c7b5b3c419
In order to bring consistency in-tree, migrate all samples to the use
the new prefix <zephyr/...>. Note that the conversion has been scripted:
```python
from pathlib import Path
import re
EXTENSIONS = ("c", "h", "cpp", "rst")
for p in Path(".").glob("samples/**/*"):
if not p.is_file() or p.suffix and p.suffix[1:] not in EXTENSIONS:
continue
content = ""
with open(p) as f:
for line in f:
m = re.match(r"^(.*)#include <(.*)>(.*)$", line)
if (m and
not m.group(2).startswith("zephyr/") and
(Path(".") / "include" / "zephyr" / m.group(2)).exists()):
content += (
m.group(1) +
"#include <zephyr/" + m.group(2) +">" +
m.group(3) + "\n"
)
else:
content += line
with open(p, "w") as f:
f.write(content)
```
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
|
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|---|---|---|
| .. | ||
| boards | ||
| src | ||
| CMakeLists.txt | ||
| prj.conf | ||
| README.rst | ||
| sample.yaml | ||
.. _ina219:
INA219 Bidirectional Power/Current Monitor
##########################################
Overview
********
This sample application measures shunt voltage, bus voltage, power and current
every 2 seconds and prints them to console.
The calibration/configuration parameters can be set in the devicetree file.
References
**********
- `INA219 sensor <https://www.ti.com/product/INA219>`_
Wiring
******
The supply voltage of the INA219 can be in the 3V to 5.5V range.
The common mode voltage of the measured bus can be in the 0V to 26V range.
Building and Running
********************
.. zephyr-app-commands::
:zephyr-app: samples/sensor/ina219
:board: blackpill_f411ce
:goals: build flash
Sample Output
=============
When monitoring a 3.3 V bus with a 0.1 Ohm shunt resistor
you should get a similar output as below, repeated every 2 seconds:
.. code-block:: console
Shunt: 0.001570 [V] -- Bus: 3.224000 [V] -- Power: 0.504000 [W] -- Current: 0.157000 [A]
A negative sign indicates current flowing in reverse direction:
.. code-block:: console
Shunt: -0.001560 [V] -- Bus: 3.224000 [V] -- Power: 0.502000 [W] -- Current: -0.156000 [A]