Merge pull request #11 from sftman18/add_http_proxy_support

Adding support for TeslaBleHttpProxy

PVCharge.py

@@ -25,8 +25,17 @@
 
 # Initialize classes
 Energy = routines.PowerUsage()
-Car = routines.TeslaCommands()
 Messages = routines.MqttCallbacks()
+if "ENABLE_TESLA_PROXY" in config:
+    if config["ENABLE_TESLA_PROXY"] == "True":
+        logging.debug("Using TeslaProxy")
+        Car = routines.TeslaProxy()
+    else:
+        logging.debug("Using TeslaCommands")
+        Car = routines.TeslaCommands()
+else:
+    logging.debug("Using TeslaCommands")
+    Car = routines.TeslaCommands()
 
 # Control loop variables
 car_is_charging = False

README.md

@@ -4,7 +4,7 @@ An adaptive charging controller for your Tesla, enabling you to direct excess so
 
 ## Requirements
 - <a href="https://www.tesla.com/">Tesla vehicle</a>
-- Configured <a href="https://github.com/teslamotors/vehicle-command">Tesla Vehicle Command SDK</a> environment with <a href="https://github.com/teslamotors/vehicle-command/tree/main/cmd/tesla-control">tesla-control</a> available
+- Configured <a href="https://github.com/teslamotors/vehicle-command">Tesla Vehicle Command SDK</a> environment with <a href="https://github.com/teslamotors/vehicle-command/tree/main/cmd/tesla-control">tesla-control</a> available OR use the <a href="https://github.com/wimaha/TeslaBleHttpProxy">TeslaBleHttpProxy</a> (NEW!)
 - <a href="https://github.com/teslamate-org/teslamate">TeslaMate</a>
 - <a href="https://www.egauge.net">eGauge solar monitoring</a> with a CT on the charger circuit
 - Linux computer with Bluetooth, such as a <a href="https://www.raspberrypi.com/products/raspberry-pi-zero-2-w/">Raspberry Pi Zero 2 W</a>
@@ -27,6 +27,12 @@ tesla-keygen -key-file /home/pi/.local/share/keyrings/private_key.pem create > p
 While in the car, pair with this command:
 tesla-control -ble add-key-request public_key.pem owner cloud_key</pre>
 
+## TeslaBleHttpProxy
+To use TeslaBleHttpProxy (not required if you are using <a href="https://github.com/teslamotors/vehicle-command/tree/main/cmd/tesla-control">tesla-control</a>), please follow the installation & configuration instructions <a href="https://github.com/wimaha/TeslaBleHttpProxy">here</a>
+- Add the PROXY_HOST parameter to your .env file (see example.env)
+- Enable use of the proxy by adding the ENABLE_TESLA_PROXY parameter to your config.toml file (see example_config.toml)<br>
+- Note, when TeslaBleHttpProxy is running it seems to take over local bluetooth hardware.  Please stop the proxy before switching back to the <a href="https://github.com/teslamotors/vehicle-command/tree/main/cmd/tesla-control">tesla-control</a> library.
+
 ## PVCharge Installation
 - Install Python (3.11+) and Git using your package manager<br>
 - Clone the repo <pre>git clone https://github.com/sftman18/PVCharge.git</pre>

example.env

@@ -13,6 +13,9 @@ export TESLA_VIN='Tesla VIN'
 export TESLA_KEY_FILE='private key location, i.e. /home/pi/.local/share/keyrings/private_key.pem'
 TESLA_CONTROL_BIN='Tesla control bin location, i.e. /home/pi/go/bin/tesla-control'
 
+#TeslaBleHttpProxy parameters (optional, enabled in config.toml)
+PROXY_HOST='proxy local ip:8080'
+
 #MQTT parameters
 BROKER="local IP for your MQTT broker"
 PORT="port to use, i.e. 1883"

example_config.toml

@@ -2,6 +2,7 @@
 LOG_FILE = 'PVCharge.log'           # Log file name to use
 LOG_LEVEL = "INFO"                  # Default INFO, change to DEBUG to diagnose issues
 PREVENT_NON_SOLAR_CHARGE = "False"  # Default for after-hours charging, unless changed via MQTT
+ENABLE_TESLA_PROXY = "False"        # Optionally enable TeslaBleHttpProxy (requires additional parameter in .env, and a running proxy)
 
 # MQTT Control topics
 TOPIC_PREVENT_NON_SOLAR_CHARGE =   "topic_base/prevent_non_solar_charge"

routines.py

@@ -5,6 +5,7 @@
 import time
 import logging
 import tomllib
+import requests
 from dotenv import load_dotenv
 from egauge import webapi
 from egauge.webapi.device import Register, Local
@@ -129,6 +130,62 @@ def status_report(self, charge_tesla, charge_delay, sun_up, car_is_charging, new
         return status
 
 
+class TeslaProxy:
+    """Class to send commands to TeslaBleHttpProxy"""
+    def __init__(self):
+        # Load parameters from .env
+        self.tesla_vin = os.getenv("TESLA_VIN")
+        self.tesla_proxy_host = os.getenv("PROXY_HOST")
+        # Test for existence of TeslaBleHttpProxy
+        if self.tesla_proxy_host == None:
+            logging.critical("PROXY_HOST not configured")
+            logging.critical("Please point to TeslaBleHttpProxy in .env")
+            sys.exit(1)
+        self.tesla_proxy_base_command = self.tesla_proxy_host + "/api/1/vehicles/" + self.tesla_vin + "/command/"
+
+    def set_charge_rate(self, charge_rate):
+        command = self.tesla_proxy_base_command + "set_charging_amps"
+        logging.debug(command)
+        data = {}
+        data["charging_amps"] = charge_rate
+        rc = call_http_post(command, data)
+        time.sleep(5)
+        return rc
+
+    def start_charging(self):
+        command = self.tesla_proxy_base_command + "charge_start"
+        logging.debug(command)
+        data = ""
+        return call_http_post(command, data)
+
+    def stop_charging(self):
+        command = self.tesla_proxy_base_command + "charge_stop"
+        logging.debug(command)
+        data = ""
+        rc = call_http_post(command, data)
+        time.sleep(5)
+        return rc
+
+    def wake(self):
+        command = self.tesla_proxy_base_command + "wake_up"
+        logging.debug(command)
+        data = ""
+        return call_http_post(command, data)
+
+
+def call_http_post(cmd, data):
+    if data == "":
+        r = requests.post(url=cmd, data=data)
+    else:
+        r = requests.post(url=cmd, json=data)
+    if r.status_code == 200:    # good return code
+        result = r.json()
+        logging.debug(result)
+    else:
+        logging.warning(result)
+    return result["response"]["result"]
+
+
 class TeslaCommands:
     """Class to handle commands sent to Tesla Vehicle Command SDK"""
     def __init__(self):
@@ -239,7 +296,13 @@ def __init__(self):
         self.var_topic_teslamate_charge_limit_soc = 0
         self.var_topic_teslamate_state = False
 
-        self.car_cmd = TeslaCommands()
+        if "ENABLE_TESLA_PROXY" in config:
+            if config["ENABLE_TESLA_PROXY"] == "True":
+                self.car_cmd = TeslaProxy()
+            else:
+                self.car_cmd = TeslaCommands()
+        else:
+            self.car_cmd = TeslaCommands()
 
         self.client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2, client_id=self.client_id, protocol=mqtt.MQTTv311,
                                   clean_session=True)