Recent content by goom

Maybe I'm missing something, but would it not make sense to send the servo command pulses to each servo from a single Picaxe output pin? Assuming that the 2 servos are identical, and have the same linkage geometry, then they should move both crossing gates in synchrony.

It looks like the problem is that you have used a period "." instead of a comma "," as a separator in both sertxd commands.

Some hobby servos are set up for multiple rotations (typicall 4 to 6 turns). They are aimed primarily at sail sheeting control for model sailboats. Since they have internal position feedback, just like a regular hobby servo, the output shaft will rotate to a fixed and repeatable position with...

See the following link https://sawmillcreek.org/showthread.php?261005-An-inexpensive-dust-bucket-saw-dust-level-sensor-new-cheaper-parts

I suspect that these are mislabeled as being 12V, and are more likely designed for 5V. They look like "regular" white LED's with a resistor in parallel buried in the heat shrink tubing. The facts that you measured 200mA at 12V, the specified current is 20mA and the resistor gets very hot...

Yes, vibration detectors are freely available. I just thought that it would be a simple "quick and dirty" means of testing whether monitoring sound board vibrations is a viable technique for detecting hammer strikes (assuming that you have access to a record player). Furthermore it would be...

Just an "off the wall" idea for sound detection - a gramophone cartridge. If you had a complete record player, just resting the tone arm on the soundboard would be an easy way to test. Pre-amp and power amp are all built in so you could simply listen to the sound or measure the output at the...

What about something like this? https://www.robotshop.com/ca/en/gravity-flexible-piezo-film-vibration-sensor.html?gclid=Cj0KCQiAmuHhBRD0ARIsAFWyPwiuHO2x_GGwt7isZXJ_9K3QpM-2VmHFllxbKvRZ3YYAvBxBBMipzD0aAhtDEALw_wcB

In line 74 you have incorrectly spelled "Interrupt". You have an extra "r".

My previously posted code is probably quite simiar to that written by Alan Bond. He has even used the same technique of jumpers to select latching or non-latching operation. My design differs mainly in being 2 channel, not using an input pulse buffer and having the thresholds set in code rather...

Here are the two circuits that I have used in the (distant) past.

I decided to look into the SOMO-14D Embedded Audio-Sound Module as an alternative to the ISD2560 sound recorder chip, which I have used successfully in the past for a sailboat race countdown start timer. It may also prove to be a useful unit for model sound effects, commanded by a spare RC...

This project takes a signal from a hobby RC radio receiver, manipulates the signal, then outputs to a servo. The user can set up the following by pressing a button on the board: Neutral position Maximum travel Minimum travel Failsafe position I use it to extend servo travel by up to 180° for use...

In the process of designing a device to increase the travel of a hobby servo, I discovered that the servo and pulsout commands do not seem to give the same position information to the servo. I would have expected the following examples to give the same result: for b2=0 to 150 pulsout 1,200...

How about using a Maxim 8212. Just 3 resistors to set the voltage thresholds which switch an output on and off. Just add a MOSFET for driving something. Sorry Forum, no PICAXE required, unless the 8212 output is used as a PICAXE input. See attached picture for a solar engine application.