An Arduino/Bluefruit Micro button and status light designed for triggering an action with the tap of a large button and receiving feedback.

There are seven states the button can be in, and 1 action that can be performed.

When the button is not connected to a listener via Bluetooth LE, it will be red and cycle a magenta cursor. It will not respond to presses during this state.

When the button connects to a listener via Bluetooth LE, it will temporarily pulse blue and then switch to the UNKNOWN state (a rainbow cycle).

Once the button is pressed, the cursor will circle the button so the user sees their action has been registered. The overall color will remain what it previously was as of the last known state sent from the listener.

When the listener responds with the state of GOOD, the button will fade to green from the previous color.

When the listener responds with the state of WARN, the button will fade to amber from the previous color.

When the listener responds with the state of ERROR, the button will fade to red from the previous color.

When the listener responds with an UNKNOWN state, the button will cycle a rainbow.

There is currently only one action that can be performed by the button, pressing it. Multiple presses will send multiple press events to the listener, it is up to the listener to ignore presses if an action is currently pending.

TODO: Diagram and instructions to come

Use the Arduino Development Environment to upload deploy_button.ino

The button connects to a listener via Bluetooth LE using a UART TX and RX service.

The button will send the characters GO when it is pressed.

The button listens to the RX characteristic for single ASCII characters representing the numeric state it should display. For example, if an ASCII '2' (not the hex value 0x02) is sent over UART RX, the button will turn green (for the GOOD state.) A full list of possible states and their number value are #define-ed in deploy_button.ino