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new 2a9e84f docs/tutorials: Update `Air Quality Sensor` tutorial
2a9e84f is described below
commit 2a9e84f5bd38eb93a955ef4643c96fbd0d7df627
Author: Wojciech Pietraszewski <[email protected]>
AuthorDate: Tue Aug 13 17:48:27 2024 +0200
docs/tutorials: Update `Air Quality Sensor` tutorial
Updates the article to reflect the latest Mynewt release.
---
docs/tutorials/sensors/air_quality_sensor.rst | 192 +++++++++++++++++---------
1 file changed, 125 insertions(+), 67 deletions(-)
diff --git a/docs/tutorials/sensors/air_quality_sensor.rst
b/docs/tutorials/sensors/air_quality_sensor.rst
index c09fea2..ef4e7bb 100644
--- a/docs/tutorials/sensors/air_quality_sensor.rst
+++ b/docs/tutorials/sensors/air_quality_sensor.rst
@@ -22,15 +22,20 @@ To start, create a new project under which you will do
development for this appl
$ mkdir $HOME/src
$ cd $HOME/src
$ newt new air_quality
+ $ cd air_quality
-If you are using a different development board, you will need to know the
board support package for that hardware. You can look up its location, add it
your project, and fetch that along with the core OS components. Since the
nRF52DK is supported in the Mynewt Core, we don't need to do much here.
-
-Your project.yml file should look like this:
+If you are using a different development board, you will need to know the
board support package
+for that hardware. You can look up its location, add it to your project, and
fetch that along with
+the core OS components. Since the nRF52DK is supported in the Mynewt Core, we
don't need to do much here.
.. code-block:: console
- [user@IsMyLaptop:~/src/air_quality]$ emacs project.yml &
[user@IsMyLaptop:~/src/air_quality]$ cat project.yml
+
+Your ``project.yml`` file should look like this:
+
+.. code-block:: yaml
+
project.name: "air_quality"
project.repositories:
@@ -41,17 +46,22 @@ Your project.yml file should look like this:
#
repository.apache-mynewt-core:
type: github
- vers: 0-latest
+ vers: 1.12.0
user: apache
repo: mynewt-core
+After updating ``vers`` to the latest release of Mynewt (see *Latest News* at
the top of the page),
+it's time to fetch needed repositories:
+
+.. code-block:: console
+
[user@IsMyLaptop:~/src/air_quality]$ newt upgrade
Downloading repository mynewt-core (commit: master) ...
Downloading repository mynewt-nimble (commit: master) ...
- apache-mynewt-core successfully upgraded to version 0.0.0
- apache-mynewt-nimble successfully upgraded to version 0.0.0
- [user@IsMyLaptop:~/src/air_quality]$ ls repos/
- apache-mynewt-core
+
+Once the command finishes (which may take a while), there should be *repos*
folder in your
+project's root directory. You can find there Mynewt Core components, NimBLE
stack and other
+dependencies.
Next, create a target for the nRF52DK bootloader:
@@ -59,20 +69,16 @@ Next, create a target for the nRF52DK bootloader:
[user@IsMyLaptop:~/src/air_quality]$ newt target create boot_nrf52dk
Target targets/boot_nrf52dk successfully created
- [user@IsMyLaptop:~/src/air_quality]$ newt target set boot_nrf52dk
bsp=@apache-mynewt-core/hw/bsp/nrf52dk
- Target targets/boot_nrf52dk successfully set target.bsp to
@apache-mynewt-core/hw/bsp/nrf52dk
+ [user@IsMyLaptop:~/src/air_quality]$ newt target set boot_nrf52dk
bsp=@apache-mynewt-core/hw/bsp/nordic_pca10040
+ Target targets/boot_nrf52dk successfully set target.bsp to
@apache-mynewt-core/hw/bsp/nordic_pca10040
[user@IsMyLaptop:~/src/air_quality]$ newt target set boot_nrf52dk
app=@mcuboot/boot/mynewt
Target targets/boot_nrf52dk successfully set target.app to
@mcuboot/boot/mynewt
[user@IsMyLaptop:~/src/air_quality]$ newt target set boot_nrf52dk
build_profile=optimized
Target targets/boot_nrf52dk successfully set target.build_profile to
optimized
[user@IsMyLaptop:~/src/air_quality]$ newt target show
- @apache-mynewt-core/targets/unittest
- bsp=hw/bsp/native
- build_profile=debug
- compiler=compiler/sim
targets/boot_nrf52dk
app=@mcuboot/boot/mynewt
- bsp=@apache-mynewt-core/hw/bsp/nrf52dk
+ bsp=@apache-mynewt-core/hw/bsp/nordic_pca10040
build_profile=optimized
targets/my_blinky_sim
app=apps/blinky
@@ -83,12 +89,14 @@ Build the bootloader target and load it onto the board:
.. code-block:: console
- newt build boot_nrf52dk
- ....
