diff --git a/include/sys.h b/include/znordic.h
similarity index 69%
rename from include/sys.h
rename to include/znordic.h
index 8d20c2f..252024a 100644
--- a/include/sys.h
+++ b/include/znordic.h
@@ -19,7 +19,12 @@
 #include "nrf_ble_qwr.h"
 #include "nrf_block_dev_sdc.h"
 #include "nrf_delay.h"
+#include "nrf_drv_pwm.h"
+#include "nrf_drv_saadc.h"
 #include "nrf_drv_spi.h"
+#include "nrf_drv_twi.h"
+#include "nrf_drv_wdt.h"
+#include "nrf_gpio.h"
 #include "nrf_log.h"
 #include "nrf_log_ctrl.h"
 #include "nrf_log_default_backends.h"
@@ -31,8 +36,18 @@
 //
 #define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */
 
-void zsys_init();
-void zsys_loop();
+/*******************************************************************************
+ *                                    UTILS                                    *
+ *******************************************************************************/
+void znordic_init();
+void znordic_loop();
+
+void    znrf_gpio_cfg_output(uint32_t pin_number, nrf_gpio_pin_pull_t pull);
+int16_t znrf_adc_channel_read_val(uint16_t channel);
+
+/*******************************************************************************
+ *                                     LOG                                     *
+ *******************************************************************************/
 
 #define ZLOGI(...) NRF_LOG_INFO(__VA_ARGS__)
 #define ZLOGE(...) NRF_LOG_ERROR(__VA_ARGS__)
diff --git a/src/sys.c b/src/znordic.c
similarity index 75%
rename from src/sys.c
rename to src/znordic.c
index 436ce41..1ea1d3d 100644
--- a/src/sys.c
+++ b/src/znordic.c
@@ -1,5 +1,5 @@
-#include "sys.h"
-void zsys_init() {
+#include "znordic.h"
+void znordic_init() {
   {
     /*******************************************************************************
      *                               日志系统初始化                                *
@@ -42,10 +42,26 @@ void zsys_init() {
   }
 }
 
-void zsys_loop() {
+void znordic_loop() {
   while (true) {
     if (NRF_LOG_PROCESS() == false) {
       nrf_pwr_mgmt_run();
     }
   }
 }
+
+
+void znrf_gpio_cfg_output(uint32_t pin_number, nrf_gpio_pin_pull_t pull) {  //
+  nrf_gpio_cfg(pin_number, NRF_GPIO_PIN_DIR_OUTPUT, NRF_GPIO_PIN_INPUT_DISCONNECT, pull, NRF_GPIO_PIN_S0S1, NRF_GPIO_PIN_NOSENSE);
+}
+
+int16_t znrf_adc_channel_read_val(uint16_t channel) {
+  nrf_saadc_value_t value;
+  ret_code_t        err_code;
+  err_code = nrfx_saadc_sample_convert(channel, &value);
+  if (err_code != NRF_SUCCESS) {
+    ZLOGE("nrfx_saadc_sample_convert(%d) fail err_code:%d", channel, err_code);
+    return 0;
+  }
+  return value;
+}
\ No newline at end of file