So,
der Vollständigkeit halber noch das Script, das nicht per HTTP den output schaltet, sondern lokal per API Call, was aus meiner Sicht effizienter und fehlerfreier ist.
Das Scipt ist von hier angepasst worden:
wurde ergänzt um die Abfrage auf 2 verschiedene Blu Buttons, Zeile 63-76.
und den Api call in Zeile 43.
Was ich noch gemerkt habe: die MAC-Adresse des Blu button muss KLEIN geschrieben werden. Keine Ahnung warum aber war so...
UND: Bluetooth RPC und Gateway ausschalten, auch hier fehlt mir das tiefere Verständnis, aber es tut...
Code
/**
* This script uses the BLE scan functionality in scripting
* Selects Shelly BLU Buttons from the aired advertisements, decodes
* the service data payload and toggles a relay on the device on
* button push
*/
// Shelly BLU devices:
// SBBT - Shelly BLU Button
// SBDW - Shelly BLU DoorWindow
// BTHome data format: https://bthome.io/format/
// sample Shelly DW service_data payload
// 0x40 0x00 0x4E 0x01 0x64 0x05 0x00 0x00 0x00 0x2D 0x01 0x3F 0x00 0x00
// First byte: BTHome device info, 0x40 - no encryption, BTHome v.2
// bit 0: “Encryption flag”
// bit 1-4: “Reserved for future use”
// bit 5-7: “BTHome Version”
// AD 0: PID, 0x00
// Value: 0x4E
// AD 1: Battery, 0x01
// Value, 100%
// AD 2: Illuminance, 0x05
// Value: 0
// AD 3: Window, 0x2D
// Value: true, open
// AD 4: Rotation, 0x3F
// Value: 0
// Device name can be obtained if an active scan is performed
// You can rely only on the address filtering and forego device name matching
// CHANGE HERE
function onButtonPress(BTHparsed) {
print("Button pressed, emitting event");
Shelly.call("Switch.Set", {id:0, on:true});
Shelly.emitEvent("BLU_BUTTON", {
addr: BTHparsed.addr,
rssi: BTHparsed.rssi,
Button: BTHparsed.Button,
Battery: BTHparsed.Battery,
});
}
// remove name prefix to not filter by device name
// remove address to not filter by address
// filtering early by address or device name allows for faster execution
// actions is an array objects containing condition and action property
// conditions would be checked for equality against the parsed advertisement packet
// e.g. if there is an addr property in condition and it matches the value of addr property
// in BTH parsed object then the condition is true
let CONFIG = {
shelly_blu_name_prefix: "SBBT",
//shelly_blu_address: "bc:02:6e:c3:c8:b9",
actions: [
{
cond: {
addr: "3c:2e:f5:f9:ff:13",
Button: 1,
},
action: onButtonPress,
},
{
cond: {
addr: "b4:35:22:fe:47:8a",
Button: 1,
},
action: onButtonPress,
},
],
};
// END OF CHANGE
let ALLTERCO_MFD_ID_STR = "0ba9";
let BTHOME_SVC_ID_STR = "fcd2";
let SCAN_DURATION = BLE.Scanner.INFINITE_SCAN;
let ACTIVE_SCAN =
typeof CONFIG.shelly_blu_name_prefix !== "undefined" &&
CONFIG.shelly_blu_name_prefix !== null;
let uint8 = 0;
let int8 = 1;
let uint16 = 2;
let int16 = 3;
let uint24 = 4;
let int24 = 5;
function getByteSize(type) {
if (type === uint8 || type === int8) return 1;
if (type === uint16 || type === int16) return 2;
if (type === uint24 || type === int24) return 3;
//impossible as advertisements are much smaller;
return 255;
}
let BTH = [];
BTH[0x00] = { n: "pid", t: uint8 };
BTH[0x01] = { n: "Battery", t: uint8, u: "%" };
BTH[0x05] = { n: "Illuminance", t: uint24, f: 0.01 };
BTH[0x1a] = { n: "Door", t: uint8 };
BTH[0x20] = { n: "Moisture", t: uint8 };
BTH[0x2d] = { n: "Window", t: uint8 };
BTH[0x3a] = { n: "Button", t: uint8 };
BTH[0x3f] = { n: "Rotation", t: int16, f: 0.1 };
let BTHomeDecoder = {
utoi: function (num, bitsz) {
let mask = 1 << (bitsz - 1);
return num & mask ? num - (1 << bitsz) : num;
},
getUInt8: function (buffer) {
return buffer.at(0);
},
getInt8: function (buffer) {
return this.utoi(this.getUInt8(buffer), 8);
},
getUInt16LE: function (buffer) {
return 0xffff & ((buffer.at(1) << 8) | buffer.at(0));
},
getInt16LE: function (buffer) {