- Linking boot.elf
- App successfully built:
/Users/user/src/air_quality/bin/boot_nrf52dk/boot/mynewt/mynewt.elf
- [user@IsMyLaptop:~/src/air_quality]
- $ newt load boot_nrf52dk
+ [user@IsMyLaptop:~/src/air_quality]$ newt build boot_nrf52dk
+ Building target targets/boot_nrf52dk
+ ...
+ Linking
/home/user/src/air_quality/bin/targets/boot_nrf52dk/app/@mcuboot/boot/mynewt/mynewt.elf
+ Target successfully built: targets/boot_nrf52dk
+
+ [user@IsMyLaptop:~/src/air_quality]$ newt load boot_nrf52dk
+ Loading bootloader ...
Create a Test Project
~~~~~~~~~~~~~~~~~~~~~
@@ -98,14 +106,20 @@ Now that you have your system setup, you can start
building the application. Fir
.. code-block:: console
[user@IsMyLaptop:~/src/air_quality]$ mkdir apps/air_quality
- [user@IsMyLaptop:~/src/air_quality]$ cp
repos/apache-mynewt-core/apps/bleprph/pkg.yml apps/air_quality/
- [user@IsMyLaptop:~/src/air_quality]$ cp -Rp
repos/apache-mynewt-core/apps/bleprph/src apps/air_quality/
+ [user@IsMyLaptop:~/src/air_quality]$ cp
repos/apache-mynewt-nimble/apps/bleprph/pkg.yml apps/air_quality/
+ [user@IsMyLaptop:~/src/air_quality]$ cp -Rp
repos/apache-mynewt-nimble/apps/bleprph/src apps/air_quality/
-Modify the apps/air\_quality/pkg.yml for air_quality in order to change the
*pkg.name* to be *apps/air\_quality*. You'll need to add the
``@apache-mynewt-core/`` path to all the package dependencies, since the app no
longer resides within the apache-mynewt-core repository.
+Modify the apps/air\_quality/pkg.yml for air_quality in order to change the
*pkg.name* to be
+*apps/air\_quality*. You'll need to add the ``@apache-mynewt-nimble/`` path to
all the package
+dependencies, since the app no longer resides within the apache-mynewt-nimble
repository.
+Remember to add double quotes to the paths, as in the example below:
.. code-block:: console
[user@IsMyLaptop:~/src/air_quality]$ cat apps/air_quality/pkg.yml
+
+.. code-block:: yaml
+
pkg.name: apps/air_quality
pkg.type: app
pkg.description: BLE Air Quality application.
