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Investigation.md

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Notes

These are the findings from decompiling the app source code and looking at other packages like sous-vide on npm

Node.js notes

Bluetooth

Use @abandonware/noble as noble is no longer supported

NPM packages

t.LongBits = require('./556'); https://protobufjs.github.io/protobuf.js/util.LongBits.html

Supported Commands

  START
  STOP
  GET_SENSORS_VALUES
  READ_TARGET_TEMP
  READ_UNIT
  READ_TIMER
  GET_FIRMWARE_INFO
  SET_UNIT
  SET_TEMP
  SET_TIMER

Anova Command notes

563.js contains device constats for Anova Nano 564.js contains functions to send commands to device

exports.default = {
  serviceUUID: '0e140000-0af1-4582-a242-773e63054c68',
  txCharacteristicUUID: '0e140001-0af1-4582-a242-773e63054c68',
  rxCharacteristicUUID: '0e140002-0af1-4582-a242-773e63054c68',
  asyncCharacteristicUUID: '0e140003-0af1-4582-a242-773e63054c68',
  targetTemperatureScale: 10,
  temperatureScale: 100,
  sensorTemperatureScale: 1,
};

The characteristics match from the Noble output logs

{
  characteristic: 'txCharacteristicUUID'
  uuid: '0e1400010af14582a242773e63054c68', 
  properties: [ 'write' ] 
},
{
  characteristic: 'rxCharacteristicUUID'
  uuid: '0e1400020af14582a242773e63054c68',
  properties: [ 'notify' ]
},
{
  characteristic: 'asyncCharacteristicUUID'
  uuid: '0e1400030af14582a242773e63054c68',
  properties: [ 'notify' ]
}

Nano Device UUID is

C060D1CD-3923-4E04-8702-F9FEBF875DA4

or

c060d1cd39234e048702f9febf875da4

498.js contains bluetooth events

exports.BleEvents = {
  DidUpdateValueForCharacteristic: 'BleManagerDidUpdateValueForCharacteristic',
  DidUpdateState: 'BleManagerDidUpdateState',
  DidStopScanning: 'BleManagerStopScan',
  PeripheralDiscovered: 'BleManagerDiscoverPeripheral',
  PeripheralConnected: 'BleManagerConnectPeripheral',
  PeripheralDisconnected: 'BleManagerDisconnectPeripheral',
};

540.js contains commands

541.js

Old Anova

Command used by Anova original (used in npm sous-vide) in 506.js

            return regeneratorRuntime.default.awrap(
              module497.default.writeWithoutResponse(t, module508.default.serviceUUID, module508.default.rxTxCharacteristicUUID, module22, 20, 200)
            );

Where module22 (data) is

module22 = p(n);

And

var p = function (t) {
  n = `${t}\r`;
  return module22.default(n).map((t) => t.charCodeAt(0));
  let n;
};

Call in 502.js where module14 is module14 = l.peripheralID;

return module507.sendDeviceCommand(module14, module509.COMMANDS.READ_UNIT);

Commands in 509.js

exports.COMMANDS = {
  START: 'start',
  STOP: 'stop',
  READ_TARGET_TEMP: 'read set temp',
  READ_TEMP: 'read temp',
  READ_UNIT: 'read unit',
  READ_TIMER: 'read timer',
  START_TIMER: 'start time',
  STOP_TIMER: 'stop time',
  CLEAR_ALARM: 'clear alarm',
  GET_COOKER_ID: 'get id card',
  STATUS: 'status',
  FIRMWARE_VERSION: 'version',
  SMARTLINK_START: 'smartlink start',
  SEND_SERVER_ADDRESS: 'server para pc.anovaculinary.com 8080',
  SET_TIMER(t) {
    return `set timer ${t}`;
  },
  SET_UNIT(t) {
    return `set unit ${t.toLowerCase()}`;
  },
  SET_TEMP(t) {
    return `set temp ${t}`;
  },
  SET_WIFI_CREDS(t, E) {
    return `wifi para 2 ${t} ${E} WPA2PSK AES`;
  },
  SET_COOKER_SECRET(t) {
    return `set number ${t}`;
  },
  SET_SPEAKER(t) {
    return `set speaker ${t}`;
  },
};

Command used by Anova Nano (564.js)

            return regeneratorRuntime.default.awrap(module497.default.write(t, module563.default.serviceUUID, module563.default.txCharacteristicUUID, module565, 20));

Command used in 540.js where t = o.peripheralID;

return module564.sendDeviceCommand(t, module541.COMMANDS.READ_UNIT);