Please consider supporting this project financially. More information below.
Allows you to control a stepper motor from your PC via a CLI app that sends commands to a firmware application running on an LPC845-BRK development board.
The firmware application uses the Stepper library to control the motor. It is intended to serve as a testbed and usage example for Stepper. This project and Stepper are part of Flott, an open source toolkit for motion control software in Rust.
This project is usable, but doesn't yet expose all of the features of Stepper. Check out the list of issues for some documented limitations. Help in filling the gaps is very welcome!
You need the following hardware:
- Full-size breadboard
- LPC845-BRK development board
- STSPIN220 Stepper Motor Driver Carrier
- Matching stepper motor (example)
- Power supply (1.8V - 10V, depending on the motor)
- Jumper wires to make the connections
Then make the following connections:
| LPC845-BRK | STSPIN220 | Motor | Power |
|---|---|---|---|
| 1 - PIO0_16 | STBY | ||
| 2 - PIO0_17 | MODE1 | ||
| 3 - PIO0_18 | MODE2 | ||
| 4 - PIO0_19 | STEP/MODE3 | ||
| 5 - PIO0_20 | DIR/MODE4 | ||
| 20 - GND | GND | ||
| 50 - VDD | VCC | ||
| A1 | A1 | ||
| A2 | A2 | ||
| B2 | B2 | ||
| B1 | B1 | ||
| GND | - | ||
| VMOT | + |
From the repository root, execute:
cd firmware
cargo embedAssuming you have cargo-embed installed, and an LPC845-BRK is connected via USB, this should flash and run the firmware, as well as open an RTT terminal with some log output.
From the repository root, execute:
cd cli
cargo run -- move-to 2000This should move the motor by 2000 steps, using a nice acceleration ramp. Please note that the argument specifies an absolute position, so executing the same command again will not result in any movement (the motor already is at step 2000).
You can learn more about the command-line interface using --help:
cargo run -- --helpYou can also use --help on specific subcommands:
cargo run -- move-to --helpIf you're getting value out of this project, Stepper or other libraries from the Flott toolkit, please consider supporting us financially. Your sponsorship helps to keep the project healthy and moving forward.
Hanno Braun, maintainer and original creator of this application, is accepting sponsorship.
This project is open source software, licensed under the terms of the Zero Clause BSD License (0BSD, for short). This basically means you can do anything with the software, without any restrictions, but you can't hold the authors liable for problems.
See LICENSE.md for full details.