Help! Need ideas for a door opening circuit.
Updated: 2012-10-31 21:13:53
Hi there,
I am fabricating an automatic door opening design. It is basically a box with a 'wedged' cover that vertically lifts up and slides out...
New Lobster Mutation, This ones cool
Updated: 2012-10-31 21:04:25Check it out, this mutation is known as a split. As I've posted before the most common mutations are Blue being 1 out of 2 million, Callico 1 out of...5v power supply + battery overview
Updated: 2012-10-31 20:29:04Hi, I want to create a home-made power supply for a Raspberry pi + USB hub, I am looking for something along the lines of a 1.5-2A 5V regulated...Accelerometer
Updated: 2012-10-31 20:23:42Can someone please suggest an accelerometer to be used with a Campbell Scientific CR3000 Data Acquisition system. It will be used to measure vehicle...Suggestions/critique on 1MHz eddy/inductive prox. sensor.
Updated: 2012-10-31 20:23:02Hi everyone. Im studying mechatronics, and have a habit that every semester needs to have a electronics project, and my current project has blown...Voltage regulator and battery status output
Updated: 2012-10-31 20:21:08(Sorry if this gets posted more than once, I get a server error when I hit the submit button) Hi, I recently built a circuit to monitor a...Choosing the right type of micocontroller
Updated: 2012-10-31 18:04:21I want to build a closed loop control system that require ADC for six (6) LDRs and six (6) PWM output to control six DC lamps. To program it, I plan...Help finding correct component
Updated: 2012-10-31 17:24:36Hi, I am doing a project in which I am sending signals from an Arduino to an array of speakers and need a component which could act as a voltage...DC motors problem
Updated: 2012-10-31 16:48:55i found a simple schem of Line follower mobot using transistors.. the motors spin in the same direction(clockwise) when i build in Simulation.. ...Elenco ST-3030 adjusted the temperature reading (I fixed)
Updated: 2012-10-31 16:15:46This is a nice clamp on digital meter which reads DC and AC amps, temp, capacitance, volts, diode, etc... from Amazon was cheap. If you find the K...Infrastructure as antenna
Updated: 2012-10-31 15:22:17I'm ready to abandon my cable provider and install a TV antenna in hopes of getting free (almost) HD reception. I live on the sixth floor of a high...Experimentally determining the input impedence of an op amp
Updated: 2012-10-31 15:06:59Hello everyone, What should I do to determine the input impedence of an opamp? I want to find the input impedence of a noninverting amplifier and...