Author: Rend

This is video about acceleration sensors for medical applications. Accelerometer is one of acceleration sensor that usually used in medical application. An accelerometer has six sensing function. The sensing functions of accelerometer are shock, tilt, vibration, motion, position and free fall. This video focus on three areas, preventive method or preventive care, medical equipment in general and rehabilitation. Here is […]

This is a video about blood glucose meter with blood pressure monitor. This device has two functions, blood pressure monitor and blood glucose meter. This is really low power device but has a good performance. The features of this device are LCD display, USB connectivity, and card reader that allow transfer data to mobile phone, remote desktop or PC. Beside […]

Sometimes night vision is needed to see in the dark. This video is about a simple night vision that can be used to see in the dark. The night vision is made of Super bright LED, LED, a viewfinder, box, switch and jack. This night vision draw 9V of the power from battery. The super bright LED is built in […]

A laser beam is a interesting stuff that can be used in many project. One of the project is a simple laser communicator that is used to transmit the voice across the room. To build a simple laser communicator, we need audio output transformer, solar cell, small amplifier, radio battery pack and regular laser pointer. First, build the battery packet. […]

This is how to make crystal radio part two. This video explain how to assemble a crystal radio in ten minutes. This radio utilizes a different material from different manufacture. This radio use the internal part of radio. Then it is connected to the tuning coil. This part is build from the coil and ferrite and also tuner. The antenna […]

Crystal radio is a simple radio receiver that need no power source. It receives power from radio wave. This video shows how to make a crystal radio. This is first part that explains the parts of crystal radio. The parts of the crystal radio are the crystal, crystal earphone, coil, antenna, and earthing wire. The crystal is used to draw […]