make gps gsm tracker
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Antennas for HAM transmitters
Antenna is the means by which a wireless operator puts his signal into the space and also through which he picks up the signals of the stations with which he wants to communicate. Hence after having a good Receiver and...
Metal detector circuit
The project demonstration has been successfully completed, with the only remaining task being the final project report due on June 15, which will be integrated with a conference paper. This update marks the last entry in the electronic notebook, although...
GPS RF front-end circuit MX2740 circuit
The MAX2740 is a complete GPS receiver down converter chip that processes the signal from the antenna to the input of digital signal processing. The receiver channel of the MAX2740 includes a low-noise amplifier (LNA), a downconverter, a variable gain...
building a gps logger
The user interface will consist of a single button and several LEDs or an RGB LED through which all user communication will occur. An overview of the proposed system states and transitions is given below. Pressing the button will wake...
GSM GPS shield for Arduino Board
This shield for Arduino is designed based on the GSM/GPRS SIM900 module or the GSM/GPRS & GPS SIM908 module, enabling voice calls and data connections via GPRS. The supply circuit utilizes a simple LM7805 voltage regulator. To operate, it requires...
GPS RS232 Dev Board
Once the setup of an RS232 connection is understood, it becomes a straightforward process for future projects. This design features a compact SMD version of the power supply, which can also be constructed using through-hole components on a breadboard. The...
12ft GPS Wall Clock
A discussion was held regarding the creation of a 6-foot tall alarm clock, modeled after a Timex faceplate. Initially perceived as an impractical idea, the project faced challenges that led to its suspension. However, the discovery of pre-packaged LED light...
TRF Radios
A small Medium Wave antenna from a walkman with digital radio and a variable capacitor (VC) with two sections connected in parallel from an old Russian radio (2x280pF). It has been noted that in areas with strong signals, optimal performance...
Tracking System using GPS and GSM modem
In this project AT89S52 microcontroller is used for interfacing to various hardware peripherals. The current design is an embedded application, which will continuously monitor a moving Vehicle and report the status of the Vehicle on demand. For doing so an...