Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

Infrared based Smart-board

This project is for professors who uses both a projector as well as a board simultaneously to teach. This device will help you to substitute both your boards into a single board. As the name suggest it’s controlled by infrared sensors to detect the movement of an IR led to control the remote laptop. In the whiteboard mode, the user can interact with a projected image to do things like scrolling, changing the image while in the blackboard mode the user will be able to write on a blackboard and have the IR camera trace the movements and draw it on paint and save the images The IR camera used is from the WII remote which is quite potable but still provides HD resolution and can track up to 4IR… Continue reading

Push-Up trainer

This project is for people who really like to hit the gym frequently but it can also be made by people who are beginners. This is basically a push-up trainer which trains you to do certain amount of push-ups and provide feedback to improve their body health. It comprises of three modes, each having different number of sets and push-ups required for each-set. Moreover, there is also a record-beating mode which allows you to compete with your previous record for number of push-ups made. The microcontroller used for this project is Atmel Atmega 1284p, which is interfaced to a touch screen system and the sensor system along. An analog distance meter is used to measure whether the back of body is low enough when doing push-up. The sensor will use… Continue reading

Running-Band

This project involves band that can be attached to your upper arm which will help you monitor your running habits by providing temperature and vibration feedback. The band produces a cold sensation when the user is not moving fast enough. The band vibrates if the user continues to be slow. An accelerometer is used to count the steps taken per interval. It also consists of two SPDT switches to switch on/off the device and to set the required foot step rate. The band runs from an Atmel ATmega1284P microcontroller, a Peltier Plate, vibration motor, and various control circuits. The accelerometer reading is fed to the controller which determines whether the user has taken a step or not. Based on the present and the previous reading, the step per interval is… Continue reading

Self-stabilizing Camera Platform

A self-stabilizing camera can be used to keep your camera at the required level, irrespective of user movement. This can be used by filmmakers to capture steady shots without any noise due to motion.  It comprises of two high torque servo to control the movements in all planes. Along with servos, it has a gyroscope and accelerometer to detect the camera movement and hence act as a feedback system. The accelerometer and gyroscope are used to determine the roll and pitch of the wooden platform on which the camera has to be mounted. Once the sensors detect a disturbance in the position of the platform, the required data is send to the microcontroller in order to correct the error A complimentary filter is used to eliminate noise from the sensor… Continue reading

Self-Made Laser Tag

We all have played the laser tag game at various fest or amusement parks. This laser tag is suitable for two player but can be easily extended to more number of players. Another advantage of this system is that in place of conventional infrared light used in commercial system, real lasers are used. In simpler terms it comprises of a laser blaster, base station, and shot detection vest. Every blaster comprises of an RF transceiver, an LCD, a sensor, and a laser. The laser is used to fire at other players on the press of a button. A RF transceiver is also used to send and receive any information about the game. Each blaster is also equipped with a photo-transistor to determine if the blaster itself has been hit by… Continue reading

Sound based Data Transmission

DTMF have been used to transfer data through sound, however it limits the data rates. In this project they have used a speaker and a microphone system to transmit the data generated. The data is generated using a PS/2 remote which is then processed by the microcontroller and the audio signal is fed to a speaker. The sound is detected by the microphone attached on the user side which is then processed and displayed on the LCD attached to the receiver side. The TX-MCU samples DATA on the falling edge of CLK to build a data packet representing the key that was pressed, then transmits the packet as a combination of two alternating on/off tones (one at 8 kHz, another at 5 kHz) over the speakers, where one tone represents… Continue reading