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feat(itho-wpu): getsetting support
Action "getsetting" retrieves the value of a setting byi the provided id. Example usage: > ./itho-wpu.py --action getsetting --settingid 1 > 1. Hardware Configuratie: 70 (min: 0, max: 65535, step: 1) > ./itho-wpu.py --action getsetting --settingid 2 > 2. Jaar Inbedrijfstelling: 2010 (min: 2004, max: 2099, step: 1)
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@ -99,6 +99,12 @@ See the [pislave](https://github.com/ootjersb/pislave#wiring) project
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...
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```
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* Retrieve a single setting from the WPU
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```
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# ./itho-wpu.py --action getsetting --settingid 1
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1. Hardware Configuratie: 70 (min: 0, max: 65535, step: 1)
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```
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# Exporting measurements
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## InfluxDB
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115
itho-wpu.py
115
itho-wpu.py
@ -23,6 +23,7 @@ actions = {
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"getserial": [0x90, 0xE1],
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"getdatatype": [0xA4, 0x00],
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"getdatalog": [0xA4, 0x01],
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"getsetting": [0xA4, 0x10],
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}
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@ -36,6 +37,12 @@ def parse_args():
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choices=actions.keys(),
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help="Execute an action",
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)
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parser.add_argument(
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"--settingid",
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nargs="?",
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type=int,
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help="Setting identifier",
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)
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parser.add_argument(
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"--loglevel",
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nargs="?",
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@ -75,7 +82,7 @@ class IthoWPU:
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self.datatype = self.get("getdatatype")
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self.heatpump_db = db.sqlite("heatpump.sqlite")
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def get(self, action):
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def get(self, action, identifier=None):
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if not self.no_cache:
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response = self.cache.get(action.replace("get", ""))
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if response is not None:
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@ -93,7 +100,7 @@ class IthoWPU:
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if not self.slave_only:
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master = I2CMaster(address=0x41, bus=1, queue=self._q)
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if action:
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response = master.execute_action(action)
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response = master.execute_action(action, identifier)
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logger.debug(f"Response: {response}")
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master.close()
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@ -150,6 +157,22 @@ class IthoWPU:
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return datalog
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return datalog
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def get_setting_by_id(self, settingid):
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listversion = self.get_listversion_from_nodeid()
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parameterlist_version = self.heatpump_db.execute(
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f"SELECT parameterlist FROM versiebeheer WHERE version = {listversion}"
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)[0]["parameterlist"]
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if parameterlist_version is None or not type(parameterlist_version) == int:
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logger.error(f"Parameterlist not found in database for version {listversion}")
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return None
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setting_details = self.heatpump_db.execute(
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"SELECT name, min, max, def, title, description, unit "
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+ f"FROM parameterlijst_v{parameterlist_version} WHERE id = {settingid}"
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)
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if len(setting_details) != 1:
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return None
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return setting_details[0]
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class IthoWPUCache:
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def __init__(self):
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@ -219,6 +242,8 @@ def process_response(action, response, args, wpu):
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from itho_export import export_to_influxdb
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export_to_influxdb(action, measurements)
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elif action == "getsetting":
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process_setting(response, wpu)
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elif action == "getnodeid":
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process_nodeid(response)
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elif action == "getserial":
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@ -272,6 +297,48 @@ def process_datalog(response, wpu):
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return measurements
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def parse_setting(response, wpu):
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message = response[5:]
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settingid = int(message[17], 0)
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setting = wpu.get_setting_by_id(settingid)
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if setting is None:
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logger.error(f"Setting '{settingid}' is invalid")
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return
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datatype = message[16]
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value = format_datatype(setting["name"], message[0:4], datatype)
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minimum = format_datatype(setting["name"], message[4:8], datatype)
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maximum = format_datatype(setting["name"], message[8:12], datatype)
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step = format_datatype(setting["name"], message[12:16], datatype)
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return value, minimum, maximum, step
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def process_setting(response, wpu):
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message = response[5:]
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settingid = int(message[17], 0)
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setting = wpu.get_setting_by_id(settingid)
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if setting is None:
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logger.error(f"Setting '{settingid}' is invalid")
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return
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value, minimum, maximum, step = parse_setting(response, wpu)
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logger.info(
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"{}. {}{}: {} (min: {}, max: {}, step: {})".format(
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settingid,
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setting["title"].title(),
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f' ({setting["unit"]})' if setting["unit"] is not None else "",
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value,
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minimum,
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maximum,
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step,
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)
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)
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def format_datatype(name, m, dt):
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"""
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Transform a list of bytes to a readable number based on the datatype.
