Add barometer example app.

apps/CMakeLists.txt

@@ -1,4 +1,5 @@
 add_subdirectory(iperf_server)
 add_subdirectory(tcp_server)
 add_subdirectory(adc_dma_chain)
-add_subdirectory(piccolosdr)
+add_subdirectory(piccolosdr)
+add_subdirectory(barometer)

apps/barometer/CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.12)
+
+project(pico-barometer)
+
+add_executable(barometer test.c)
+
+target_link_libraries(barometer LINK_PUBLIC bmp180)
+
+pico_add_extra_outputs(barometer)
+
+pico_enable_stdio_usb(barometer 1)
+pico_enable_stdio_uart(barometer 0)
+
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

apps/barometer/README.md

@@ -0,0 +1,10 @@
+# Barometer
+This example can read temperature and atmospheric pressure using the BMP180 sensor.
+
+### Dependencies Device
+- [BMP180](/lib/bmp180) Library.
+
+### Usage
+This program will start collecting samples when it receives a char from the virtual serial port. It will also output the following messages:
+
+![BMP180 Barometer Example](/apps/barometer/media/barometer_bmp180_example.gif)

lib/bmp180/CMakeLists.txt

@@ -1,10 +1,6 @@
 cmake_minimum_required(VERSION 3.12)
 
-project(pico-bmp180)
-
-add_executable(bmp180
-    test.c
-)
+add_library(bmp180 bmp180.h)
 
 target_link_libraries(bmp180
     pico_stdlib
@@ -12,9 +8,4 @@ target_link_libraries(bmp180
     hardware_i2c
 )
 
-pico_enable_stdio_usb(bmp180 1)
-pico_enable_stdio_uart(bmp180 0)
-
-pico_add_extra_outputs(bmp180)
-
-set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+target_include_directories (bmp180 PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})

lib/bmp180/README.md

@@ -0,0 +1,2 @@
+# BMP180 Library
+This is a library for the BMP180 atmospheric pressure sensor. It can output the temperature and the barometric pressure. For an example of how to use it, check out the [barometer](/apps/barometer) example.