Circuit Lake

The project goal is to built low cost TV Superimposers based on ATmega88 and ATmega48. The device allows you to display numerical data, such as temperature values, or characteristic data, such as short comments about the video feed along with real-time images from a camera. The project is composed of 2 PCB boards, VSP main board and Communication board.VSP main board NMJ2207 extracts a composite sync signal from the entered video signal. It inputs this composite-signal to the INT0 interrupt port of ATmega88(20MHz). The INT0 interrupt handler of ATmega88 chooses a ...

The Station Master is a small key ring sized alarm that uses an accelerometer to track your movement. The device will gently vibrate and let you know when you've reached your stop and it’s time to disembark from the train. Using a simple one button interface the user can set an alarm for the right number of stops and then be reminded when its time to get off.Nick Lott, the project designer, uses MCU AVR ATtiny13 as main processor, An MMA7260 3-Axis Accelerometer to monitor the tilt and movement of ...

IR Widget is PIC12F629-based project that able to captures infrared signals from remote controls. It allow you to determine the carrier frequency and demodulate the carrier in the digital or analog domain. The captured information can be used to view, recognize or reproduce the signal. The hardware is simple and low cost.PC based software is used to display IR data from the IR Widget in a graphical representation. The display is similar to an oscilloscope or logic analyzer. The time of each carrier on and off period is shown as ...

This project shows you how to construct a PCB drill machine driven by a master-controller board and three stepper motor driver boards. These four single sided PC boards each contain an Atmega16/32 microcontroller. Communication between the boards is performed using the RS485 protocol with all communication initiated by the master-controller. The PCB drill machine firmware is completely written in Bascom-AVR.A stepper motor driver-board is an autonomic device. It gets a command from the master-controller-board and it takes care of the stepper motor motion, error-detection and error-correction. The initiative of communication ...