Circuit Lake

Electronic Project and Circuit Collection

Rs232 Related Resources

Air Humidity and Temperature Data Logger

March 22, 2013 By: admin Category: Data Acquisition, Measurement, Monitoring, PIC No Comments →

This temperature and air humidity data logger is built based on PIC16F876A microcontroller and SHT11 sensor. The sensor provides accurate measurement and is fully calibrated (no need to calibrate from user). The logger can measure temperature with range from -40°C to 99°C and Humidity from 1 – 99% with resolution 0.1°C temperature and 0.1% RH. […]

Low-Cost PC Oscilloscope for Hobbyist

March 20, 2013 By: admin Category: Measurement, Software, USB No Comments →

This project shows you how to build simple and inexpensive PC-based Oscilloscope that has sufficient feature for hobbyist and student. Built based on Picaxe 28X1, the scope measure frequency up to 150 kHz (better than soundcard oscilloscope). It has digital sample rate 1 MHz (1 million samples per second) and maximum voltage range is -15 […]

Serial Terminal Program, HTerm

February 07, 2013 By: admin Category: Interfacing, Software No Comments →

HTerm is a terminal emulation program for the serial interface (COM), which runs on Windows and Linux. It is useful debugging tool for serial communication applications. It support for arbitrary (virtual) serial (RS232) ports and support all available on the target hardware baud rates.

Open Source FPGA Based Logic Analyzer

September 17, 2012 By: admin Category: FPGA, Measurement, Tools No Comments →

The aim of the project is to build a logic analyzer for home use using FPGA. The device uses a Xilinx Spartan 3 Starter Kit (DO-SPAR3-DK) evaluation board manufactured by Digilent. It features a XC3S200-4 FPGA with 4ns propagation delay and 3840 cells. Onboard are 1MByte of 10ns SRAM and plenty connectors that can be […]