relay interfacing with avr slicker
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Lantern making use of a relay control circuit
220V mains electricity is sent through a 0.33 µF capacitor (Ci) and a 50 kΩ resistive drop. A bridge rectifier composed of diodes D1 to D4 converts the AC voltage to DC. After passing through a 100 µF capacitor for...
No inductive analog relay circuit
The relay illustrated in the figure operates based on non-inductive analog circuit theory. Its working principle involves a 220V power supply connected to a load (RL), resistors (R1, R3, R6), diodes (D1 to D8), and a zener diode (ZD1). Transistors...
Three Relays AC arc welding machine circuit
The relays in the AC arc welding machine manage the load through a three-way power circuit, as depicted in Figure 522. The selected relay type is KA, operating at 24V. Additionally, the time relay KT is of the JS7 model,...
Radio Buttons Using Push On Switch Latching Circuit
This is a switching circuit that provides a latching mechanism to create a set of radio buttons using push buttons. This circuit consists of an interlocking circuit.
The switching circuit operates on the principle of latching, allowing multiple push buttons to...
Logic level relay controller
The schematic below illustrates 4 methods of controlling a relay with a digital logic signal. Figure (A) can probably be used in most cases where the relay coil requires 100 mA or less and the input current is 2 milliamps...
water pump relay controller circuit schematic
This circuit utilizes a relay to control a water pump, enabling automatic level control for a water reservoir or well. The shorter steel rod acts as the "water high" sensor, while the longer rod serves as the "water low" sensor....
Delaying the release of DC relay circuit
To fulfill the requirements of a control loop, it is often necessary to utilize an electromagnetic relay or a transistor relay to either accelerate or delay an action, thereby forming an acceleration or delay circuit. The circuit depicted in Figure...
Beginners Guide AVR Programming
The project involves assembling a circuit that can be completed in 30 minutes. The required parts include: 1 circuit board, 1 Atmel AVR Atmega16 microcontroller, and 8 resistors with a value of 330 ohms each.
The schematic for this project outlines...
Microcontroller interfacing with RS 232
Standard serial interfacing of a microcontroller (TTL) with a PC or any RS232C standard device requires a TTL to RS232 level converter. A MAX232 is used for this purpose. It provides a 2-channel RS232C port and requires external 10µF capacitors.
The...