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p1_exporter.py
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from machine import Pin, UART, I2C, WDT
import network
import socket
import time
import select
from metric import Metric
import re
#import config
import ubinascii
import sys
import json
import uos
# Configuration variable definitions
# These definitions are mainly used to build the HTML configuration form and
# handle the submit action.
CONFIG_VARS = [
{
'fieldset': 'System',
'name': 'tz_offset',
'type': 'number',
'text': 'Timezone Offset Seconds',
'min': -43200,
'max': 43200,
'default': 3600,
},
{
'fieldset': 'System',
'name': 'enable_wdt',
'type': 'checkbox',
'text': 'Enable Watchdog Timer',
'default': True,
},
{
'fieldset': 'WiFi',
'name': 'ap',
'type': 'checkbox',
'text': 'WiFi Access Point Mode',
'default': True,
},
{
'fieldset': 'WiFi',
'name': 'ssid',
'type': 'text',
'text': 'WiFi SSID',
'default': 'p1exporter',
},
{
'fieldset': 'WiFi',
'name': 'password',
'type': 'password',
'text': 'WiFi Password',
'default': 'p1exporter',
},
{
'fieldset': 'UART',
'name': 'uart_no',
'type': 'radio',
'default': 1,
'selections': [
{
'id': 'uart0',
'text': 'UART 0',
'value': '0',
},
{
'id': 'uart1',
'text': 'UART 1',
'value': '1',
},
],
},
{
'fieldset': 'UART',
'name': 'uart_tx_gpio',
'type': 'number',
'text': 'UART TX GPIO',
'min': 0,
'max': 28,
'default': 4,
},
{
'fieldset': 'UART',
'name': 'uart_rx_gpio',
'type': 'number',
'text': 'UART RX GPIO',
'min': 0,
'max': 28,
'default': 5,
},
{
'fieldset': 'UART',
'name': 'uart_baudrate',
'type': 'number',
'text': 'UART Baudrate',
'min': 300,
'max': 115200,
'default': 115200,
},
{
'fieldset': 'UART',
'name': 'uart_bits',
'type': 'radio',
'default': 8,
'selections': [
{
'id': 'uart_bits7',
'text': 'UART 7 Bits',
'value': '7',
},
{
'id': 'uart_bits8',
'text': 'UART 8 Bits',
'value': '8',
},
],
},
{
'fieldset': 'OLED',
'name': 'oled_enable',
'type': 'checkbox',
'text': 'Enable OLED',
'default': False,
},
{
'fieldset': 'OLED',
'name': 'oled_i2c_no',
'type': 'radio',
'default': 0,
'selections': [
{
'id': 'i2c0',
'text': 'I2C 0',
'value': '0',
},
{
'id': 'i2c1',
'text': 'I2C 1',
'value': '1',
},
],
},
{
'fieldset': 'OLED',
'name': 'oled_sda_pin',
'type': 'number',
'text': 'I2C SDA GPIO',
'min': 0,
'max': 28,
'default': 0,
},
{
'fieldset': 'OLED',
'name': 'oled_scl_pin',
'type': 'number',
'text': 'I2C SCL GPIO',
'min': 0,
'max': 28,
'default': 1,
},
{
'fieldset': 'OLED',
'name': 'oled_i2c_freq',
'type': 'number',
'text': 'I2C Frequency',
'min': 1,
'max': 400000,
'default': 400000,
},
]
CONFIG_FILENAME = 'config.json'
starttime = time.ticks_ms()
if time.gmtime(0)[0] != 1970:
raise Exception("Epoch year is not 1970!")
