Nice bunch of fresh AT89 projects
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Talking Yoda head
The talking Yoda head consists of a Yoda mask and a microcontroller system to achieve the desired operation/effect. The basic operation of the project was specified as follows: The head was to be placed inside a closed box. Upon opening...
Microcontroller Voltmeter / Ammeter with LCD
The rectifier bridge voltage is determined by the U2 element; refer to its datasheet for the maximum voltage specifications. The minimum voltage at this pin should not fall below approximately 9V, or 6.5V if low-dropout type U2 and U3 voltage...
analog light dimmer circuit connected to microcontroller
Assistance is required to modify a light dimmer circuit connected to a PIC12C508 microcontroller. This circuit is designed for the...
The light dimmer circuit utilizing the PIC12C508 microcontroller serves to control the brightness of a light source through pulse width modulation...
DC motor driver for DCMP(AVR-008)
A microcontroller is used to control various types of DC motors, including permanent magnet DC motors, DC servo motors, and stepper motors. This project utilizes the AVR-008 microcontroller from Circuits-Home, which is frequently referred to as the 3-in-1 driver motor...
Microcontroller-based automatic night light circuit
While discussing an all-linear automatic night light circuit, it was mentioned that an MCU-based Automatic Night Light Controller (ANLC) was being tested. The firmware has been tweaked since then. Recently, the sensor was installed outdoors and connected to control 220VAC...
DIAL ALARM-1
This is the lowest cost dialing alarm on the market and shows what can be done with an 8-pin microcontroller. The complete circuit is shown below. You cannot see all the features of this project by looking at the circuit...
DIAL ALARM-1
This is the lowest cost dialing alarm on the market and shows what can be done with an 8-pin microcontroller. The complete circuit is shown below. You cannot see all the features of this project by looking at the circuit...
High Resolution Digital Weigh-scale Design Using Z8 Encore! ?® Microcontrollers
The SP6691 circuit is designed to provide a high output voltage using a lower voltage boost regulator by incorporating a charge pump circuit. This configuration can convert a standard 30V boost regulator into a 60V boost regulator if necessary. Testing...
10 or more switches using a microcontroller
There are several methods to read multiple switch inputs using a reduced number of microcontroller unit (MCU) pins. One approach involves using an analog MCU pin to read multiple switches by assigning a unique voltage to each switch through a...