Circuit Lake

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 or anyone who wants to easily and accurately calculate carb content of their food. Beside Type 1 & 2 diabetics people, this food scale also suit for people on special diets.

Read more PIC based Carbohydrate Counter

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 within the spectrum gives an indication of which radioisotope is present.

Read more Radioisotope Analyzer

An electronic project design is a process to build electronics device with certain function using electronics component such as ICs, capacitors, resistors, cable and others. Sometimes build a electronics project is not only ‘connecting’ wire between electronics component but also involve chemical process, in this case PCB etching.

PCB Etching is a process removing unwanted copper after applying your Schematic pattern to blank PCB with chemical liquid. For better results and faster is recommended you use hydrochloric acid and Hydrogen Peroxide formula with water + 7 units 4 units 2 units of HCL + H2O2 than use Ferric chloride. With combination of H2O2, HCL and H2O, copper disposal process will be faster than using FeCL2. This method also has economical benefit. You can save mixed liquid at bottle glass and re-use it for next etching ( add more H2O2 or HCL when process is too slow).

You can buy chemical supply for etch PCB, hydrochloric acid and Hydrogen Peroxide, with affordable price at spectrumchemical.com. The site is trusted distributor for fine chemicals and laboratory products. They provide all material for chemical laboratories and industries such as dehydrated alcohol or absolute alcohol. If you have PCB production factory, fine chemicals in bulk package with right grade of material and high quality is best choice for you.

Don’t forget your safety when dealing with chemicals. Always use rubber gloves and eye or head protector. Spectrum Chemical also provide reliable safety item for chemicals. For more detail about their product you can visit their site.

This AVR ATmega8 based radar range finder project uses infrared light instead of ultrasonic. The project is built to detect sound absorbing materials like padded furniture which can not be detected by ultrasonic radar. Ultrasonic ranging systems require many milliseconds of acquisition time rendering them unusable for fast moving systems.

Read more Infrared Radar

This is LED lamp project powered by solar. It will harvesting the Sun during the day and charging the battery. The project uses SEPIC converter that capable of boosting or dropping the input voltage. It allows the use of a battery with a voltage close to the LED conduction voltage. The project is built around ATTiny15L microcontroller.

Read more Solar LED Lamp

The circuit is a easy design an Oscillator. The main component consists of the VCO (ICL8038), the CMOS-compatible output stage using the MOSFET driver chip ICL7667 and the sine and triangle output stage (LT1210). It is capable of producing sine, triangle and square wave output with a frequency up to several hundred kHz. Read more Oscillator Project Using ICL8038

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. Read more 100Hz-2.5GHz Frequency Counter