class DummyWDT:
def feed(self):
#print('Feed Watchdog')
pass
wdt = DummyWDT()
def reboot():
global wdt
if type(wdt) == DummyWDT:
wdt = WDT(timeout=1000)
while True:
time.sleep(1)
def save_config():
with open(CONFIG_FILENAME, 'w') as f:
json.dump(config, f)
def set_default_config():
global config
print('Writing default config file')
config = dict()
for var in CONFIG_VARS:
config[var['name']] = var['default']
save_config()
if CONFIG_FILENAME in uos.listdir('/'):
with open(CONFIG_FILENAME, 'r') as f:
config = json.load(f)
else:
set_default_config()
for var in CONFIG_VARS:
if var['name'] not in config:
config[var['name']] = var['default']
print('Config:', config)
if config['oled_enable']:
from ssd1306 import SSD1306_I2C
i2c = I2C(config['oled_i2c_no'], sda=Pin(config['oled_sda_pin']), scl=Pin(config['oled_scl_pin']), freq=config['oled_i2c_freq'])
oled = SSD1306_I2C(128, 64, i2c)
oled.text("P1 Exporter", 0, 0)
oled.text("WiFi connect...", 0, 16)
oled.show()
led = Pin('LED', Pin.OUT)
led.off()
if config['enable_wdt']:
for i in range(0,10):
time.sleep(1)
led.toggle()
print('Enabling Watchdog Timer')
wdt = WDT(timeout=5000)
else:
for i in range(0,4):
time.sleep(1)
led.toggle()
led.off()
sensor_temp = machine.ADC(4)
conversion_factor = 3.3 / (65535)
def wlan_setup_ap():
global wlan
try:
ssid = config['ssid']
password = config['password']
if len(ssid) == 0:
ssid = 'p1exporter'
password = 'p1exporter'
wlan = network.WLAN(network.AP_IF)
wlan.config(essid=ssid, password=password)
wlan.active(True)
while not wlan.active():
wdt.feed()
time.sleep(1)
print('Access point active')
ip, netmask, gateway, dns = wlan.ifconfig()
print("IP:", ip)
print("netmask:", netmask)
print("gateway:", gateway)
print("dns:", dns)
print("essid:", wlan.config('essid'))
print("channel:", wlan.config('channel'))
except Exception as e:
print("*** WiFi ERROR: " + str(e))
time.sleep(1)
def wlan_setup_sta():
global wlan
try:
wlan = network.WLAN(network.STA_IF)
wlan_mac = wlan.config('mac')
print("MAC Address:", ubinascii.hexlify(wlan_mac, ':').decode())
#print("RSSI:", wlan.status('rssi'))
wlan.disconnect()
wlan.active(False)
wdt.feed()
time.sleep(1)
wlan.active(True)
# Scanning for APs
wlan_sec_map = {
0: "OPEN",
1: "WEP",
2: "WPA-PSK",
3: "WPA2-PSK",
4: "WPA/WPA2-PSK"
}
print("Scanning for WiFi networks...")
wdt.feed()
wlans = wlan.scan()
wdt.feed()
for w in wlans:
# (ssid, bssid, channel, RSSI, security, hidden)
#print(w)
security = w[4]
if security in wlan_sec_map:
sec_name = wlan_sec_map[security]
else:
sec_name = "%d" % security
print("%-15s: ch=%-2d RSSI=%3d sec=%-13s hidden=%d" % (w[0].decode(), w[2], w[3], sec_name, w[5]))
wlan.connect(config['ssid'], config['password'])
max_wait = 10
sys.stdout.write('\nWaiting for wifi connection')
while max_wait > 0:
if wlan.status() < 0 or wlan.status() >= 3:
break
max_wait -= 1
sys.stdout.write('.')
wdt.feed()
time.sleep(1)
print('')
if wlan.status() != 3:
raise RuntimeError('Network connection failed. Status=%d' % wlan.status())
else:
status = wlan.ifconfig()
print('Connected: IP=%s' % status[0])
if config['oled_enable']:
oled.text(status[0], 0, 32)
oled.show()
for i in range(0, 3):
led.on()
time.sleep(.1)
led.off()
time.sleep(.1)
except Exception as e:
print("*** WiFi ERROR: " + str(e))
time.sleep(1)
def wlan_setup():
if not config['ap'] and len(config['ssid']) > 0 and len(config['password']) > 0:
wlan_setup_sta()
else:
wlan_setup_ap()
wlan_setup()
# Create a stream poller
poller = select.poll()
s = socket.socket()
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
#s.setblocking(True)
addr = socket.getaddrinfo('0.0.0.0', 80)[0][-1]
s.bind(addr)
s.listen()
poller.register(s, select.POLLIN)
