Downed Model Locator IIs
#locator
#tracking
#GPS
#recovery
#model aircraft
#security
#alarm
#wireless
#battery powered
#outdoor
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Wireless remote control switch circuit 5
The wireless remote control transmitter circuit consists of control buttons S1 to S16, resistors R1 to R3, a capacitor C1, a regulator diode VS, a crystal oscillator BC1, and DTMF encoder integrated circuits IC1 and IC2. The circuit components are...
My GPS LCD Display Project
This is a project that I started back late 2003 when I just starting to learn PIC programming. I wanted to building something that actually did something useful. This project is based on a PIC16F84. I actually came up with...
Homemade wireless remote control circuit diagram
The homemade wireless remote control circuit diagram illustrates a motor remote control transmitter circuit. The circuit utilizes a 555 timer along with resistors R1, R2, RP1, diodes VD1, VD2, and capacitor C1 to create a variable duty cycle astable oscillator....
Remote Operated Spy Robot Circuit
A remote-operated spy robot circuit can be controlled using a wireless remote controller. It captures audio and video information from the surroundings and transmits this data to a remote station via RF signals, with a maximum range of 125 meters,...
Quality Stereo Wireless Microphone or Audio Link
This stereo FM wireless microphone serves as an excellent audio link. Testing revealed a reliable range exceeding 50 meters. It is distinct from previous wireless microphones due to its stereo capability, which delivers unexpectedly high-quality sound. The range was tested...
Single Alarm Circuit
This is a single alarm circuit. The circuit includes automatic exit and entry delays, a timed bell cut-off, and a system reset. It has provisions for normally open and normally closed inputs.
The single alarm circuit is designed to provide security...
gps receiver for kenwood tm d710e
The mobile rig, a Kenwood TM-D710E, required a GPS receiver for APRS use. The GPS-710 was not readily available and was quite expensive, prompting the decision to build a custom solution. A Royaltek RGM-3600 GPS receiver was purchased on eBay...
Z3816A Modification
The Z3816A is a GPS disciplined timing source manufactured by HP in the mid-1990s, intended for use in cellular telephone equipment. It provides ten output signals through SMA connectors on the back panel. The first four connectors on the left...
A circuit diagram of a wireless hands-free telephone device
A wireless hands-free telephone device circuit diagram is presented below.
The wireless hands-free telephone device circuit diagram typically comprises several key components that work together to enable hands-free communication. The primary components include a microphone, speaker, Bluetooth module, power supply, and...