actualizacion

PICO/sensor_temperatura/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.1)
+
+include(~/linuxTools/pico-sdk/external/pico_sdk_import.cmake)
+
+project(sensor_temperatura)
+
+pico_sdk_init()
+
+add_executable(main
+    main.c
+)
+
+pico_enable_stdio_usb(main 1)
+pico_enable_stdio_uart(main 0)
+pico_add_extra_outputs(main)
+target_link_libraries(main pico_stdlib hardware_adc)
+

PICO/sensor_temperatura/main.c

@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include "hardware/gpio.h"
+#include "pico/stdlib.h"
+#include "hardware/gpio.h"
+#include "hardware/adc.h"
+#include "pico/binary_info.h"
+
+const float conv_factor = 3.3f / (1 << 12);
+
+int main()
+{
+    stdio_init_all();
+    uint16_t lectura;
+    float lect_conv, temperatura;
+
+    adc_init();
+    adc_set_temp_sensor_enabled(true);
+    adc_select_input(4); // imput 4 - sensor temperatura
+
+    while (true)
+    {
+        lectura = adc_read();
+        lect_conv = lectura * conv_factor;
+        temperatura = 27 - (lect_conv - 0.706) / 0.001721;
+
+        // mostrar temperatura
+        printf("%2.1f\n", temperatura);
+
+        sleep_ms(2000);
+    }
+    return 0;
+}