Delta ADCs
- Differential ADC Biasing Techniques, Tips and Tricks
- Differential amp drives high-speed ADC
- Digital position encoder does away with ADC
- Dual 8-bit ADCs provide pseudo high resolution
- Driving the Analog Inputs of a SAR A/D Converter
- DPPs make nonvolatile microvolt DAC
- DSP chip connects to ADC over serial port
- Dynamic Testing of High-Speed ADCs, Part 2
- Mastering the PIC16C7X A/D Converter
- Filter cutoff tracks ADC conversion rate
- Improved amplifier drives differential-input ADCs
- Frequency dithering enhances high-performance ADCs
- Interfacing Microchip?s MCP3201 ADC to MC68HC11E9-Based Microcontroller
- Hardware histogram speeds ADC test
- INL/DNL Measurements for High-Speed Analog-to-Digital Converters
- Interfacing the MAX187 ADC to the BSII to measure voltages
- Temperature-measurement scheme uses IR sensor and sigma-delta ADC
- Single IC adds analog inputs to digital PLC
- Simple Analog to Digital Converter
- Defining and Testing Dynamic Parameters in High-Speed ADCs, Part 1
- Temperature-measurement scheme uses IR sensor and sigma-delta ADC
- Temperature sensor uses I2C isolator
- PLANS FOR A 4-CHANNEL 8-BIT ANALOG-TO-DIGITAL CONVERTER FOR PC
- Two wires control SPI high-speed ADC
- Understanding Flash ADCs
- Understanding Integrating ADCs
- Wide-dynamic-range A/D converters
- Single-Ended, Pseudo-Differential and Fully-Differential ADC Inputs
- "Zero-power" A/D converter uses printer port
- Isolated ADC reduces power consumption
- Layout Tips for 12-Bit A/D Converter Application
- Limiting amplifier makes efficient A/D-converter driver
- Low-power, low-voltage ADC is 0.05% linear
- Mastering the PIC16C7X A/D Converter
- Micropower MSOP 10-Bit ADC Samples at 500ksps
- Matched offsets put signals into ADC's range
- Missing-codes tester checks 16-bit ADC in 7 sec
- New 500ksps and 600ksps ADCs Match Needs of High Speed Applications
- New 14-Bit, 800ksps ADC Upgrades 12-Bit Systems with 81.5dB SINAD, 95dB SFDR
- New 16-Bit, 100ksps A/D Converter Runs on 5V Supply
- New 5V and 3V, 12-Bit ADCs Sample at 300kHz on 75mW and 140kHz on 12mW
- PICADC - a free, PIC based "intelligent" A/D converter
- Reference Voltage for Multiple ADCs
- Rearranged reference helps ADC measure its own supply voltage
- Pipeline ADCs Come of Age
- Printer port controls A/D conversion
- Serial Port A/D-converter
- Serial port drives 12-bit ADC
- Analog-input circuit serves any microcontroller
- Analog Sensor Conditioning Circuits
- Analog Design in a Digital World Using Mixed Signal Controllers
- Interfacing Microchip's MCP3201 Analog-to-Digital Converter to the PICmicroR Microcontroller
- Differential ADC Biasing Techniques, Tips and Tricks
- Simplify A/D Converter Interface with Software (TC7135)
- Interfacing Microchip?s MCP3201 ADC to MC68HC11E9-Based Microcontroller
- Using the MCP320X 12-Bit Serial A/D Converter with Microchip PICmicroR Devices
- Understanding A/D Converter Performance Specifications
- Layout Tips for 12-Bit A/D Converter Application
- PIC14C000 A/D Theory and Implementation
- Analog to Digital Converter
- Analog to Digital Conversion
- BIOS interrupt performs A/D conversion
- Simple circuit provides precision ADC interface
- Circuit provides reference for multiple ADCs
- Clean switcher powers 16-bit A/D converters
- Converter ignores power-supply variations
- Current-input ADC measures voltages
- DAC and op amp provide variable-control voltage
- A Comparator Based Slope ADC
- 555 Timer as an A/D converter
- PLANS FOR A 4-CHANNEL 8-BIT ANALOG-TO-DIGITAL CONVERTER FOR PC
- 2-channel ADC tags its own output
- 18-bit ADC uses PC's serial port
- 16-bit ADC provides 19-bit resolution
- 12-Bit Sampling A/D Converter Conserves Power
- A Tamper-Resistant Watt-Hour Energy Meter Based on the AD7751
- A/D Converters Easily Interface with 70 Series Microprocessors
- The A/D Easily Allows Many Unusual Applications
- How ADC Errors Affect System Performance
- High-Speed Analog-to-Digital Converters
- Comlinear CLC949 Support Circuitry
- AD7416 Connects to the PIC16F84 via Emulated I2CR Interface
- AD7416/AD7417/AD7418 Power-On Reset Circuit
- AD7732/AD7734/AD7738/AD7739 Calibration Registers
- AD7732/AD7734/AD7738/AD7739 in Low Power Applications
- AD9430 Evaluation Board Modifications for XTAL Oscillator Clocking
