From 84324a933cbf69838a284f824ef7d543c5f775d5 Mon Sep 17 00:00:00 2001
From: Wenxue <wenxue.guo@avnet.com>
Date: Tue, 02 Sep 2025 09:53:22 +0800
Subject: [PATCH] HAL库I2C实现SHT20
---
Core/Src/main.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/Core/Src/main.c b/Core/Src/main.c
index b804c64..779c896 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -19,6 +19,7 @@
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "adc.h"
+#include "i2c.h"
#include "tim.h"
#include "usart.h"
#include "gpio.h"
@@ -26,7 +27,7 @@
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "miscdev.h"
-#include "ds18b20.h"
+#include "sht20.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
@@ -70,7 +71,7 @@
/* USER CODE BEGIN 1 */
int rv;
- float temperature;
+ float temperature, humidity;
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
@@ -95,6 +96,7 @@
MX_ADC1_Init();
MX_TIM6_Init();
MX_TIM1_Init();
+ MX_I2C1_Init();
/* USER CODE BEGIN 2 */
beep_start(2, 300);
/* USER CODE END 2 */
@@ -103,14 +105,14 @@
/* USER CODE BEGIN WHILE */
while (1)
{
- rv = ds18b20_sample( &temperature);
- if( rv < 0 )
+ rv = sht20_sample_TrH(&temperature, &humidity);
+ if( rv )
{
- printf("ERROR: DS18B20 sample data failure, rv=%d\r\n", rv);
+ printf("ERROR: SHT20 sample data failure, rv=%d\r\n", rv);
}
else
{
- printf("DS18B20 sample temperature: %.3f\r\n", temperature);
+ printf("SHT20 sample temperature: %.2f relative humidity: %.1f%%\r\n", temperature, humidity);
}
HAL_Delay(1000);
--
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