diff --git a/components/onewire/binding/luat_lib_onewire.c b/components/onewire/binding/luat_lib_onewire.c
index 92e85249..f28d85b1 100644
--- a/components/onewire/binding/luat_lib_onewire.c
+++ b/components/onewire/binding/luat_lib_onewire.c
@@ -27,23 +27,6 @@ static int l_onewire_close(lua_State *L)
     return 0;
 }
 
-static const uint8_t crc8_maxim[256] = {
-    0, 94, 188, 226, 97, 63, 221, 131, 194, 156, 126, 32, 163, 253, 31, 65,
-    157, 195, 33, 127, 252, 162, 64, 30, 95, 1, 227, 189, 62, 96, 130, 220,
-    35, 125, 159, 193, 66, 28, 254, 160, 225, 191, 93, 3, 128, 222, 60, 98,
-    190, 224, 2, 92, 223, 129, 99, 61, 124, 34, 192, 158, 29, 67, 161, 255,
-    70, 24, 250, 164, 39, 121, 155, 197, 132, 218, 56, 102, 229, 187, 89, 7,
-    219, 133, 103, 57, 186, 228, 6, 88, 25, 71, 165, 251, 120, 38, 196, 154,
-    101, 59, 217, 135, 4, 90, 184, 230, 167, 249, 27, 69, 198, 152, 122, 36,
-    248, 166, 68, 26, 153, 199, 37, 123, 58, 100, 134, 216, 91, 5, 231, 185,
-    140, 210, 48, 110, 237, 179, 81, 15, 78, 16, 242, 172, 47, 113, 147, 205,
-    17, 79, 173, 243, 112, 46, 204, 146, 211, 141, 111, 49, 178, 236, 14, 80,
-    175, 241, 19, 77, 206, 144, 114, 44, 109, 51, 209, 143, 12, 82, 176, 238,
-    50, 108, 142, 208, 83, 13, 239, 177, 240, 174, 76, 18, 145, 207, 45, 115,
-    202, 148, 118, 40, 171, 245, 23, 73, 8, 86, 180, 234, 105, 55, 213, 139,
-    87, 9, 235, 181, 54, 104, 138, 212, 149, 203, 41, 119, 244, 170, 72, 22,
-    233, 183, 85, 11, 136, 214, 52, 106, 43, 117, 151, 201, 74, 20, 246, 168,
-    116, 42, 200, 150, 21, 75, 169, 247, 182, 232, 10, 84, 215, 137, 107, 53};
 
