Description: This is a small 8 Bit Micro controller board for high performance systems. Micro controller: ATMega128 Hardware: up to 128kB external SRAM (Configuation with 0Ohm resistors). Plugable into your electronical design. External Batterie drive possible. External Brown out detection. Low drop voltage regulator. 2x V24 level converter. In system programable. 32.786 kHz crystal. For [...]
Description: Bright LEDs are cheap today. So many new projects with large amount of LEDs can be done. But there is one problem – large amount of LEDs consume large amount of energy. This is a project that implements special technique that allows driving efficiently hundreds of LEDs. This is a large PCB where 25×25 [...]
Description: This Distance Measuring project interfaces an application module with AVR microcontroller and two SFR04 sonic modules. Measuring principle is very simple. Measure time between sonic transmission and echo reception and then divide it by sound speed in this environment. The distance measured is displayed on LCD screen. This distance meter can measure distances from [...]
Description: Windmetter or so called anemometer measures wind speed up to 17 meters/s. Wind speed is measured and logged over period of 1/12 of a year and is stored for 11 months. Log can be read any time by connecting a computer to station. Anemometer is self powered from solar panel, which provides enough energy [...]
Description: One of SMD soldering techniques is using a reflow soldering oven. Reflow soldering technique is used when it is impossible to solder components by hand. These may include ball grid arrays (BGA), small pitch quad flat packs. Or simply solder any SMD element to make board look professional and smooth. Soldering oven controller is [...]