print('Http socket listening on port', addr[1])
http_clients = []
# Raw socket for relaying incoming serial data
raw_server = socket.socket()
raw_server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
raw_server_addr = socket.getaddrinfo('0.0.0.0', 1234)[0][-1]
raw_server.bind(raw_server_addr)
raw_server.listen()
poller.register(raw_server, select.POLLIN)
print('Raw socket listening on port', raw_server_addr[1])
raw_clients = []
# Set up metric for energy
energy = Metric("p1_energy_kwhs", Metric.TYPE_COUNTER, ("type", "direction"))
energy.set_help("The accumulated meter value over all time")
# Set up metric for power
power = Metric("p1_power_watts", Metric.TYPE_GAUGE, ("type", "direction", "phase"))
power.set_help("Momentary power")
# Set up metric for voltage
voltage = Metric("p1_voltage_volts", Metric.TYPE_GAUGE, ("phase"))
voltage.set_help("Incoming voltage from grid")
# Set up metric for current
current = Metric("p1_current_amperes", Metric.TYPE_GAUGE, ("phase"))
current.set_help("Momentary current draw")
# Metric for applicaton uptime
uptime = Metric("p1_uptime_seconds", Metric.TYPE_COUNTER)
uptime.set_help("Uptime of the P1 exporter application")
temperature = Metric("p1_temperature_celcius", Metric.TYPE_GAUGE)
temperature.set_help("The temperature of the SOC")
# Map OBIS to related metric data
obis_map = {
#"0-0:1.0.0": {
# "name": "Datum och tid"
# },
"1-0:1.8.0": {
"name": "Mätarställning Aktiv Energi Uttag.",
"metric": energy,
"labels": ("active", "consume")
},
"1-0:2.8.0": {
"name": "Mätarställning Aktiv Energi Inmatning",
"metric": energy,
"labels": ("active", "produce")
},
"1-0:3.8.0": {
"name": "Mätarställning Reaktiv Energi Uttag",
"metric": energy,
"labels": ("reactive", "consume")
},
"1-0:4.8.0": {
"name": "Mätarställning Reaktiv Energi Inmatning",
"metric": energy,
"labels": ("reactive", "produce")
},
"1-0:1.7.0": {
"name": "Aktiv Effekt Uttag", # Momentan trefaseffekt
"metric": power,
"labels": ("active", "consume","all")
},
"1-0:2.7.0": {
"name": "Aktiv Effekt Inmatning", # Momentan trefaseffekt
"metric": power,
"labels": ("active", "produce","all")
},
"1-0:3.7.0": {
"name": "Reaktiv Effekt Uttag", # Momentan trefaseffekt
"metric": power,
"labels": ("reactive", "consume","all")
},
"1-0:4.7.0": {
"name": "Reaktiv Effekt Inmatning", # Momentan trefaseffekt
"metric": power,
"labels": ("reactive", "produce","all")
},
"1-0:21.7.0": {
"name": "L1 Aktiv Effekt Uttag", # Momentan effekt
"metric": power,
"labels": ("active", "consume", "L1")
},
"1-0:22.7.0": {
"name": "L1 Aktiv Effekt Inmatning", # Momentan effekt
"metric": power,
"labels": ("active", "produce", "L1")
},
"1-0:41.7.0": {
"name": "L2 Aktiv Effekt Uttag", # Momentan effekt
"metric": power,
"labels": ("active", "consume", "L2")
},
"1-0:42.7.0": {
"name": "L2 Aktiv Effekt Inmatning", # Momentan effekt
"metric": power,
"labels": ("active", "produce", "L2")
},
"1-0:61.7.0": {
"name": "L3 Aktiv Effekt Uttag", # Momentan effekt
"metric": power,
"labels": ("active", "consume", "L3")
},
"1-0:62.7.0": {
"name": "L3 Aktiv Effekt Inmatning", # Momentan effekt
"metric": power,
"labels": ("active", "produce", "L3")
},
"1-0:23.7.0": {
"name": "L1 Reaktiv Effekt Uttag", # Momentan effekt
"metric": power,
"labels": ("reactive", "consume", "L1")
},
"1-0:24.7.0": {
"name": "L1 Reaktiv Effekt Inmatning", # Momentan effekt
"metric": power,
"labels": ("reactive", "produce", "L1")
},
"1-0:43.7.0": {
"name": "L2 Reaktiv Effekt Uttag", # Momentan effekt
"metric": power,
"labels": ("reactive", "consume", "L2")
},
"1-0:44.7.0": {
"name": "L2 Reaktiv Effekt Inmatning", # Momentan effekt
"metric": power,
