Simple and efficient inductive telemetry system with data and power transmission
#inductive
#telemetry
#data transmission
#power transmission
#wireless
#communication
#sensor
#RF
#energy
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RF wireless allarm magnetic switch PIC16F84
This circuit was formed to create a wireless alarm from a normal magnetic contact. By fixing the magnet to the leaf of a door, or swing of a drawer, it is easy to reveal the opening. To transmit the signal...
Wireless Microphone
Q1 amplifies the output from an electret microphone (MIC1). The audio signal is fed into oscillator Q2, which modulates the signal. Additionally, L1 and C1 form a tank circuit designed for operation in the 88-MHz frequency range. The antenna consists...
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...
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,...
Wireless video camera link
This high-performance video camera link transmits signals from a video camera to a VCR or from a VCR to TVs throughout a home. The initial stage of the RF chain features a crystal-controlled oscillator, Q1, operating at a frequency range...
Composed of TDC1808/TDC1809 digital coding control circuit diagram
The TDC1808/TDC1809 is a pair of wireless remote control transmitter and receiver components. They utilize an internal antenna to transmit both digital and analog signals. These components are suitable for various wireless remote control devices. Key features include compact size,...
handheld RF-Powermeter for multiple sensors up to 12 GHz
A few years ago, a diode-sensor based RF power meter was built using a 68HC11 microprocessor. Prior to that, an analog RF power meter with a thermal power sensor was developed. The datasheets for logarithmic amplifiers, which promised a measurement...
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...
Add a sensor to a board and measure something with it
This week's plan is to build a device that warns of the potential for a knockdown, which is the process by which an over-canvassed ship is laid over on her beam-ends. The risk of sinking is high during this event,...