 /*
 读取DS18B20
@@ -70,101 +53,13 @@ static int l_onewire_ds18b20(lua_State *L)
     ctx.mode = luaL_checkinteger(L, 1);
     ctx.id = luaL_checkinteger(L, 2);
     int check_crc = lua_toboolean(L, 3);
-    // 初始化单总线
-    luat_os_entry_cri();
-    ret = luat_onewire_setup(&ctx);
-    if (ret)
-    {
-        LLOGW("setup失败 mode %d id %d ret %d", ctx.mode, ctx.id, ret);
-        goto exit;
-    }
-    // 复位设备
-    ret = luat_onewire_reset(&ctx);
-    // if (ret) {
-    //     LLOGW("reset失败 mode %d id %d ret %d", ctx.mode, ctx.id, ret);
-    //     return 0;
-    // }
-    // 建立连接
-    ret = luat_onewire_connect(&ctx);
-    if (ret)
-    {
-        LLOGW("connect失败 mode %d id %d ret %d", ctx.mode, ctx.id, ret);
-        goto exit;
-    }
-    // 写入2字节的数据
-    char wdata[] = {0xCC, 0x44}; /* skip rom */ /* convert */
-    luat_onewire_write(&ctx, wdata, 2);
-
-    // 再次复位
-    luat_onewire_reset(&ctx);
-    // 再次建立连接
-    ret = luat_onewire_connect(&ctx);
-    if (ret)
-    {
-        LLOGW("connect失败2 mode %d id %d ret %d", ctx.mode, ctx.id, ret);
-        goto exit;
-    }
-
-    wdata[1] = 0xBE;
-    luat_onewire_write(&ctx, wdata, 2);
-
-    uint8_t data[9] = {0};
-    // 校验模式读9个字节, 否则读2个字节
-    ret = luat_onewire_read(&ctx, (char*)data, check_crc ? 9 : 2);
-    luat_onewire_close(&ctx); // 后续不需要读取的
-    if (ret != 9)
-    {
-        LLOGW("read失败2 mode %d id %d ret %d", ctx.mode, ctx.id, ret);
-        goto exit;
-    }
-
-    if (check_crc)
-    {
-        uint8_t crc = 0;
-        for (size_t i = 0; i < 8; i++){
-            crc = crc8_maxim[crc ^ data[i]];
-        }
-        if (crc != data[8]) {
-            LLOGD("crc %02X %02X", crc, data[8]);
-            goto exit;
-        }
-    }
-
-    uint8_t TL, TH;
-    int32_t tem;
-    int32_t val;
-
-    TL = data[0];
-    TH = data[1];
-
-    // LLOGD("读出的数据");
-    // LLOGDUMP(data, 9);
-
-    if (TH > 7)
-    {
-        TH = ~TH;
-        TL = ~TL;
-        tem = TH;
-        tem <<= 8;
-        tem += TL;
-        tem = (int32_t)(tem * 0.0625 * 10 + 0.5);
-        val = -tem;
-    }
-    else
-    {
-        tem = TH;
-        tem <<= 8;
-        tem += TL;
-        tem = (int32_t)(tem * 0.0625 * 10 + 0.5);
-        val = tem;
+    int32_t val = 0;
+    ret = luat_onewire_ds18b20(&ctx, check_crc, &val);
+    if (ret) {
+        return 0;
     }
     lua_pushinteger(L, val);
-    luat_os_exit_cri();
     return 1;
-exit:
-    luat_onewire_close(&ctx); // 清理并关闭
-    luat_os_exit_cri();
-    return 0;
 }
 
 #include "rotable2.h"
diff --git a/components/onewire/include/luat_onewire.h b/components/onewire/include/luat_onewire.h
index 14d295f7..eb05c00a 100644
--- a/components/onewire/include/luat_onewire.h
+++ b/components/onewire/include/luat_onewire.h
@@ -13,22 +13,16 @@ typedef struct luat_onewire_ctx
 
 
 int luat_onewire_setup(luat_onewire_ctx_t* ctx);
-int luat_onewire_reset(luat_onewire_ctx_t* ctx);
-int luat_onewire_connect(luat_onewire_ctx_t* ctx);
 int luat_onewire_read(luat_onewire_ctx_t* ctx, char* buff, size_t len);
 int luat_onewire_write(luat_onewire_ctx_t* ctx, const char* buff, size_t len);
 int luat_onewire_close(luat_onewire_ctx_t* ctx);
 
 int luat_onewire_setup_gpio(luat_onewire_ctx_t* ctx);
-int luat_onewire_reset_gpio(luat_onewire_ctx_t* ctx);
-int luat_onewire_connect_gpio(luat_onewire_ctx_t* ctx);
 int luat_onewire_read_gpio(luat_onewire_ctx_t* ctx, char* buff, size_t len);
 int luat_onewire_write_gpio(luat_onewire_ctx_t* ctx, const char* buff, size_t len);
 int luat_onewire_close_gpio(luat_onewire_ctx_t* ctx);
 
 typedef int (*onewire_setup)(luat_onewire_ctx_t* ctx);
-typedef int (*onewire_reset)(luat_onewire_ctx_t* ctx);
-typedef int (*onewire_connect)(luat_onewire_ctx_t* ctx);
 typedef int (*onewire_read)(luat_onewire_ctx_t* ctx, char* buff, size_t len);
 typedef int (*onewire_write)(luat_onewire_ctx_t* ctx, const char* buff, size_t len);
 typedef int (*onewire_close)(luat_onewire_ctx_t* ctx);
@@ -36,8 +30,6 @@ typedef int (*onewire_close)(luat_onewire_ctx_t* ctx);
 typedef struct luat_onewire_opt {
     int32_t mode;
     onewire_setup setup;
-    onewire_reset reset;
-    onewire_connect connect;
     onewire_read read;
     onewire_write write;
     onewire_close close;
@@ -45,4 +37,6 @@ typedef struct luat_onewire_opt {
 
 int luat_onewire_set_hw_opt(const luat_onewire_opt_t* ctx);
 
