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Casio LCD graphing data loggerAn handheld data logger that uses a Casio Graphing Calculator as its main display, calculus and backup unit, connected to the external world thanks to a PIC16F84 and a 12 bit A/D converter!
This design awarded the best overall prize at the Circuit Cellar's Design '98 international design contest. I'm very proud of it: with all these top-quality international entries, I feel like winning the Designer's Olympic Games! |
PC thermometerA simple yet accurate thermometer that adds a "temperature icon" to the Windows taskbar.
Study the code and learn how to control IIC bus devices from high level languages! This one of the most popular
designs of this web site. |
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Video DVMA digital volt meter that displays voltages on your TV screen, with both giant digits and an analogue bar display. Maximum and minimum peaks are displayed, too. Serial output for use as a data logger in conjunction with your PC.
This design awarded the third international prize at the Elektor Electronics 1997 microprocessor & microcontrollers design contest. |
Scriptable thermometerA thermometer with a computer built-in. It can be programmed in a basic-ish language (the editor is built in, too).
This design awarded the "application of the day" international prize at the National Semiconductor's COP8FLASH design contest. |
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RF padDifferently from the usual combination locks, this circuit replaces RF remote controls. Enter the correct combination to transmit a code compatible with the popular remotes based on the MM53200, UM3750 and UM86409.
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Bingo! (on your TV)A bingo or lottery
generator.
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Slot car video cronographAnother variation around the theme of video generators based on the Atmel AT90S1200. This triple TV-chronograph is triggered by photocells: gives you a "ready - set -go" sequence through red and green semaphore lights (with impartial random timing), reveals jump starts, takes times with one hundreth of a second precision, and finally -surprise surprise- send those times to a computer (not required) via a serial link, just in case you want to write a tournament/timing program. |
Tiny Planet SMS controlControl
your home automation system, switch the burglar alarm or any
other equipment with your cellphone. |
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"Good old" parking sonarAn ultrasonic sonar that shows distances from obstacles with both a LED bar graph display and an alarm buzzer. It was one of my first designs, and does NOT use special components nor microcontrollers, since the "good old" name. |
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The relay switches on as long as the correct card is in. Converts pirate-smartcards to pacific and legal use
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click here for more designs... |
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Need a free programmer?Try the Claudio Lanconelli's SI_PROG with PONY PROG software. It programs AVR's , PIC's, Atmel 8051 flash derivatives, and a lot of serial memories, too (Scenix in progress...) . Supports all big capacity chips as the 24C64 and 24C65, and both I2C and Microwire. Very good free windows software. |
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