"labels": ("reactive", "produce", "L2")
},
"1-0:63.7.0": {
"name": "L3 Reaktiv Effekt Uttag", # Momentan effekt
"metric": power,
"labels": ("reactive", "consume", "L3")
},
"1-0:64.7.0": {
"name": "L3 Reaktiv Effekt Inmatning", # Momentan effekt
"metric": power,
"labels": ("reactive", "produce", "L3")
},
"1-0:32.7.0": {
"name": "L1 Fasspänning", # Momentant RMS-värde
"metric": voltage,
"labels": ("L1")
},
"1-0:52.7.0": {
"name": "L2 Fasspänning", # Momentant RMS-värde
"metric": voltage,
"labels": ("L2")
},
"1-0:72.7.0": {
"name": "L3 Fasspänning", # Momentant RMS-värde
"metric": voltage,
"labels": ("L3")
},
"1-0:31.7.0": {
"name": "L1 Fasström", # Momentant RMS-värde
"metric": current,
"labels": ("L1")
},
"1-0:51.7.0": {
"name": "L2 Fasström", # Momentant RMS-värde
"metric": current,
"labels": ("L2")
},
"1-0:71.7.0": {
"name": "L3 Fasström", # Momentant RMS-värde
"metric": current,
"labels": ("L3")
}
}
obis_display_order = [
"1-0:1.8.0",
"1-0:2.8.0",
"1-0:3.8.0",
"1-0:4.8.0",
"1-0:1.7.0",
"1-0:2.7.0",
"1-0:3.7.0",
"1-0:4.7.0",
"1-0:21.7.0",
"1-0:22.7.0",
"1-0:41.7.0",
"1-0:42.7.0",
"1-0:61.7.0",
"1-0:62.7.0",
"1-0:23.7.0",
"1-0:24.7.0",
"1-0:43.7.0",
"1-0:44.7.0",
"1-0:63.7.0",
"1-0:64.7.0",
"1-0:32.7.0",
"1-0:52.7.0",
"1-0:72.7.0",
"1-0:31.7.0",
"1-0:51.7.0",
"1-0:71.7.0"
]
def add_raw_client():
try:
cl, addr = raw_server.accept()
cl.setblocking(True)
print('### Raw client connected from', addr)
poller.register(cl, select.POLLIN)
except OSError as e:
cl.close()
return
raw_clients.append(cl)
def remove_raw_client(cl):
print("### Remove raw client")
raw_clients.remove(cl)
poller.unregister(cl)
cl.close()
def add_http_client(cl):
try:
poller.register(cl, select.POLLIN)
except OSError as e:
cl.close()
return
http_clients.append(cl)
print("### connected clients: %d" % len(http_clients))
def remove_http_client(cl):
print("### Remove http client")
http_clients.remove(cl)
print("### connected clients: %d" % len(http_clients))
poller.unregister(cl)
cl.close()
def send_http_header(cl, code, headers=[]):
code2str = {
200: 'OK',
303: 'See Other',
404: 'NOT FOUND',
}
cl.write('HTTP/1.0 %d %s\r\n' % (code, code2str[code]))
#headers.append('Connection: close')
for header in headers:
cl.write(header)
cl.write('\r\n')
cl.write('\r\n')
class HtmlTopNav:
def __init__(self, title):
self.items = []
self.is_active = None
self.title = title
def addMenuItem(self, text, link):
self.items.append({
'text': text,
'link': link,
})
def setActive(self, text):
self.is_active = text
def setTitle(self, title):
self.title = title
def render(self, cl):
cl.write('<div class="topnav">\n')
for item in self.items:
cl.write(' <a %s href="%s">%s</a>\n' % ('class="active"' if item['text'] == self.is_active else '', item['link'], item['text']))
cl.write('<span class="title">%s</span>\n' % self.title)
cl.write('</div>\n')
top_nav = HtmlTopNav('P1 Exporter')
top_nav.addMenuItem('Home', '/')
top_nav.addMenuItem('Config', '/config')
top_nav.addMenuItem('Metrics', '/metrics')
#top_nav.addMenuItem('About', '/about.html')
top_nav.setActive('Home')
def send_html_header(cl, code, headers):
send_http_header(cl, code, headers)
cl.write('<html>\n')
cl.write('<head>\n')
cl.write(' <title>P1 Exporter</title>\n')
cl.write(' <link rel="icon" type="image/x-icon" href="/favicon.ico">\n')
cl.write(' <link rel="stylesheet" href="index.css">')
cl.write('</head>\n')
cl.write('<body>\n')
top_nav.render(cl)
def send_html_trailer(cl):
cl.write('</body></html>\r\n')
cl.close()
def reply_with_error(cl, request, code):
send_http_header(cl, code, ['Content-type: text/plain'])
cl.write(request)
cl.close()
def reply_with_index_page(cl):
top_nav.setActive('Home')
