Circuit Lake

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This multi purpose project is built around MCU AVR AT90S2313. Besides as Frequency meter, the project can be used as Pulse Generator too (combined counter and frequency meter). It doesn’t have any front panel controls because the user interacts via an RS-232 terminal program at 9600 baud. The user controls reads data via an [...]

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In many applications loss of battery power is a problem causing no real harm. But, this is not the case in radio control (R/C) model aircraft. If the aircraft batteries “go dead” in flight it generally results in total destruction of the model and can represent a safety hazard.

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This portable 2.4 GHz Spectrum Analyzer is built inside a cell phone case, Nokia 3410, and used the phone’s graphical LCD to display measuring results. It uses AVR ATMega8 as main controller and CYWM6935 module. The software is written in C using arv-gcc under Windows (WinAVR). The program runs continuously and make around six [...]

The purpose of the project is to monitor the temperature of three compost heaps. It will send the data wirelessly to the receiver and process or display the result to PC. In the transmitter board, the project uses the TXM-433 as RF transmitter and MCU AVR AT90S4433 (you can replace it with AVR ATMEGA8) as [...]

The CarbCounter+ is PIC32MX460F512L based Food Scale combined with a PDA. The device built to help people with Diabetes manage, log and calculate their Carbohydrate information. This allows for more accurate insulin dosages and control, thus reducing the possibility of complications later in life. CarbCounter allows parents of toddlers, school kids, people on the go [...]

This Radioisotope Analyzer project is built around PIC32MX360F512L. The device used for identifying and studying sources of ionizing radiation. This handheld laboratory instrument will processes the signal from a sensor called a “scintillation probe”, analyzes and stores the data, and produces a graphical output known as an “energy spectrum”. The location and amplitude of peaks [...]

This frequency counter can measure frequency with range 100Hz-2.5GHz. The project features including LCD 16 chara.x 2 lines and TCXO 12.8MHz(1ppm ). The project main part is PIC16F84. The Voltage(0-510mV) of the input signal is also indicated on the LCD , therefore tuning of the coil can be conducted while checking the frequency.