uniapp 实现与esp32 c3 BLUFI蓝牙数据传输

2301_78029091

994人浏览 · 2024-05-07 17:59:09

2301_78029091 · 2024-05-07 17:59:09 发布

首先会用到一个工具util.js如下,记得在使用时引入

const FRAME_CTRL_POSITION_ENCRYPTED = 0;
const FRAME_CTRL_POSITION_CHECKSUM = 1;
const FRAME_CTRL_POSITION_DATA_DIRECTION = 2;
const FRAME_CTRL_POSITION_REQUIRE_ACK = 3;
const FRAME_CTRL_POSITION_FRAG = 4;
const DIRECTION_OUTPUT = 0;
const DIRECTION_INPUT = 1;
const AES_BASE_IV = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
const NEG_SET_SEC_TOTAL_LEN = 0x00;
const NEG_SET_SEC_ALL_DATA = 0x01;
const PACKAGE_VALUE = 0x01;
const SUBTYPE_NEG = 0x00;
const SUBTYPE_WIFI_MODEl = 0x02;
const SUBTYPE_END = 0x03;
const PACKAGE_CONTROL_VALUE = 0x00;
const SUBTYPE_WIFI_NEG = 0x09;
const SUBTYPE_SET_SSID = 0x2;
const SUBTYPE_SET_PWD = 0x3;
const SUBTYPE_WIFI_LIST_NEG = 17;
const SUBTYPE_NEGOTIATION_NEG = 0;
const SUBTYPE_CUSTOM_DATA = 0x13;
var DH_P =
	"cf5cf5c38419a724957ff5dd323b9c45c3cdd261eb740f69aa94b8bb1a5c96409153bd76b24222d03274e4725a5406092e9e82e9135c643cae98132b0d95f7d65347c68afc1e677da90e51bbab5f5cf429c291b4ba39c6b2dc5e8c7231e46aa7728e87664532cdf547be20c9a3fa8342be6e34371a27c06f7dc0edddd2f86373";
var DH_G = "02";
const descSucList = ["蓝牙连接...", "蓝牙连接成功", "设备信息已成功获取", "属性信息已成功获取", "发送配置信息...", "成功发送配置信息", "成功连接"];
const descFailList = ["蓝牙连接失败", "设备信息获取失败", "属性信息获取失败", "配置信息发送失败", "网络配置失败", "蓝牙异常断开"];
const successList = {
	"0": "NULL",
	"1": "STA",
	"2": "SoftAP",
	"3": "SoftAP & STA"
};
const failList = {
	"0": "sequence error",
	"1": "checksum error",
	"2": "decrypt error",
	"3": "encrypt error",
	"4": "init security error",
	"5": "dh malloc error",
	"6": "dh param error",
	"7": "read param error",
	"8": "make public error"
};
var CRC_TB = [
	0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad,
	0xe1ce, 0xf1ef,
	0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c,
	0xf3ff, 0xe3de,
	0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf,
	0xc5ac, 0xd58d,
	0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4, 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe,
	0xd79d, 0xc7bc,
	0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823, 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969,
	0xa90a, 0xb92b,
	0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58,
	0xbb3b, 0xab1a,
	0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b,
	0x8d68, 0x9d49,
	0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a,
	0x9f59, 0x8f78,
	0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025,
	0x7046, 0x6067,
	0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214,
	0x6277, 0x7256,
	0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447,
	0x5424, 0x4405,
	0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c, 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676,
	0x4615, 0x5634,
	0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab, 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1,
	0x3882, 0x28a3,
	0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0,
	0x2ab3, 0x3a92,
	0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83,
	0x1ce0, 0x0cc1,
	0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2,
	0x0ed1, 0x1ef0
];
//转16进制
const ab2hex = buffer => {
	var hexArr = Array.prototype.map.call(new Uint8Array(buffer), function(bit) {
		return ('00' + bit.toString(16)).slice(-2)
	})
	return hexArr;
}
//16进制转字符串
const hexCharCodeToStr = hexCharCodeStr => {
	var trimedStr = hexCharCodeStr.trim();
	var rawStr = trimedStr.substr(0, 2).toLowerCase() === "0x" ? trimedStr.substr(2) : trimedStr;
	var len = rawStr.length;
	if (len % 2 !== 0) {
		alert("Illegal Format ASCII Code!");
		return "";
	}
	var curCharCode;
	var resultStr = [];
	for (var i = 0; i < len; i = i + 2) {
		curCharCode = parseInt(rawStr.substr(i, 2), 16); // ASCII Code Value
		resultStr.push(String.fromCharCode(curCharCode));
	}
	return resultStr.join("");
}
//过滤名称
const filterDevice = (devices, filterName) => {
	var self = this,
		list = [];
	for (var i = 0; i < devices.length; i++) {
		var device = devices[i];
		var re = new RegExp("^(" + filterName + ")");
		if (re.test(device["name"])) {
			list.push(device);
		}
	}
	return list;
}
//获去type
const getType = (pkgType, subType) => {
	return (subType << 2) | pkgType;
}
//unit8Arry转数组
const uint8ArrayToArray = uint8Array => {
	var array = [];
	for (var i = 0; i < uint8Array.byteLength; i++) {
		array[i] = uint8Array[i];
	}
	return array;
}
//16进制转二进制数组
const hexToBinArray = str => {
	var dec = parseInt(str, 16),
		bin = dec.toString(2),
		len = bin.length;
	if (len < 8) {
		var diff = 8 - len,
			zeros = "";
		for (var i = 0; i < diff; i++) {
			zeros += "0";
		}
		bin = zeros + bin;
	}
	return bin.split("");
}
//16进制转数组
const hexByArray = str => {
	var arr = [];
	if (str.length % 2 != 0) {
		str = "0" + str;
	}
	for (var i = 0; i < str.length; i += 2) {
		arr.push(str.substring(i, i + 2))
	}
	return arr;
}
//16进制转整形数组
const hexByInt = str => {
	var arr = [];
	if (str.length % 2 != 0) {
		str = "0" + str;
	}
	for (var i = 0; i < str.length; i += 2) {
		arr.push(parseInt(str.substring(i, i + 2), 16))
	}
	return arr;
}
//排序
const sortBy = (attr, rev) => {
	//第二个参数没有传递 默认升序排列
	if (rev == undefined) {
		rev = 1;
	} else {
		rev = (rev) ? 1 : -1;
	}
	return function(a, b) {
		a = a[attr];
		b = b[attr];
		if (a < b) {
			return rev * -1;
		} else if (a > b) {
			return rev * 1;
		}
		return 0;
	}
}
//判断非空
const _isEmpty = str => {
	if (str === "" || str === null || str === undefined || str === "null" || str === "undefined") {
		return true;
	} else {
		return false;
	}
}
//组装数据格式
const writeData = (type, subType, frameCtl, seq, len, data) => {
	var value = [],
		type = getType(type, subType);
	value.push(type);
	value.push(frameCtl);
	value.push(seq);
	value.push(len);
	if (!_isEmpty(data)) {
		value = value.concat(data);
	}
	return value;
}

//是否分包
const isSubcontractor = (data, checksum, sequence, encrypt) => {
	var len = 0,
		lenData = [],
		laveData = [],
		flag = false;
	var total = data.length;
	if (total > 16) {
		if (checksum) {
			lenData = data.slice(0, 12);
			laveData = data.slice(12);
		} else {
			lenData = data.slice(0, 14);
			laveData = data.slice(14);
		}
		var len1 = (total >> 8) & 0xff;
		var len2 = total & 0xff;
		lenData.splice(0, 0, len1);
		lenData.splice(0, 0, len2);
		len = lenData.length;
		flag = true;
	} else {
		lenData = data;
		len = lenData.length;
	}
	if (checksum) {
		lenData = assemblyChecksum(lenData, len, sequence);
	}
	return {
		"len": len,
		"lenData": lenData,
		"laveData": laveData,
		"flag": flag
	}
}
const assemblyChecksum = (list, len, sequence) => {
	var checkData = [];
	checkData.push(sequence);
	checkData.push(len);
	checkData = checkData.concat(list);
	var crc = caluCRC(0, checkData);
	var checksumByte1 = crc & 0xff;
	var checksumByte2 = (crc >> 8) & 0xff;
	list.push(checksumByte1);
	list.push(checksumByte2);
	return list;
}
//加密发送的数据
const encrypt = (aesjs, md5Key, sequence, data, checksum) => {
	var iv = generateAESIV(sequence),
		sumArr = [],
		list = [];
	if (checksum) {
		var len = data.length - 2;
		list = data.slice(0, len);
		sumArr = data.slice(len);
	} else {
		list = data;
	}
	var encryptData = uint8ArrayToArray(blueAesEncrypt(aesjs, md5Key, iv, new Uint8Array(list)));
	return encryptData.concat(sumArr);
}
//DH加密
const blueDH = (p, g, crypto) => {
	var client = crypto.createDiffieHellman(p, "hex", g, "hex");
	var clientKey = client.generateKeys();
	//var clientSecret = client.computeSecret(server.getPublicKey());
	return client;
}
//md5加密
const blueMd5 = (md5, key) => {
	var arr = md5.array(key);
	return arr;
}
// aes加密
const blueAesEncrypt = (aesjs, mdKey, iv, bytes) => {
	var aesOfb = new aesjs.ModeOfOperation.ofb(mdKey, iv);
	var encryptedBytes = aesOfb.encrypt(bytes);
	return encryptedBytes;
}
//aes解密
const blueAesDecrypt = (aesjs, mdKey, iv, bytes) => {
	var aesOfb = new aesjs.ModeOfOperation.ofb(mdKey, iv);
	var decryptedBytes = aesOfb.decrypt(bytes);
	return decryptedBytes;
}
//获取Frame Control
const getFrameCTRLValue = (encrypted, checksum, direction, requireAck, frag) => {
	var frame = 0;
	if (encrypted) {
		frame = frame | (1 << FRAME_CTRL_POSITION_ENCRYPTED);
	}
	if (checksum) {
		frame = frame | (1 << FRAME_CTRL_POSITION_CHECKSUM);
	}
	if (direction == DIRECTION_INPUT) {
		frame = frame | (1 << FRAME_CTRL_POSITION_DATA_DIRECTION);
	}
	if (requireAck) {
		frame = frame | (1 << FRAME_CTRL_POSITION_REQUIRE_ACK);
	}
	if (frag) {
		frame = frame | (1 << FRAME_CTRL_POSITION_FRAG);
	}
	return frame;
}
//获取aes iv
const generateAESIV = sequence => {
	var result = [];
	for (var i = 0; i < 16; i++) {
		if (i == 0) {
			result[0] = sequence;
		} else {
			result[i] = AES_BASE_IV[i];
		}
	}
	return result;
}
//计算CRC值
const caluCRC = (crc, pByte) => {
	crc = (~crc) & 0xffff;
	for (var i = 0; i < pByte.length; i++) {
		crc = CRC_TB[((crc & 0xffff) >> 8) ^ (pByte[i] & 0xff)] ^ ((crc & 0xffff) << 8);
	}
	return (~crc) & 0xffff;
}
const showLoading = msg => {
	uni.showLoading({
		title: msg,
		mask: true
	});
}
const showToast = msg => {
	uni.showToast({
		title: msg,
		icon: 'none',
		duration: 2000
	})
}
const showModal = (msg, callback) => {
	uni.showModal({
		title: '提示',
		content: msg,
		showCancel: false, //是否显示取消按钮
		success: function(res) {
			callback && callback()
		}
	})
}
module.exports = {
	_isEmpty: _isEmpty,
	ab2hex: ab2hex,
	hexCharCodeToStr: hexCharCodeToStr,
	filterDevice: filterDevice,
	getType: getType,
	hexToBinArray: hexToBinArray,
	hexByArray: hexByArray,
	hexByInt: hexByInt,
	sortBy: sortBy,
	writeData: writeData,
	isSubcontractor: isSubcontractor,
	getFrameCTRLValue: getFrameCTRLValue,
	blueDH: blueDH,
	blueMd5: blueMd5,
	blueAesEncrypt: blueAesEncrypt,
	blueAesDecrypt: blueAesDecrypt,
	uint8ArrayToArray: uint8ArrayToArray,
	generateAESIV: generateAESIV,
	caluCRC: caluCRC,
	encrypt: encrypt,
	DH_P: DH_P,
	DH_G: DH_G,
	DIRECTION_OUTPUT: DIRECTION_OUTPUT,
	DIRECTION_INPUT: DIRECTION_INPUT,
	NEG_SET_SEC_TOTAL_LEN: NEG_SET_SEC_TOTAL_LEN,
	NEG_SET_SEC_ALL_DATA: NEG_SET_SEC_ALL_DATA,
	PACKAGE_VALUE: PACKAGE_VALUE,
	SUBTYPE_NEG: SUBTYPE_NEG,
	PACKAGE_CONTROL_VALUE: PACKAGE_CONTROL_VALUE,
	SUBTYPE_WIFI_NEG: SUBTYPE_WIFI_NEG,
	SUBTYPE_WIFI_LIST_NEG: SUBTYPE_WIFI_LIST_NEG,
	SUBTYPE_NEGOTIATION_NEG: SUBTYPE_NEGOTIATION_NEG,
	SUBTYPE_WIFI_MODEl: SUBTYPE_WIFI_MODEl,
	SUBTYPE_SET_SSID: SUBTYPE_SET_SSID,
	SUBTYPE_SET_PWD: SUBTYPE_SET_PWD,
	SUBTYPE_END: SUBTYPE_END,
	SUBTYPE_CUSTOM_DATA: SUBTYPE_CUSTOM_DATA,
	descSucList: descSucList,
	descFailList: descFailList,
	successList: successList,
	failList: failList,
	showToast: showToast,
	showLoading: showLoading,
	showModal: showModal
}

接下来废话不多说上代码

	/**        文本字符转换对应的ascll码
			 * 
			 */
getCharCodeat(str) {
				console.log(str,'str');
				var list = [];
				for (var i = 0; i < str.length; i++) {
					list.push(str.charCodeAt(i));
				}
				return list;
			},

/**
			 * 写入数据
			 */
			writeBLECharacteristicValue(data) {
				let that = this
				var obj = {},
					frameControl = 0;
				var sendData = this.getCharCodeat(data);
				obj = util.isSubcontractor(sendData, true, this.sequenceControl, false);
				frameControl = util.getFrameCTRLValue(false, true, util.DIRECTION_OUTPUT, false, obj.flag);
				var value = util.writeData(util.PACKAGE_VALUE, util.SUBTYPE_CUSTOM_DATA, frameControl, this
					.sequenceControl, obj.len, obj.lenData);
				var typedArray = new Uint8Array(value)
				uni.writeBLECharacteristicValue({
					deviceId: this.deviceId,
					serviceId: this.writeServiceId,
					characteristicId: this.writecharacteristicId,
					value: typedArray.buffer,
					writeType: 'write',
					success: function(res) {
						console.log(res, 'res');
						that.sequenceControl += 1;
						if (obj.flag) {
							setTimeout(() => {
								that.writeBLECharacteristicValue(obj.laveData);
								console.log(obj.laveData,'obj.laveData');
							}, 500)           
						}
					},
					fail: function(res) {
						console.log(res);
					}
				})
			},

欧克完事