Contact
Home Electronics Software 3D Printing Miscellaneous
µServer
AIR
BluePrint
16x16 Matrix
µTetris MSP430
USB Power Monitor
WeatherDisplay
Winamp Control
CPC
AVR ISP Insulator
Logic Insulator
USB Insulator
USB UART Insulator
AVR: LCD Driver
AVR: USB Stuff
AVR: De-Bricker
Temp-O-Clock
Touch-O-Clock
Digital Analog Clock
Block Clock
Binary Clock
Module: Rambo-S
Module: INA226
current sensor
Module: Nokia LCD
Module: misc
voltage modules
Module: DS3231
RTC
Module: VS1011e
MP3 decoder
Module: OSD
Module: SD-Card
Module: USB<->UART
Auto Video Switch
Enctest
GB Camera
Robot: Gizmo
IR Remote Control
Keyboard Extender
Laser Tagger
UV Timer
Thermometer
Telephone Control
Telephone Spy
Games
Blinking Hearts
EGG Timer



The CPC (Chain Punch Counter) is an optical device for martial artists. It can count the so called "Chain Punches" - a technique from the Wing Tsun Kung Fu martial arts.
picture
There is an optical sensor. The student simply applies the chain punches between the CPC and a light source.
picture
There are two modes. The simple counting mode displayes how many chain punches were made. The key feature is a 10 second timed mode. The student applies the chain punches as fast as he can. The CPC then makes a beep when the 10 seconds are over and displays the average number of punches per second. WingTsun Masters are able to aplly up to 12 full force punches in one second!
picture
The top of the PCB.
A: The sensor. A programmable light-to-frequency converter. TSL230
B: The alphanumeric 4 digit LED display. SLG2016
C: The Brain. An AVR ATtiny2313 clocked with 10,24MHz.
D: The sounder.
E: The lead to the push button that is inserted in the front panel.
The CPC also has an auto-off function.
picture
The etched side of the PCB. I designed it with the freeware version of EAGLE.
picture
A functional picture.
picture
LAST
NEXT