Open 7400 prize: RaspberryPI from HubCityLabs

HubCityLabs hackerspace from Moncton,Canada is the latest sponsor of the Open 7400 Competition. Up for grabs is a Raspberry PI for a Canadian entry. This and other prizes could be yours, but only if you get your entry in soon! Thank you to HubCityLabs for sponsoring the 2012 Open 7400 Logic Competition!

7400 competition entry: Data encryption and decryption system using 74xx logic gates

Nakul built a 7400 based data encryption and decryption device. It works on the cellular automaton algorithm: Encryption and decryption plays a vital role in today’s digital world. So we thought of implementing an encrypting and decrypting device using only 74xx logic chips. The encryption algorithm is based on cellular automaton. Rule 30 of the cellular […]

7400 competition entry: 4-bit SAR analog to digital converter

Marco entered a 4-bit SAR ADC made from discrete logic chips 74xx & 40xx series for the Open 7400 Logic Competition. The SAR (Successive approximations) works by comparing the analog value to be converted with a generated value with a method similar to the mathematical bisection method. More precisely, it starts comparing, by a simple difference, the input […]

7400 competition entry: Telemetry Beacon for HAM Sats

Mani entered a Telemetry Beacon for HAM satellites using Logic gates for the Open 7400 Logic Competition. The beacon controller is intended for telemetering of data available on board of the Ham radioSatellite (originally designed for the Indian Satellite VUSAT in Morse code so that the hamradio operators can decode the info without any costly and […]

7400 competition entry: 4000 series CMOS 24 hour clock

Easton made this 4000-series CMOS 24-hour clock as a final high school electronics class project. Rather than using a microcontroller he chose to use CMOS ICs including a 4060 and 4013 to generate the 1Hz signal. This is the latest entry in the Open 7400 Logic Competition. For the last couple months a friend and […]

7400 competition entry: DIY 6502 computer

6502s are 8bit microprocessors from the 70s developed by MOS Technology. Sweet thing is they come in DIP-40 trough hole packages, although we doubt an emulator based on 7400 logic chips will fit the same package. Check out André’s DIY 6502 computer for the Open 7400 Logic Competition. I have built a DIY 6502 computer, […]

7400 competition entry: 4049 inductance meter

Mike’s 4049 inductance meter converts inductance into voltage, which can be read via any multimeter. Check out the latest Open 7400 Logic Competition entry: All the decent multimeters nowadays seem to have a built in capacitance meter, but only a few of the really expensive ones have a built in inductance meter. Dedicated inductance (LCR) meters, of course, […]

7400 competition entry: TV Auto-off from the ’80s

Are you tired of watching TV and want to turn it off quickly from your armchair? Viktor’s TV Auto-off shows you how: The idea was to have a tiny light come up right next to the TV after a preset period of time. If my grandpa is watching TV he would notice it and press […]

Open 7400 prize: Au$100 gift voucher from Little Bird Electronics

Little Bird Electronics donated a Au$100 gift voucher for the best Australian entry to the Open 7400 Competition.  It is limited to a participant in Australia only. Thank you to Little Bird Electronics for sponsoring the 2012 Open 7400 Logic Competition!

Open 7400 prize: RGB LED Matrix Backpack from Logos Electromechanical

Logos Electromechanical donated a four-pack of 8×8 RGB LED I2C backpack kit to the Open 7400 Competition. Get your entry in and this and other cool hardware can be yours. This backpack allows you to drive our 60mm RGB LED Matrix using just a single I2C bus. Not only does this save you the rats nest […]

Open 7400 prize: DE0-Nano development kit from Terasic

Terasic donated a DE0-Nano development kit to the Open 7400 Competition.  Get your entry in and this and other cool hardware can be yours. The DE0-Nano board introduces a compact-sized FPGA development platform suited for prototyping circuit designs such as robots and “portable” projects. The board is designed to be used in the simplest possible […]

Open 7400 prize: Books from Electronics-Lab.com

Electronics-Lab.com sponsored the Open 7400 Logic Competition, these great books will be in the prize pool: Programming & Customizing PICmicro Microcontrollers – Myke Predko PIC: Your Personal Introductory Course, Second Edition – John Morton PIC in Practice – David W Smith PICmicro Microcontroller Pocket Reference – Myke Predko Thank you to Electronics-Lab.com for sponsoring the 2012 […]

Open 7400 prize: ICD 3 and an Explorer16 from Microchip

Microchip donated an ICD 3 and an Explorer16 to the Open 7400 Competition.  Get your entry in and this and other cool hardware can be yours. MPLAB® ICD 3 In-Circuit Debugger System is Microchip’s most cost effective high-speed hardware debugger/programmer for Microchip Flash Digital Signal Controller (DSC) and microcontroller (MCU) devices. The Explorer 16 is […]

Open 7400 prize: VideoOverlayShield from Low Voltage Labs

Low Voltage Labs donated a VideoOverlayShield to the Open 7400 Logic Competition. Send in your entry and this and other cool hardware can be yours. The Arduino compatible shield board overlays text on analog video, using the Maxim MAX7456 on-screen display chip. This board allows easy overlay of text onto an analog video signal, NTSC or […]

Open 7400 prize: Stair lighting controller kit and 10 stair lights from Hacked Gadgets

Hacked Gadgets donated a stair lighting controller kit and 10 stair lights to the Open 7400 Logic Competition. Get your entry in and this and other cool hardware can be yours. This is a Stair Lighting Controller board and all components that are needed to assemble it. These parts will need to be soldered onto the […]

Open 7400 prize: $100 gift voucher from ProtoStack

Protostack donated a $100 gift voucher to the Open 7400 Competition. Get your entry in and this and other cool hardware can be yours. Protostack is an online hobby electronics store with boards, microcontrollers, and other hardware needed to get you started with electronics projects. The ATmega328 Development Kit contains everything you need for a […]

Open 7400 prize: C2000 Piccolo LaunchPad from C2kCentral forum

C2kCentral forum donated a C2000 Piccolo LaunchPad- LAUNCHXL F28027 to the Open 7400 Logic Competition. Get your entry in and this and other cool hardware can be yours. The C2000 Piccolo LaunchPad is an inexpensive evaluation platform designed to help you leap right into the world of real-time control programming on the C2000 Piccolo microcontrollers. […]

Open 7400 prize: Ethernet+CAN Evaluation kit and Stellaris LM4F120 Launchpad

Stellarisiti forum tossed in 2 EKT-LM3S8962 Ethernet+CAN Evaluation kits with 128*96 OLED display and 1 Stellaris LM4F120 Launchpad (Releases September 25th) for the Open 7400 Competition.  Get your entry in and this and other cool hardware can be yours. The Stellaris LM3S8962 Evaluation Kit provides a compact and versatile evaluation platform for Ethernet + CAN enabled Stellaris […]

Open 7400 prize: EZ430-RF2500 and OLED Booster Pack from 43oh forum

The 43oh forum donated an EZ430-RF2500 and a 43oh Terminal OLED Booster Pack to the Open 7400 Competition.  Get your entry in and this and other cool hardware can be yours. The eZ430-RF2500 is a complete wireless development tool for the MSP430 and CC2500. It includes all the hardware and software required to develop an entire wireless […]