Erik Grindheim and Engineering Assistant

Some projects are Audio VU meters, Serial Port PIC programmer and other interesting articles. The low and high logic levels are displayed by LEDs,which are OFF if the probe tip is floating or connectedto a hi-impedance (>220k) output. A pulse transition isdetected and is indicated by turning on the LED for80 ms.

Logic State Analyzer – The analyzer fetches 300 single bit samples at a select-able rate (in 16 steps from 40 Hz to 1 MHz). It has aprogrammable start at High-to-Low or Low-to-Hightransition at input. Digital waveforms are displayed in apseudographic mode on the LCD

Electronics pages of Erik Grindheim and Engineering Assistant

Engineer’s Assistant – Electronic hand-held instrument invented by mr. Voja Antonic. It’s based on Microchip’s PIC16F84 (running at 10 MHz) and a standard 2×20 character LCD-module.

Engineering Assistant Using PIC16F84A

This compact instrument is intended to be a digital lab-oratory tool for hardware and, in some cases, softwaredebugging. It contains four instruments in one unit:logic probe, single channel logic state analyzer, fre-quency counter and serial code receiver.

The only chip used is a PIC16F84A running at 10 MHz.The display unit is a LCD dot matrix alphanumeric mod-ule with 2 rows of 20 characters. The LCD is used asthe display device for all functions, except for the logicprobe which indicates low, high and pulse logic stateson individual LEDs. Mode select, parameter change,function execute and ON/OFF switching is activated bytwo keys.The probe tip is the common input for all functions, andthe GND cable is used for connection to Vss of thetested circuit.

  • High Speed Photography – HSPHigh Speed Photography – HSP
    Here is a small list of photography related circuit and projects including High Speed Photography or HSP that uses Electronic Circuits to operate the Trigger [...]
  • Instructables – Craft DIY Tech Hobby
    Instructables – Craft DIY Tech Hobby “Instructables is a web-based documentation platform where passionate people share what they do and how they do it, and [...]
  • Applied Magnetics by Barry Hansen
    Barry Hansen enthusiasm for Coilgun Designs has created an EE education portal. Applied Magnetics by Barry Hansen See the RLC Simulator and Inductor Simulator. By [...]
  • DC Circuits – University of Guelph
    DC Circuits – University of Guelph Schematic Diagrams Complicated Circuits Ohm’s Law Kirchhoff’s Current Law Kirchhoff’s Voltage Law Resistors in Series Resistors in Parallel Physics [...]
  • DDDAC 2000 – Audiophile projects
    DDDAC 2000 – Audiophile projects Dedicated Website for Audiophile projects, such as a Diy High End DACs, Loudspeakers, Tube Amplifiers – Doede Douma Setting up [...]
  • HobbyCorner – Ben Zijlstra
    HobbyCorner – Ben Zijlstra Interfacing and Embedded Systems Projects from Ben. Weblog Ben’s HobbyCorner
  • Diode Thermometer
    Measurement Of Temperature – When power transistors are used, they may tend to over heat. Likewise resistors may also overheat in the event of faults [...]
  • Digi – Wireless Device Networking
    Device networking for business, develops reliable products and technologies to connect and securely manage local or remote electronic devices over the network or via the [...]
About delabs 462 Articles
delabs is a web-service for product design and development.

Be the first to comment

Leave a Reply