return this.utoi(this.getUInt16LE(buffer), 16);
},
getUInt24LE: function (buffer) {
return (
0x00ffffff & ((buffer.at(2) << 16) | (buffer.at(1) << 8) | buffer.at(0))
);
},
getInt24LE: function (buffer) {
return this.utoi(this.getUInt24LE(buffer), 24);
},
getBufValue: function (type, buffer) {
if (buffer.length < getByteSize(type)) return null;
let res = null;
if (type === uint8) res = this.getUInt8(buffer);
if (type === int8) res = this.getInt8(buffer);
if (type === uint16) res = this.getUInt16LE(buffer);
if (type === int16) res = this.getInt16LE(buffer);
if (type === uint24) res = this.getUInt24LE(buffer);
if (type === int24) res = this.getInt24LE(buffer);
return res;
},
unpack: function (buffer) {
// beacons might not provide BTH service data
if (typeof buffer !== "string" || buffer.length === 0) return null;
let result = {};
let _dib = buffer.at(0);
result["encryption"] = _dib & 0x1 ? true : false;
result["BTHome_version"] = _dib >> 5;
if (result["BTHome_version"] !== 2) return null;
//Can not handle encrypted data
if (result["encryption"]) return result;
buffer = buffer.slice(1);
let _bth;
let _value;
while (buffer.length > 0) {
_bth = BTH[buffer.at(0)];
if (typeof _bth === "undefined") {
console.log("BTH: unknown type");
break;
}
buffer = buffer.slice(1);
_value = this.getBufValue(_bth.t, buffer);
if (_value === null) break;
if (typeof _bth.f !== "undefined") _value = _value * _bth.f;
result[_bth.n] = _value;
buffer = buffer.slice(getByteSize(_bth.t));
}
return result;
},
};
let ShellyBLUParser = {
getData: function (res) {
let result = BTHomeDecoder.unpack(res.service_data[BTHOME_SVC_ID_STR]);
result.addr = res.addr;
result.rssi = res.rssi;
return result;
},
};
let last_packet_id = 0x100;
function scanCB(ev, res) {
if (ev !== BLE.Scanner.SCAN_RESULT) return;
// skip if there is no service_data member
if (
typeof res.service_data === "undefined" ||
typeof res.service_data[BTHOME_SVC_ID_STR] === "undefined"
)
return;
// skip if we are looking for name match but don't have active scan as we don't have name
if (
typeof CONFIG.shelly_blu_name_prefix !== "undefined" &&
(typeof res.local_name === "undefined" ||
res.local_name.indexOf(CONFIG.shelly_blu_name_prefix) !== 0)
)
return;
// skip if we don't have address match
if (
typeof CONFIG.shelly_blu_address !== "undefined" &&
CONFIG.shelly_blu_address !== res.addr
)
return;
let BTHparsed = ShellyBLUParser.getData(res);
// skip if parsing failed
if (BTHparsed === null) {
console.log("Failed to parse BTH data");
return;
}
// skip, we are deduping results
if (last_packet_id === BTHparsed.pid) return;
last_packet_id = BTHparsed.pid;
console.log("Shelly BTH packet: ", JSON.stringify(BTHparsed));
// execute actions from CONFIG
let aIdx = null;
for (aIdx in CONFIG.actions) {
// skip if no condition defined
if (typeof CONFIG.actions[aIdx]["cond"] === "undefined") continue;
let cond = CONFIG.actions[aIdx]["cond"];
let cIdx = null;
let run = true;
for (cIdx in cond) {
if (typeof BTHparsed[cIdx] === "undefined") run = false;
if (BTHparsed[cIdx] !== cond[cIdx]) run = false;
}
// if all conditions evaluated to true then execute
if (run) CONFIG.actions[aIdx]["action"](BTHparsed);
}
}
// retry several times to start the scanner if script was started before
// BLE infrastructure was up in the Shelly
function startBLEScan() {
let bleScanSuccess = BLE.Scanner.Start({ duration_ms: SCAN_DURATION, active: ACTIVE_SCAN }, scanCB);
if( bleScanSuccess === false ) {
Timer.set(1000, false, startBLEScan);
} else {
console.log('Success: BLU button scanner running');
}
}
//Check for BLE config and print a message if BLE is not enabled on the device
let BLEConfig = Shelly.getComponentConfig('ble');
if(BLEConfig.enable === false) {
console.log('Error: BLE not enabled');
} else {
Timer.set(1000, false, startBLEScan);
}
