From 66b5076208f98e78b6dde6bf923b20980ced6b9e Mon Sep 17 00:00:00 2001
From: Benji <46675043+BenjiU@users.noreply.github.com>
Date: Fri, 24 Jan 2020 14:21:38 +0100
Subject: [PATCH] Adding support for 1wire sensors DS18S20 and co (#80)
* Create ds18b.py
* Update and rename pi_mqtt_gpio/module/ds18b.py to pi_mqtt_gpio/modules/ds18b.py
* testing DS18B
* add config example
* Update README.md
Adding ds18b sensor module documentation and example.
* Update README.md
* Delete server.py
* accidently deleted server.py
* fix after testing
Co-authored-by: Ellis Percival <github.com@failcode.co.uk>
---
README.md | 12 +++++++++++
config.example.yml | 14 ++++++++++--
pi_mqtt_gpio/modules/ds18b.py | 40 +++++++++++++++++++++++++++++++++++
3 files changed, 64 insertions(+), 2 deletions(-)
create mode 100644 pi_mqtt_gpio/modules/ds18b.py
diff --git a/README.md b/README.md
index 88703b1..5492f95 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,7 @@ Sensors
- LM75 i2c temperature sensor (`lm75`)
- DHT11 DHT22 AM2302 temperature/humidity sensor (`dht22`)
- BH1750 light level sensor (`bh1750`)
+- DS18S20, DS1822, DS18B20, DS1825, DS28EA00, MAX31850K one-wire temperature sensors: (`ds18b`)
Installation
------------
@@ -148,6 +149,17 @@ sensor_inputs:
interval: 10
digits: 2
+sensor_modules:
+ - name: ds18b22
+ module: ds18b
+ type: DS18S20
+ address: 000803702e49
+
+sensor_inputs:
+ - name: ds18b22
+ module: ds18b22
+ interval: 60
+ digits: 2
```
#### SSL/TLS
diff --git a/config.example.yml b/config.example.yml
index 9fcc900..156bf83 100644
--- a/config.example.yml
+++ b/config.example.yml
@@ -24,6 +24,11 @@ sensor_modules:
i2c_bus_num: 1
chip_addr: 0x48
+ - name: ds18b22
+ module: ds18b
+ type: DS18S20
+ address: 000803702e49
+
digital_inputs:
- name: button
module: raspberrypi
@@ -57,7 +62,12 @@ digital_outputs:
off_payload: "OFF"
sensor_inputs:
- - name: temperature
+ - name: temp_lm75
module: lm75
interval: 15
- digits: 4
\ No newline at end of file
+ digits: 4
+
+ - name: temp_dsb18
+ module: ds18b22
+ interval: 10
+ digits: 2
diff --git a/pi_mqtt_gpio/modules/ds18b.py b/pi_mqtt_gpio/modules/ds18b.py
new file mode 100644
index 0000000..5a47f53
--- /dev/null
+++ b/pi_mqtt_gpio/modules/ds18b.py
@@ -0,0 +1,40 @@
+from pi_mqtt_gpio.modules import GenericSensor
+
+REQUIREMENTS = ("w1thermsensor",)
+ALLOWED_TYPES = ["DS18S20", "DS1822", "DS18B20", "DS1825", "DS28EA00", "MAX31850K"]
+CONFIG_SCHEMA = {
+ "address": dict(type="string", required=True, empty=False),
+ "type": dict(
+ type="string", required=True, empty=False, allowed=ALLOWED_TYPES + list(map(str.lower, ALLOWED_TYPES))
+ ),
+}
+
+class Sensor(GenericSensor):
+ """
+ Implementation of Sensor class for the one wire temperature sensors. DS18B etc.
+ """
+
+ def __init__(self, config):
+ from w1thermsensor import W1ThermSensor
+
+ sensor_config_type = config["type"]
+
+ #get the sensor type mapping
+ self.sensor_type = None
+ for w1_sensor_type, w1_sensor_name in W1ThermSensor.TYPE_NAMES.items():
+ if w1_sensor_name.lower() == sensor_config_type.lower():
+ self.sensor_type = w1_sensor_type
+
+ # initialization failed
+ if self.sensor_type is None:
+ raise Exception("Supported sensor types: " + str(W1ThermSensor.TYPE_NAMES.values()))
+
+ self.sensor = W1ThermSensor(self.sensor_type, config["address"].lower())
+
+ def setup_sensor(self, config):
+ return True # nothing to do here
+
+ def get_value(self, config):
+ """get the temperature value from the sensor"""
+ temperature = self.sensor.get_temperature()
+ return temperature
--
GitLab