How do I control the EPM with Arduino? With logic of servo servo.write() functions dont do much Help

pavel-kirienko · March 5, 2019, 4:07pm

One or several pulses are enough to trigger the magnet; it is not necessary (and is, in fact, not recommended) to keep the signal at the high level continuously because that would cause the magnet to remagnetize repeatedly.

Concerning your other questions, I believe it’s best to consult with the firmware:

github.com

Zubax/opengrab_epm_v3/blob/master/firmware/src/main.cpp

/*
 * OpenGrab EPM - Electropermanent Magnet
 * Copyright (C) 2015  Zubax Robotics <info@zubax.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Author: Pavel Kirienko <pavel.kirienko@zubax.com>
 *         Andreas Jochum <andreas@nicadrone.com>
 */

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