Remote Control Receiver Circuit
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IR Remote Control Extender Circuit (Mark 3)
IR appliances use pulses (control signals) sent over a modulated IR carrier wave. The carrier wave may be modulated at various frequencies, 36-38KHz being the most popular. Some Satellite receivers use even higher frequencies than this. The IR1 remote module...
Closed-Loop Automatic Power Control for RF Applications
This is a circuit for Closed-Loop Automatic Power Control for RF Applications. The circuit utilizes a log detector (AD8318) and a variable gain amplifier (VGA) (ADL5330).
The Closed-Loop Automatic Power Control (APC) circuit is designed to maintain a consistent output power...
Remote control robot circuit
The remote control robot circuit is illustrated in the accompanying figure. Figure 2-36(a) presents the circuit diagram, while figure 2-36(b) depicts the operating timing diagram. The robot's rotation process involves an ultrasonic launching circuit, which consists of a 40 kHz...
2 transistor fm transmitter
A pair of BC548 transistors has been utilized in this circuit. Although they are not specifically designed for RF applications, they still provide satisfactory performance. An ECM microphone from Maplin Electronics, model FS43W, has been employed. This is a two-terminal...
41-72MHz micro-receiver ( MC3362 )
This receiver weighs about 6 g, used in 41 and 72 MHz, met a great success with readers of the magazine. The RX22 is the subject of these lines is improved RX20. Adding a preamp-HF improving sensitivity. Establishment of an...
Inexpensive Remote Watering System
This remotely controlled watering system is both inexpensive and easy to expand. It is designed to operate in conjunction with a conventional watering timer.
The remotely controlled watering system is an innovative solution for automated irrigation, allowing users to manage watering...
1watt AM/CW 10-meter band transmitter
In this project, you will make a simple 3-stage low-power broadcast-type circuit, using a crystal oscillator integrated circuit and a collector modulated AM oscillator with amplifier. You can connect the circuit to an electret microphone or amplified dynamic microphone. Using...
Rf Preamplifiers Circuit
In this basic MAR-x-based circuit, both the input and output consist of a single DC-blocking capacitor (C1 for the input and C2 for the output, respectively). The DC power supply network, which includes L1 and R1, is connected to the...
Wireless Coupler Terminal Interface
The purpose of the terminal interface is to allow my computer to communicate with Minimum Mass Wireless Coupler equipped devices using a terminal emulator program. Consequently, the Base Unit is basically an RS-232 interface and Minimum Mass Wireless Coupler. The...