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@ -288,14 +355,46 @@ def format_datatype(name, m, dt):
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if dt == 0x0 or dt == 0xC:
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num = int(m[-1], 0)
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elif dt == 0x1:
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num = round(int(m[-1], 0) / 10, 1)
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elif dt == 0x2:
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num = round(int(m[-1], 0) / 100, 2)
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elif dt == 0x10:
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num = (int(m[-2], 0) << 8) + int(m[-1], 0)
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elif dt == 0x12:
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num = round((int(m[-2], 0) << 8) + int(m[-1], 0) / 100, 2)
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elif dt == 0x13:
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num = round((int(m[-2], 0) << 8) + int(m[-1], 0) / 1000, 3)
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elif dt == 0x14:
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num = round((int(m[-2], 0) << 8) + int(m[-1], 0) / 10000, 4)
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elif dt == 0x80:
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num = int(m[-1], 0)
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if num >= 128:
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num -= 256
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elif dt == 0x81:
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num = int(m[-1], 0)
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if num >= 128:
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num -= 256
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num = round(num / 10, 1)
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elif dt == 0x82:
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num = int(m[-1], 0)
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if num >= 128:
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num -= 256
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num = round(num / 100, 2)
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elif dt == 0x8F:
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num = int(m[-1], 0)
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if num >= 128:
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num -= 256
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num = round(num / 1000, 3)
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elif dt == 0x90:
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num = (int(m[-2], 0) << 8) + int(m[-1], 0)
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if num >= 32768:
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num -= 65536
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elif dt == 0x91:
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num = (int(m[-2], 0) << 8) + int(m[-1], 0)
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if num >= 32768:
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num -= 65536
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num = round(num / 10, 2)
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elif dt == 0x92:
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num = (int(m[-2], 0) << 8) + int(m[-1], 0)
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if num >= 32768:
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@ -308,7 +407,7 @@ def format_datatype(name, m, dt):
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return num
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if __name__ == "__main__":
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def main():
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args = parse_args()
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if args.loglevel:
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@ -319,7 +418,15 @@ if __name__ == "__main__":
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logging.Formatter("%(asctime)-15s %(levelname)s: %(message)s")
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)
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if args.action == "getsetting" and args.settingid is None:
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logger.error("`--settingid` is required with `--action getsetting`")
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return
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wpu = IthoWPU(args.master_only, args.slave_only, args.slave_timeout, args.no_cache)
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response = wpu.get(args.action)
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response = wpu.get(args.action, args.settingid)
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if response is not None:
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process_response(args.action, response, args, wpu)
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if __name__ == "__main__":
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main()
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23
itho_i2c.py
23
itho_i2c.py
@ -12,6 +12,7 @@ actions = {
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"getserial": [0x90, 0xE1],
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"getdatatype": [0xA4, 0x00],
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"getdatalog": [0xA4, 0x01],
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"getsetting": [0xA4, 0x10],
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}
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@ -45,9 +46,21 @@ class I2CMaster:
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self.i = I2CRaw(address=address, bus=bus)
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self.queue = queue
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def compose_request(self, action):
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# 0x80 = source, 0x04 = msg_type, 0x00 = length
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request = [0x80] + actions[action] + [0x04, 0x00]
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def compose_request(self, action, identifier):
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if action == "getsetting":
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request = (
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[0x80]
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+ actions[action]
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+ [0x04, 0x13] # read, length
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+ [0x00, 0x00, 0x00, 0x00] # current
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+ [0x00, 0x00, 0x00, 0x00] # min
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+ [0x00, 0x00, 0x00, 0x00] # max
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+ [0x00, 0x00, 0x00, 0x00] # step
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+ [0x00, identifier, 0x00]
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)
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else:
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# 0x80 = source, 0x04 = msg_type, 0x00 = length
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request = [0x80] + actions[action] + [0x04, 0x00]
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request.append(self.calculate_checksum(request))
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return request
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@ -60,8 +73,8 @@ class I2CMaster:
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checksum = 0
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return checksum
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def execute_action(self, action):
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request = self.compose_request(action)
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def execute_action(self, action, identifier):
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request = self.compose_request(action, identifier)
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request_in_hex = [hex(c) for c in request]
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logger.debug(f"Request: {request_in_hex}")
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result = None
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