+int luat_onewire_ds18b20(const luat_onewire_ctx_t* ctx, int check_crc, int32_t *re);
+
 #endif
diff --git a/components/onewire/src/luat_onewire.c b/components/onewire/src/luat_onewire.c
index f997d630..2ffbb4b6 100644
--- a/components/onewire/src/luat_onewire.c
+++ b/components/onewire/src/luat_onewire.c
@@ -10,8 +10,6 @@ static luat_onewire_opt_t* opt_hw;
 static const luat_onewire_opt_t opt_gpio = {
     .mode = LUAT_ONEWIRE_MODE_GPIO,
     .setup = luat_onewire_setup_gpio,
-    .reset = luat_onewire_reset_gpio,
-    .connect = luat_onewire_connect_gpio,
     .read = luat_onewire_read_gpio,
     .write = luat_onewire_write_gpio,
     .close = luat_onewire_close_gpio
@@ -41,20 +39,6 @@ int luat_onewire_setup(luat_onewire_ctx_t* ctx) {
     return opt->setup(ctx);
 }
 
-int luat_onewire_reset(luat_onewire_ctx_t* ctx){
-    const luat_onewire_opt_t* opt = get_opt(ctx);
-    if (opt == NULL)
-        return -1;
-    return opt->reset(ctx);
-}
-
-int luat_onewire_connect(luat_onewire_ctx_t* ctx){
-    const luat_onewire_opt_t* opt = get_opt(ctx);
-    if (opt == NULL)
-        return -1;
-    return opt->connect(ctx);
-}
-
 int luat_onewire_read(luat_onewire_ctx_t* ctx, char* buff, size_t len){
     const luat_onewire_opt_t* opt = get_opt(ctx);
     if (opt == NULL)
@@ -82,7 +66,7 @@ int luat_onewire_setup_gpio(luat_onewire_ctx_t* ctx) {
     return 0;
 }
 
-int luat_onewire_reset_gpio(luat_onewire_ctx_t* ctx) {
+int ds18b20_reset_gpio(luat_onewire_ctx_t* ctx) {
     int pin = ctx->id;
     luat_gpio_mode(pin, Luat_GPIO_OUTPUT, Luat_GPIO_PULLUP, Luat_GPIO_LOW);
     luat_gpio_set(pin, Luat_GPIO_LOW);
@@ -92,7 +76,7 @@ int luat_onewire_reset_gpio(luat_onewire_ctx_t* ctx) {
     return 0;
 }
 
-int luat_onewire_connect_gpio(luat_onewire_ctx_t* ctx) {
+int ds18b20_connect_gpio(luat_onewire_ctx_t* ctx) {
     uint8_t retry = 0;
     int pin = ctx->id;
     luat_gpio_mode(pin, Luat_GPIO_INPUT, Luat_GPIO_PULLUP, 0);
@@ -196,3 +180,122 @@ int luat_onewire_close_gpio(luat_onewire_ctx_t* ctx) {
     return 0;
 }
 