- ADC circuit optimizes key encoding
- ADC controls multiple stepper motors
- ADC multiplexer expander works transparently
- ADC enables temperature-compensated weigh-scale measurements
- ADC helps temperature-compensate transducer
- Simple ADC is surprisingly accurate
- ADC shuts down analog circuitry
- Sampled-Data, 10-Bit CMOS A/D Converter
- A Power Meter Reference Design Based on the ADE7756
- ADC-to-PC interface transfers data in nibbles
- ADCs for Simultaneous Sampling
- ADC's reference improves RTD measurements
- Automating ADC Data Collection
- Adding a simple 4-channel 8-bit A/D to a PIC17C4X
- Autocalibrator nulls dc offsets
- Simple Analog-to-digital Converter
- Serial Port A/D-converter
- Converting an analogue signal to a digital signal
- Analog to Digital Conversion and Communicating with a PC
- Analog-to-Digital Converter Captures 1Gsps
Data Logging Schematics
- Data-acquisition circuit measures everything
- TC7660 Powers RS232 Data Loop
- Implementing Table Read and Table Write
- Self made data-logger V2.5
- Automating ADC Data Collection
- Embedded Shock and Temperature Recorder
- RS-232C handshake transfer data frames
- Data Acquisition Circuits
- TC7109 Records Remote Data Automatically
- Seismic detector
- 16-Channel, 24-Bit Accurate Solutions for Data Acquisition
- ADC-to-PC interface transfers data in nibbles
- Chip carrier test
- Analog-Signal in Industrial Automation
- Data Encryption Standard with PIC17C42
- Universal Flight Controller/Datalogger
- Digital Storage Oscilloscope Adapter
- Accelerometer Schematic
- Centronics port D/A converters and low-pass filter
- Interfacing the LM12454/8 Data Acquisition
- Data-acquisition captures 16-bit voltage using USB
- Data Acquisition Using INS8048
- Ultrasonic Range & Imager
- Passive circuit monitors AES data
- Voltage follower with input resistance
- Single-Ended Signal Conditioning Circuits
- Magnetometer project
- Acquisition system is programmable on the fly
- Anti-Aliasing, Analog Filters for Data Acquisition
- Bang-bang thermostat
- Serial Port A/D-converter
- data-acquisition system runs at 625k samples/s
- Thermostat
- MiniLogger 4-channel differential MUX
- Ultrasonic Range Meter
- CMOS Logic Inverter Amplifier
- Brain-Wave Machine
- AUDIO DIGITAL NOISE GENERATOR
- Ultra-Sonic Ranging Design
- Asynchronous Communications with the PICmicro
- Evaluation Board for the AD7890, 12-Bit Serial,
- Digital Remote Thermometer
- Keyboard data-acquisition system
- CAPACITANCE PROBE CIRCUIT
- Reading Data From The Parallel Port
- PC-Based Data-Acquisition Board
- Interfacing DS2155 to MPC8260
- data frames over asynchronous RS-232C
- Temperature Sensor Project
- Data Logging 2
- Casio data logger
- low-cost optical tracker
- Tracking, Dual Rail Power Supply
- MAX1407 Complete Data Acquisition System
- Ultrasonic range finder
- Data Conversion, Interface and Signal Conditioning
- Moving & Shaping Information In Point-To-Point Applications
- Data Conversion, Interface and Signal Processing
- Data Transmission Parameters and Definitions
- Lie Detector
- Simple Remote Control Unit
- HONEYBEE TRAFFIC COUNTER
- Precision Digital Altimeter
- Laser Data Link
- Data-acquisition circuit draws only 10 mW
- Digital signals produce sine waves
- Addressable ADC
- Temperature Logger using Visual Basic 5
- Home Brew Compass Sensor
- Data-acquisition system uses fault protection
- Interfacing LM12454/8 to 80C51 Family
- Accelerometer Circuit
- Personal data logger for recording analog signal
- Water Level sensing and control circuit
- Small Lie Detector
- Interfacing the LM12458 to MC68HC11AX
- CIRCUIT FORMS DIVIDE BY 1.5 COUNTER
- Data Throughput and the MCP215X
- Pin Assignments for Data Communication
- Controlling The Real World With Computers
- LCD thermometer
- Earthworm Seismic Data Acquisition System
- Digital-Output Sensor Simplifies Temperature Acquisition
Data BUS Schematics
- Apple Desktop Bus
- RS485-like multi-drop bus
- PICDEM USB Board for PIC18 Full-Speed USB Microcontrollers
- USB Mass Storage Device Using a PIC MCU
- The CAN protocol basics and key features
- Integrated Interface Circuits
- Interface Between NECL and LVDS
- Single Port Fast Ethernet Transceiver
- (DFU) IMPLEMENTATION IN ST7 USB DEVICES
- HANDLING SUSPEND MODE ON A USB mouse
