Show full PR text Olympia Circuits announces the Arno Shield Olympia, WA, April 29, 2013– Olympia Circuits introduces the Arno Shield to expand their line of products for new Arduino users.

Arduino Uno or any other compatible board Stepper motor (correct torque) Stepper motor driver (with dir, step and enable pins, not H bridge) Magnetic on/off switch (to detect if the frame window is ...

Olympia Circuits Teases Arduino Programmers With $60 Arno Shield by Ray Willington — Monday, April 29, 2013, 05:50 PM EDT Comments ...

The circuit on the left can interface with any one of those, plus any 5V logic signal if a dc voltage of 5, 12 or 24V is also available. 16mA has been chosen for the led current to match the drive ...

The opto isolator, isolates the mains/line voltage from the Raspberry Pi and is the safest way to detect AC voltage using a Raspberry Pi since the Pi is never in contact with the high AC voltage. The ...

The PWM pulses generated by an Arduino microcontroller is fed to the gate terminals of the MOSFET switches of dual-channel DC drive through driver and opto isolator circuits.The duty cycle of the ...

PCB Direct Virtual Breadboard Creates Circuits For Arduino, RasPI, ARM And More 9:54 am January 12, 2015 By Julian Horsey ...

The machine uses a ‘grbl’ controller, which has an Arduino-based circuit that includes multiple outputs, including a powerful 24V pwm signal that is generally used to drive a 60-80W spindle motor.