@@ -118,21 +132,23 @@ Modify the apps/air\_quality/pkg.yml for air_quality in
order to change the *pkg
- "@mcuboot/boot/bootutil"
- "@apache-mynewt-core/kernel/os"
- "@apache-mynewt-core/mgmt/imgmgr"
- - "@apache-mynewt-core/mgmt/newtmgr"
- - "@apache-mynewt-core/mgmt/newtmgr/transport/ble"
- - "@apache-mynewt-core/net/nimble/controller"
- - "@apache-mynewt-core/net/nimble/host"
- - "@apache-mynewt-core/net/nimble/host/services/ans"
- - "@apache-mynewt-core/net/nimble/host/services/gap"
- - "@apache-mynewt-core/net/nimble/host/services/gatt"
- - "@apache-mynewt-core/net/nimble/host/store/config"
- - "@apache-mynewt-core/sys/console/full"
- - "@apache-mynewt-core/sys/log/full"
- - "@apache-mynewt-core/sys/stats/full"
+ - "@apache-mynewt-core/mgmt/smp"
+ - "@apache-mynewt-core/mgmt/smp/transport/ble"
+ - "@apache-mynewt-core/sys/console"
+ - "@apache-mynewt-core/sys/log"
+ - "@apache-mynewt-core/sys/log/modlog"
+ - "@apache-mynewt-core/sys/stats"
- "@apache-mynewt-core/sys/sysinit"
- "@apache-mynewt-core/sys/id"
- - "@apache-mynewt-core/net/nimble/transport/ram"
- - "@apache-mynewt-core/sys/shell"
+ - "@apache-mynewt-nimble/nimble/host"
+ - "@apache-mynewt-nimble/nimble/host/services/ans"
+ - "@apache-mynewt-nimble/nimble/host/services/dis"
+ - "@apache-mynewt-nimble/nimble/host/services/gap"
+ - "@apache-mynewt-nimble/nimble/host/services/gatt"
+ - "@apache-mynewt-nimble/nimble/host/store/config"
+ - "@apache-mynewt-nimble/nimble/host/util"
+
+
Next create a target for it:
@@ -140,15 +156,15 @@ Next create a target for it:
[user@IsMyLaptop:~/src/air_quality]$ newt target create air_q
Target targets/air_q successfully created
- [user@IsMyLaptop:~/src/air_quality]$ newt target set air_q
bsp=@apache-mynewt-core/hw/bsp/nrf52dk
- Target targets/air_q successfully set target.bsp to
@apache-mynewt-core/hw/bsp/nrf52dk
+ [user@IsMyLaptop:~/src/air_quality]$ newt target set air_q
bsp=@apache-mynewt-core/hw/bsp/nordic_pca10040
+ Target targets/air_q successfully set target.bsp to
@apache-mynewt-core/hw/bsp/nordic_pca10040
[user@IsMyLaptop:~/src/air_quality]$ newt target set air_q
app=apps/air_quality
Target targets/air_q successfully set target.app to apps/air_quality
[user@IsMyLaptop:~/src/air_quality]$ newt target set air_q
build_profile=debug
Target targets/air_q successfully set target.build_profile to debug
[user@IsMyLaptop:~/src/air_quality]$ newt build air_q
- ....
- Linking
/Users/users/dev/myproj/bin/targets/air_q/app/apps/air_quality/air_quality.elf
+ ...
+ Linking
/home/user/src/air_quality/bin/targets/air_q/app/apps/air_quality/air_quality.elf
Target successfully built: targets/air_q
Create Packages For Drivers
@@ -263,37 +279,58 @@ Now you can add the files you need. You'll need a
``pkg.yml`` to describe the dr
{
}
-And add a dependency to this package in your project.yml file.
-
-Here's the listing from apps/air\_quality/pkg.yml:
+And add a dependency to this package in your ``pkg.yml`` file.
.. code-block:: console
+ [user@IsMyLaptop:~/src/air_quality]$ cat apps/air_quality/pkg.yml
+
+.. code-block:: yaml
+
pkg.name: apps/air_quality
pkg.type: app
- pkg.description: Air quality sensor test
+ pkg.description: BLE Air Quality application.
+ pkg.author: "Apache Mynewt <[email protected]>"
+ pkg.homepage: "http://mynewt.apache.org/";
pkg.keywords:
pkg.deps:
- "@apache-mynewt-core/boot/split"
- "@mcuboot/boot/bootutil"
- "@apache-mynewt-core/kernel/os"
- ....
- - "@apache-mynewt-core/sys/id"
- - "@apache-mynewt-core/net/nimble/transport/ram"
- - "@apache-mynewt-core/sys/shell"
+ - "@apache-mynewt-core/mgmt/imgmgr"
+ ...
