In this project we are building a basic and low cost frequency counter circuit . It can measure from 16Hz to 100Hz signals with a maximum amplitude of 15V. The sensitivity is high, the resolution is 0.01Hz. The input signal can be a sine, a square or a triangle waveform. The counter can be used […]
This project is not to introduce Tic Tac Toe. Everyone knows this game. It’s to introduce two features. Bi-coloured LEDs, microcontrollers and the skill of writing an ALGORITHM. You can use the project to learn the skills of creating the Tic Tac Toe program or create animations on the 3×3 display. Tic Tac Toe is
A friend of mine and I want to share with you what I did to set the thermostat circuit. As I used the circuit temperature sensor Ds18B20. 3-digit, 7 shows the screen with dijit. Please note that the range of 0 to 99.9. When the relay circuit arranged to set value is designed to get
PIC16f628 DS18B20 Adjustable thermometer circuit Read More »
Introduction This program is a network power resetter. It controls a solid-state-relay that is in series with 110VAC that supplies power to a satellite internet receiver, various routers, etc. Once every 24 hours it drops power for 10 seconds to allow the receiver and routers to start clean, something that seems to be necessary to
This project is what you have been waiting for. Remember the scrolling signs you see in shops and on advertising billboards? Now you can program your own moving sign with all the effects you can think of. We have provided a blank canvas in the form of a scanning screen 15 LEDs by 7 LEDs
Control up to 8 devices by this easy constructable remote control. It can work as a radio or infrared remote control, depending on the components. Each device output can be configured to be momentary (turned on while you press the button) or latched. Latched outputs can be toggled on/off by one button per channel, or
Pic-plot now goes to USB! A perfect low cost solution to quickly get screen plots of your GPIB instrument on your laptop PC without complex software. It emulates the HP7470A operation on the GPIB side, and outputs the HP-GL data at the USB port to be read and stored on the PC by any capturing
I am a big fan of LEDs. Bright, colorful, flashing LEDs. So, given my affinity for LEDs, I decided to work on a controller that me and a few of my friends could use as an art project/passive information display. I have posted videos from the first prototypes (here and here), but it has been
Just one PIC to use it as counter with multiple functions. Here is the pin information: PIN FUNCTIONS: CLEAR/COUNT – GND to clear count, VSS to count. SAVE COUNT – GND start from zero on power up, VSS continue last count. C CATHODE/C ANODE – GND to use COMMON CATHODE Display, VSS to use
I had designed a remote unit for my ST4000+ autopilot. It did prove out the concept and I used it a lot, but it sported an unsightly coil cord (and of course unsightly coil cords have no place on boats) so I decided to build a wireless remote. The system (handheld Tx unit and stationary
WIRELESS REMOTE CONTROL for Raymarine ST4000 Autopilot using PIC16F628 Read More »