+static const uint8_t crc8_maxim[256] = {
+    0, 94, 188, 226, 97, 63, 221, 131, 194, 156, 126, 32, 163, 253, 31, 65,
+    157, 195, 33, 127, 252, 162, 64, 30, 95, 1, 227, 189, 62, 96, 130, 220,
+    35, 125, 159, 193, 66, 28, 254, 160, 225, 191, 93, 3, 128, 222, 60, 98,
+    190, 224, 2, 92, 223, 129, 99, 61, 124, 34, 192, 158, 29, 67, 161, 255,
+    70, 24, 250, 164, 39, 121, 155, 197, 132, 218, 56, 102, 229, 187, 89, 7,
+    219, 133, 103, 57, 186, 228, 6, 88, 25, 71, 165, 251, 120, 38, 196, 154,
+    101, 59, 217, 135, 4, 90, 184, 230, 167, 249, 27, 69, 198, 152, 122, 36,
+    248, 166, 68, 26, 153, 199, 37, 123, 58, 100, 134, 216, 91, 5, 231, 185,
+    140, 210, 48, 110, 237, 179, 81, 15, 78, 16, 242, 172, 47, 113, 147, 205,
+    17, 79, 173, 243, 112, 46, 204, 146, 211, 141, 111, 49, 178, 236, 14, 80,
+    175, 241, 19, 77, 206, 144, 114, 44, 109, 51, 209, 143, 12, 82, 176, 238,
+    50, 108, 142, 208, 83, 13, 239, 177, 240, 174, 76, 18, 145, 207, 45, 115,
+    202, 148, 118, 40, 171, 245, 23, 73, 8, 86, 180, 234, 105, 55, 213, 139,
+    87, 9, 235, 181, 54, 104, 138, 212, 149, 203, 41, 119, 244, 170, 72, 22,
+    233, 183, 85, 11, 136, 214, 52, 106, 43, 117, 151, 201, 74, 20, 246, 168,
+    116, 42, 200, 150, 21, 75, 169, 247, 182, 232, 10, 84, 215, 137, 107, 53};
+
+
+int luat_onewire_ds18b20(const luat_onewire_ctx_t* ctx, int check_crc, int32_t *re) {
+
+    // 初始化单总线
+    luat_os_entry_cri();
+    int ret = luat_onewire_setup(ctx);
+    if (ret)
+    {
+        LLOGW("setup失败 mode %d id %d ret %d", ctx->mode, ctx->id, ret);
+        goto exit;
+    }
+    // 复位设备
+    ret = ds18b20_reset_gpio(ctx);
+    // if (ret) {
+    //     LLOGW("reset失败 mode %d id %d ret %d", ctx->mode, ctx->id, ret);
+    //     return 0;
+    // }
+    // 建立连接
+    ret = ds18b20_connect_gpio(ctx);
+    if (ret)
+    {
+        LLOGW("connect失败 mode %d id %d ret %d", ctx->mode, ctx->id, ret);
+        goto exit;
+    }
+    // 写入2字节的数据
+    char wdata[] = {0xCC, 0x44}; /* skip rom */ /* convert */
+    luat_onewire_write(ctx, wdata, 2);
+
+    // 再次复位
+    ds18b20_reset_gpio(ctx);
+    // 再次建立连接
+    ret = ds18b20_connect_gpio(ctx);
+    if (ret)
+    {
+        LLOGW("connect失败2 mode %d id %d ret %d", ctx->mode, ctx->id, ret);
+        goto exit;
+    }
+
+    wdata[1] = 0xBE;
+    luat_onewire_write(ctx, wdata, 2);
+
+    uint8_t data[9] = {0};
+    // 校验模式读9个字节, 否则读2个字节
+    ret = luat_onewire_read(ctx, (char*)data, check_crc ? 9 : 2);
+    luat_onewire_close(ctx); // 后续不需要读取的
+    if (ret != 9)
+    {
+        LLOGW("read失败2 mode %d id %d ret %d", ctx->mode, ctx->id, ret);
+        goto exit;
+    }
+
+    if (check_crc)
+    {
+        uint8_t crc = 0;
+        for (size_t i = 0; i < 8; i++){
+            crc = crc8_maxim[crc ^ data[i]];
+        }
+        if (crc != data[8]) {
+            LLOGD("crc %02X %02X", crc, data[8]);
+            goto exit;
+        }
+    }
+
+    uint8_t TL, TH;
+    int32_t tem;
+    int32_t val;
+
+    TL = data[0];
+    TH = data[1];
+
+    // LLOGD("读出的数据");
+    // LLOGDUMP(data, 9);
+
+    if (TH > 7)
+    {
+        TH = ~TH;
+        TL = ~TL;
+        tem = TH;
+        tem <<= 8;
+        tem += TL;
+        tem = (int32_t)(tem * 0.0625 * 10 + 0.5);
+        val = -tem;
+    }
+    else
+    {
+        tem = TH;
+        tem <<= 8;
+        tem += TL;
+        tem = (int32_t)(tem * 0.0625 * 10 + 0.5);
+        val = tem;
+    }
+    luat_onewire_close(ctx); // 清理并关闭
+    luat_os_exit_cri();
+    *re = val;
+    return 0;
+exit:
+    luat_onewire_close(ctx); // 清理并关闭
+    luat_os_exit_cri();
+    return -1;
+}
+