+ - "@apache-mynewt-nimble/nimble/host/store/config"
+ - "@apache-mynewt-nimble/nimble/host/util"
- libs/my_drivers/senseair
-Add a call to your ``main()`` to initialize this driver:
+
+Include driver's header and add a call to ``senseair_init()`` in your main
function to initialize
+this driver:
.. code-block:: console
- [user@IsMyLaptop:~/src/air_quality]$ diff project/blinky/src/main.c
project/air_quality/src/main.c
- 28a29
- > #include <senseair/senseair.h>
- 190a192
- > senseair_init();
- [user@IsMyLaptop:~/src/air_quality
+ $ cat apps/air_quality/src/main.c
+
+.. code-block:: c
+
+ #include <senseair/senseair.h>
+ ...
+
+ int
+ mynewt_main(int argc, char **argv)
+ {
+ ...
+ int rc;
+
+ /* Initialize OS */
+ sysinit();
+
+ /* Initialize sensor driver */
+ senseair_init();
+ ...
+ return 0;
+ }
Add CLI Commands For Testing Drivers
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -303,6 +340,9 @@ While developing the driver, it would be helpful to issue
operations from the co
.. code-block:: console
[user@IsMyLaptop:~/src/air_quality]$ cat targets/air_q/syscfg.yml
+
+.. code-block:: yaml
+
syscfg.vals:
# Enable the shell task.
SHELL_TASK: 1
@@ -310,6 +350,13 @@ While developing the driver, it would be helpful to issue
operations from the co
CONSOLE_UART: 0
CONSOLE_RTT: 1
+Also, add a shell dependency in your app's ``pkg.yml``:
+
+.. code-block:: yaml
+
+ pkg.deps:
+ - "@apache-mynewt-core/sys/shell"
+
Then register your senseair command with the shell by adding the following to
``libs/my_drivers/senseair/src/senseair.c``
.. code-block:: c
@@ -343,7 +390,18 @@ Then register your senseair command with the shell by
adding the following to ``
}
-Build the target, create an image, and load it onto your board. Then run
``telnet localhost 19021`` to start the RTT Console.
+Build the target, create an image, and load it onto your board.
+
+.. code-block:: console
+
+ [user@IsMyLaptop:~/src/air_quality]$ newt create-image air_q 1.0
+ Compiling ...
+ Linking
/home/user/src/air_quality/bin/targets/air_q/app/apps/air_quality/air_quality.elf
+ App image successfully generated:
/home/user/src/air_quality/bin/targets/air_q/app/apps/air_quality/air_quality.img
+ [user@IsMyLaptop:~/src/air_quality]$ newt load air_q
+ Loading app image into slot 1 ...
+
+Then run ``telnet localhost 19021`` to start the RTT Console.
.. code-block:: console
@@ -654,17 +712,17 @@ And here is the source for the driver:
return 0;
}
-And your modified main() for senseair driver init.
+And your modified ``mynewt_main()`` for senseair driver init.
.. code-block:: c
int
- main(int argc, char **argv)
+ mynewt_main(int argc, char **argv)
{
....
senseair_init(0);
....
- }
+ }
You can see from the code that you are using the HAL interface to open a UART
port, and using OS semaphore as a way of blocking the task when waiting for
read response to come back from the sensor.
@@ -690,16 +748,16 @@ Everything is wired and you're ready to go! Build and
load your new app:
.. code-block:: console
- $ newt build air_q
+ [user@IsMyLaptop:~/src/air_quality]$ newt build air_q
Building target targets/air_q
Compiling apps/air_quality/src/main.c
Archiving apps_air_quality.a
- Linking myproj/bin/targets/air_q/app/apps/air_quality/air_quality.elf
+ Linking
/home/user/src/air_quality/bin/targets/air_q/app/apps/air_quality/air_quality.elf
Target successfully built: targets/air_q
- $ newt create-image air_q 1.0.0
- App image succesfully generated:
myproj/bin/targets/air_q/app/apps/air_quality/air_quality.img
- $ newt load air_q
- Loading app image into slot 1
+ [user@IsMyLaptop:~/src/air_quality]$ newt create-image air_q 1.0.0
+ App image succesfully generated:
/home/user/src/air_quality/bin/targets/air_q/app/apps/air_quality/air_quality.img
+ [user@IsMyLaptop:~/src/air_quality]$ newt load air_q
+ Loading app image into slot 1 ...
Now, you should be able to connect to your serial port and read values:
