- Firmware
- Refactor all code to use a log interface rather than `Serial` directly
- Moved platformio.ini to root, so you can load the entire repo in VS Code and still use platformio
- Reduced graphic buffer bit depth to 8 bits (short on RAM :( )
- Implemented threadsafe log interface in interface_task (using a queue for posting log message)
- Created serial protocol interface and 2 implementations - plaintext (default) and protobuf (selected by sending a NULL byte)
- Protobuf protocol is roughly the same architecture as Splitflap's:
- PacketSerial (cobs) framing with NULL delimiters
- CRC32 checksums for packets
- nanopb generated code for encoding/decoding (generated firmware code is checked in, since it should change less frequently and this reduces burden to build the project from scratch)
- Software
- Typescript example host-side code:
- smartknobjs-proto
- Autogenerated types/encoding/decoding protobuf code (using protobufjs)
- smartknobjs
- Helper library for interfacing the with smartknob via serial/protobuf. Implements basic outgoing queue (with retries and ACK checking) and message callback for responding to messages from the SmartKnob
- example
- Basic demo CLI app that uses smartknobjs to connect to the smartknob, send a haptic config, and print state changes and log messages to the console