- (DFU) IMPLEMENTATION IN NON-USB APPLICATIONS
- Ping-Pong Buffering
- USB Power Management with LTC3455
- RS232 Transceivers circuits
- High Speed Bus Applications
- LVDS Data for High-Speed A/D Converters
- Bus Switches
- Bus Load Isolation
- USB from RS-232 UART Applications
- USB Port-Powered Battery Charging
- Low-Jitter Clock for High-Speed Data Converters
- visible optical link for RS-232C
- USB-power Dual-voltage regulator
- Interfacing PECL to LVDS
- Isolated RS232C for PIC16F84
- Low-cost RS-232C multiplexer
- Resistor-temperature detector with shutdown
- PC monitors two-way RS-232 transmission
- 3.3V & 5V Regulator to Run Computer & RS232
- RS232 Interface Circuits
- RS-232 Laser Transceiver
- ADC's reference improves RTD
- High Speed Transmission
- programmable CAN interface
- LVDS Quad Dynamic ICC vs Frequency
- LVDS Display Interface
- High Speed BUS LVDS
- Power Over Ethernet Using LM5070 & DP83865
- USB Microcontroller Programmer
- Data Conversion Design
- CROSSTALK of ITA25 IN RS232 TRANSMISSION
- Digital Crosstalk in Data Converters
- RS232/RS485 Multiprotocol Transceiver
- LVDS Bit Error Rate Testing
- RS232 Connections wiring up
- RS-232 Powered Temperature Sensor
- PC serial port buffer
- The RS-232/DALI Bridge Interface
- RS-232C interface
- RS232C Level Converter using Transistors
- RS-232C line-driver IC drives power MOSFETs
- RS-232C powers and reads 8-bit switch matrix
- A ST7263 FOR A USB MOUSE
- Ethernet 10BaseT simulator
- RS-232 Autobaud for the PIC16C5X Devices
Digital to Analog Schematics
- AD7528 Dual 8-Bit CMOS Multiplying DAC
- Add Programmable Gain Attenuation
- Understanding LOGDACs
- Add Programmable Gain Attenuation
- Mixed Signal Circuit Technologies
- Two-DAC circuit adds and subtracts
- Cascode circuit lessens DAC degradation
- Centronics port D/A converters and low-pass filter
- DAC's outputs from single-ended to differential mode
- Circuit loads eight-channel DAC from PC port
- Comparator/DAC Combinations Solve Data-Acquisition
- Recording Power Cycling Information Using the DS1602/DS1603
- D/A Conversion Using PWM and R-2R Ladders to Generate Sine and DTMF Waveforms
- D/A-converter ASIC uses stochastic logic
- DAC and Op Amp Generate Variable Negative Control Voltage
- Interface Design DS2151 and DS2152
- DAC and op amp provide variable-control voltage
- DDS IC plus frequency-to-voltage converter make low-cost DAC
- DPPs make nonvolatile microvolt DAC
- DSP chip yields high-speed D/A conversion
- Dual, Voltage-Output DAC Consumes Miniscule Power
- Force/Sense DAC Applications
- Technique Increases Low Cost DAC's Resolution
- "Zero-power" A/D converter uses printer port
- Variable-gain stage uses voltage-output DAC
- Inverter
- Make a DAC with a microcontroller's PWM timer
- Methods of Controlling Laser Drivers: POTs and DACs
- Multiphase DAC modifies R-2R ladder
- PC and DACs generate two simple analog outputs
- Reduce thermal transients in R-2R ladders
- S/PDIF Digital to Analogue Converter
- Use a DAC to vary LVDT excitation
- Twin DAC's produce true bipolar operation
- To92 Provide 87% DC-AC Conversion Efficiency
- Understanding LOGDACs
- CMOS Multiplying DAC Provides Constant Power
- Grounding for Low-and-High-Frequency Circuits
- Mixed Signal Circuit Technologies
Readouts Schematics
- POST repeater reads out remotely
- Picxie 2 - 8x8 Animated LED Signboard
- Circuit thermally compensates LCD contrast bias
- Driving VFDs with a PIC
- LC meter 16x1 LCD Display
- Switch configures bare-bones, two-digit display
- Digital Call Sign Annunciator
- Interfacing Example - 16 Character x 2 Line LCD
- Simple LCD interface takes two wires
- Signboard
- Signboard 2
- 7 by 10 LED Moving Sign
- 5x7 DISPLAY
- 7 by 10 LED Moving Sign
- AT90S2313, 2x16 LCD display and 4x4 keypad
- Picxie - Animated LED Signboard
- 28 LED Clock Timer
- SPI Interface Big 7-Seg LED
- 9 Second LED Timer and Relay Circuit
Decoder Schematics
- printer-port pin acts as an encoder output
- satellite-dish command decoder
- Receive Signal Decoders
- Surround Sound Decoder
- NTE789 Stereo Multiplex Decoder
- co-decoder fits into 32-macrocell PLD
- TDA1591 PLL stereo decoder
- Rotary encoder with digital potentiometer
- Stereo Decoder for FM Tuner
- Stereo Decoder Circuit
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