This project displays telephone numbers decoded from tones. A microphone picks up the tones, a preamplifier boosts the signals, an SSI-202 DTMF chip decodes the tones, a Basic Stamp acts as an interface to an LCD display and also provides “RS-232″ serial output.The software for this project. It is only a bare-bones program. The smart people that build this circuit will surely write some better programs.source

Here is a simple way to track the location of a vehicle and identify whether it has an authorized driver based on 1-Wire® technology. This has many uses such as finding stolen vehicles, creating automatic vehicle logs, and managing a fleet of trucks and buses. An example of how to do this is described. It uses a Garmin GPS 35 GPS receiver, a Siemens TC35 GSM module, a DS1990A iButton®, a Parallax BASIC Stamp® (BS2P) microcontroller, and, of course, sample source code.source

A simple, yet capable, seismometer that teachers can use to instruct the fundamental principles of seismology can be constructed using a Basic Stamp and two Memsic 2125 accelerometers.Each accelerometer has two axes. One accelerometer for the X and Y-axes and one accelerometer for the Z-axis were used in the prototype. The Memsic accelerometers are capable of measuring up to +/- 2 gs with a resolution of about .001 g. Taking into consideration the 32-bit limitation of the Basic Stamp and the 2uS resolution for measuring pulse width, the combo can resolve to around .002 g.source

Here is one way to combine the best of both worlds and make a normally autonomous Boe-Bot remote controlled – complete with joystick rumble feedback for sensor detections.The toughest part of this project is building the mechanical/electrical interface. You can solve the connector problem by buying a $10 PlayStation extension cable and carefully cutting the socket from one end of it. With a few resistors and a transistor the circuit will be complete and will protect the BASIC Stamp® microcontroller from any dangerous game controller induced electrical noise.source

This application interfaces a DCF77 receiver module to a BASIC Stamp® microcontroller. The DCF77 module receives time information from the standard time transmitter in Mainflingen, Germany. The BASIC Stamp module converts this information to RS-232. Each second it output’s a complete time string at 2400 bps.

DCF77 is a longwave time signal and standard-frequency radio station. Its primary and backup transmitter are located in Mainflingen, about 25 km south-east of Frankfurt, Germany. It is operated by T-Systems Media Broadcast, a subsidiary of Deutsche Telekom AG, on behalf of the Physikalisch-Technische Bundesanstalt, Germany’s national physics laboratory. DCF77 has been in service as a standard-frequency station since 1959; date and time information was added in 1973.

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