Look RS232 is a tool for debugging computer connection with peripheral devices using COM port, such as modem, mini-ATS, projector etc. Its easy to use interface guarantees an easy work with Com-port.This software can send data through COM port, receive data from an outer device through COM port, it has port indication as well.Look RS232 supports connection at the standard speed of 110โ€ฆ115200 kbit/s, it supports commands of COM port program control and supports data input in ASCII, BIN, HEX, OCT formats, keeps log of the sent and received data and commands in ASCII, BIN, HEX, OCT formats, it has an option of time link (relating to COM port activation).[read]

AVR-CDC is an USB-RS232C interface using CDC (Communication Device Class) protocol on USB 1.1. Although CDC is a part of USB 2.0 standard, it works on low speed USB with slower speed. ATtiny45 can handle the 4800bps 8N1 well enough.No dedicated driver necessary. CDC loads Windows built-in usbser.sys.It is very low cost ith ATtiny45, this is the cheapest solution for the USB-RS232C interface.[read]

This is a Data logger to save values from a tipping-bucket rain gauge.It consist of on-board 4mBit (512kB) Data flash is used to store the values. Readout to the Windows download software developed for this project takes place via serial port (RS232).[read]

The current concept incorporates a wireless transmitter and receiver and is thought to be used for remote controlled airplanes or appliances with two seperate parts. In other words, we have one dedicated transmitter (acquisition, filtering) and one dedicated receiver part (user-interface, look-up table, calibration, storage), capable of being connected together with any physical layer, e.g. wired, wireless, infrared. If you want to build a standalone altimeter/variometer just for hiking or mountaineering, this setup can obviously be simplified by omitting the wireless components.The following components have been used: Analog to digital converter NSC ADC12130, a Microchip PIC16F84 controller, a quad op-amp NSC LMC660, a Maxim MAX232 RS232 level shifter, and the Motorola MPXS4100A absolute pressure sensor.[read]