Circuit Lake

Electronic Project and Circuit Collection

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Optical Photoelectric Beam Sensor: Imaging Silicon Security

March 04, 2012 By: admin Category: Microcontroller, Project, Renesas, Security System, Sensor No Comments →

This project is a simple Renesas M32C/84 microcontroller-based Optical PhotoElectric Beam sensor. It could be used for various applications such as security sensor, optical switch counter, electronic lever trip alarm, etc. This project tends to do something different from the usual use of optical navigation sensor for movement detection. It will use the image capturing […]

Generic Finite State Machine Interpreter

February 08, 2012 By: admin Category: Control, Interfacing, Microcontroller, Miscellaneous, Project, Renesas No Comments →

A Finite State Machine (FSM) is a versatile mechanism to implement sequential digital circuits. This project implements any desired FSM using the Renesas microcontroller instead of flip-flops and logic gates. The system has a PC based GUI interface where the user can represent the required FSM using a simple State Transition table or a State […]

Eight-Channel RF Remote Controller

January 24, 2012 By: admin Category: Control, Digital, Microcontroller, Project, Remote, Renesas No Comments →

This controller was developed using Renesas SKP16C62P Starter Kit Plus. Each remote controller is controlled via RF. There are four types of generic control: general purpose timer, sprinkler timer, cooler, and heater. Each Controller may have up to 4 stations, (the Sprinkler Timer may have 8 outputs by multiplexing the outputs). Each controller’s program is […]

Mini Point-of-Sale Terminal

January 09, 2012 By: admin Category: Interfacing, Microcontroller, Miscellaneous, Project, Renesas No Comments →

This project is a portable Point of Sale terminal designed specifically to handle lab manual and class supply sales in a university environment. This involves three short but very busy sales periods per year ( less than 1 week each), using staff with no training on a cash register per-se. Commercial POS terminals were thought […]