1kill2steal/counting-blinks

An arduino_hal (hardware abstraction layer) tool using the Arduino Nano that counts in binary using the LEDs.

Counting blinks

Rust project for the Arduino Nano that implements binary counting with LEDs.

Prerequisites

Arduino nano.

USB type A (or whatever type your sender accepts) to Micro USB or USB type C (depending on your Arduino Nano variant)

A breadboard (at least from a1-j30 which should be the smallest one).

4 jumper wires (male to male).

3 resistors (I'm using metal film blue ones).

3 LED diodes (the colors don't matter).

Example Board Layout

Arduino from d30 to j16.

Jumper cable at GND (in this case: d19 or j17) to negative column at the j column side.

3 Jumper cables:

• d30-a1 (pin.d12)
• d29-a5 (pin.d11)
• d28-a9 (pin.d10)

3 Resistors:

• b1-i9
• b5-i5
• b9-j9

Some vocabulary for the LEDs:

• Anode - the long end (positive charged): the part where oxidization happens.
• Cathode - the short part (negative charged): the part where reduction happens.

3 LEDs:

• Anode: j1 | Cathode: at the negative column
• Anode: j5 | Cathode: at the negative column
• Anode: j9 | Cathode: at the negative column

Note

The position of the cathodes on the negative column doesn't matter as long as they're on the column where the GND jump wire is connected.

For reference, it should look something similar to the following:

Code Build Instructions

1. Install prerequisites as described in the avr-hal README (avr-gcc, avr-libc, avrdude, ravedude).

2. Run cargo build to build the firmware.

3. Run cargo run to flash the firmware to a connected board. If ravedude fails to detect your board, check its documentation at https://crates.io/crates/ravedude.

4. ravedude will open a console session after flashing where you can interact with the UART console of your board.

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

At your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.