send_html_header(cl, 200, ['Content-type: text/html;charset=utf-8'])
#cl.write('<h1>P1 Exporter</h1>\n')
cl.write('<table id="meter">\n')
cl.write('<tr><th>Beskrivning</th><th>Värde</th><th>Tidsstämpel</th></tr>\n')
for obis in obis_display_order:
obis_spec = obis_map[obis]
value = '-'
ts = '-'
if "metric" in obis_spec:
metric = obis_spec["metric"]
value = metric.value(obis_spec["labels"])
if value is None:
value = '-'
epoch_ms = metric.timestamp(obis_spec["labels"])
if epoch_ms is not None:
utc = time.gmtime(int(epoch_ms / 1000))
ts = '%d-%02d-%02d %02d:%02d:%02dZ' % utc[0:6]
cl.write('<tr><td>%s</td><td>%s</td><td>%s</td></tr>\n' % (obis_spec["name"], value, ts))
cl.write('</table>\n')
send_html_trailer(cl)
#def reply_with_favicon(cl):
# print("### Send favicon")
# if 'favicon.ico' in uos.listdir('/'):
# send_http_header(cl, 200, ['Content-type: image/x-icon'])
# with open('/favicon.ico', 'rb') as f:
# cl.sendall(f.read())
# else:
# send_http_header(404)
# cl.close()
# print('### Done sending favicon')
def reply_with_config_page(cl):
top_nav.setActive('Config')
send_html_header(cl, 200, ['Content-type: text/html;charset=utf-8'])
#cl.write('<h1>P1 Exporter Configuration</h1>\n')
cl.write('<form action="/save_config">\n')
prev_fieldset = None
for input in CONFIG_VARS:
if input['fieldset'] != prev_fieldset:
if prev_fieldset is not None:
cl.write('</fieldset>\n')
cl.write('<fieldset>\n')
cl.write('<legend>%s</legend>\n' % input['fieldset'])
prev_fieldset = input['fieldset']
if input['type'] == 'checkbox':
cl.write('<input name="%s" value="" type="hidden"/>\n' % (input['name']))
cl.write('<input id="%s" name="%s" type="checkbox" %s/>\n' % (input['name'], input['name'], 'checked' if config[input['name']] else ''))
cl.write('<label for="%s">%s</label>\n' % (input['name'], input['text']))
elif input['type'] == 'radio':
for sel in input['selections']:
cl.write('<input id="%s" name="%s" value="%s" type="radio" %s/>\n'
% (sel['id'], input['name'], sel['value'], 'checked' if sel['value'] == str(config[input['name']]) else ''))
cl.write('<label for="%s">%s</label>\n' % (sel['id'], sel['text']))
elif input['type'] == 'number':
cl.write('<label for="%s">%s:</label><br/>\n' % (input['name'], input['text']))
cl.write('<input id="%s" name="%s" value="%s" type="number" min="%d" max="%d"/>\n'
% (input['name'], input['name'], config[input['name']], input['min'], input['max']))
elif input['type'] in {'text', 'password'}:
cl.write('<label for="%s">%s:</label><br/>\n' % (input['name'], input['text']))
cl.write('<input id="%s" name="%s" value="%s" type="%s"/>\n'
% (input['name'], input['name'], config[input['name']], input['type']))
cl.write('<br/>')
cl.write('</fieldset>\n')
cl.write('<input type="reset" value="Reset"><input type="submit" value="Save">\n')
cl.write('</form>\n')
send_html_trailer(cl)
def unescape_form_value(val):
unescaped = ''
val = val.replace('+', ' ')
begin = 0
while True:
pos = val.find('%', begin)
if pos == -1:
break
unescaped += val[begin:pos] + chr(int(val[pos+1:pos+3], 16))
begin = pos + 3
unescaped += val[begin:]
return unescaped
def reply_with_save_config(cl, request):
req = request.decode()
print(req)
send_http_header(cl, 303, ['Location: /', 'Retry-After: 20'])
begin = req.find('?') + 1
end = req.find(' ', begin)
params_str = req[begin:end]
begin = 0
params = dict()
while True:
end = params_str.find('&', begin)
if end == -1:
param = params_str[begin:]
else:
param = params_str[begin:end]
equals = param.find('=')
pname = param[0:equals]
pvalue = param[equals+1:]
print(pname, pvalue)
params[pname] = unescape_form_value(pvalue)
if end == -1:
break
begin = end + 1
for input in CONFIG_VARS:
if input['name'] in params:
config[input['name']] = type(input['default'])(params[input['name']])
print(config)
save_config()
cl.close()
reboot()
def send_openmetrics(cl):
cl.write(uptime.headers())
cl.write(uptime.value_rows())
cl.write("\n")
cl.write(temperature.headers())
cl.write(temperature.value_rows())
cl.write("\n")
value_rows = energy.value_rows()
if len(value_rows) > 0:
cl.write(energy.headers())
cl.write(value_rows)
cl.write("\n")
value_rows = power.value_rows()
if len(value_rows) > 0:
cl.write(power.headers())
cl.write(value_rows)
cl.write("\n")
value_rows = voltage.value_rows()
if len(value_rows) > 0:
cl.write(voltage.headers())
cl.write(value_rows)
cl.write("\n")
value_rows = current.value_rows()
if len(value_rows) > 0:
cl.write(current.headers())
cl.write(value_rows)
cl.write("\n")
def reply_with_openmetrics(cl, wait):
send_http_header(cl, 200, ['Content-type: text/plain'])
if wait:
add_http_client(cl)
else:
send_openmetrics(cl)
cl.close()
def reply_with_file(cl, filename, content_type):
print("### Send file:", filename)
if filename in uos.listdir('/'):
send_http_header(cl, 200, ['Content-type: %s' % content_type])
with open('/%s' % filename, 'rb') as f:
cl.sendall(f.read())
else:
send_http_header(404)
cl.close()
print('### Done sending file')
def process_http_request():
try:
cl, addr = s.accept()
#cl.setblocking(True)
cl.settimeout(2.5)
print('### Http client connected from', addr)
wdt.feed()
request = cl.recv(1024)
wdt.feed()
print(request)
if len(request) == 0:
cl.close()
return
uptime.set_value(time.ticks_diff(time.ticks_ms(), starttime)/1000)
reading = sensor_temp.read_u16() * conversion_factor
temp = 27 - (reading - 0.706)/0.001721
print(temp)
temperature.set_value(temp)
if request.startswith('GET / '):
reply_with_index_page(cl)
elif request.startswith('GET /favicon.ico '):
reply_with_file(cl, 'favicon.ico', 'image/x-icon')
elif request.startswith('GET /config '):
reply_with_config_page(cl)
elif request.startswith('GET /save_config?'):
reply_with_save_config(cl, request)
elif request.startswith('GET /metrics '):
reply_with_openmetrics(cl, False)
elif request.startswith('GET /waitmetrics '):
reply_with_openmetrics(cl, True)
elif request.startswith('GET /index.css '):
reply_with_file(cl, 'index.css', 'text/css')
else:
#print(request)
reply_with_error(cl, request, 404)
except OSError as e:
print('OSError:', e)
cl.close()
print('### Http connection done')
# Enable pull-up on the UART rx pin
#Pin(config['uart_rx_gpio'], Pin.IN, Pin.PULL_UP)
# Set up the UART for receiving P1 data
uart1 = UART(
config['uart_no'],
baudrate=config['uart_baudrate'],
bits=config['uart_bits'],
parity=None,
stop=1,
tx=Pin(config['uart_tx_gpio']),
rx=Pin(config['uart_rx_gpio']),
rxbuf=1024,
invert=UART.INV_RX)
#uart1.write('\nhello\n')
poller.register(uart1, select.POLLIN)
values = dict()
def oled_print_obis(obis, decimals, with_unit, x, y):
global values
if obis in values:
val = values[obis]
txt = ("%." + str(decimals) + "f") % float(val["value"])
if with_unit:
txt += val["unit"]
else:
txt = "N/A"
oled.text(txt, x, y)
def oled_print_three_phase(measurement_code, decimals, row):
obis = "1-0:%02d.7.0" % (measurement_code)
oled_print_obis(obis, decimals, False, 0, row)
obis = "1-0:%02d.7.0" % (measurement_code + 20)
oled_print_obis(obis, decimals, False, 38, row)
obis = "1-0:%02d.7.0" % (measurement_code + 40)
oled_print_obis(obis, decimals, False, 76, row)
oled.text("%s" % (values[obis]["unit"]), 112, row)
def decode_p1_msg(msg):
global values
#print(msg.decode())
line_re = re.compile("[\r\n]")
flag_re = re.compile("^(...)(.)(.*)$")
ts_re = re.compile(r"^(\d\d\d\d)(\d\d)(\d\d)(\d\d)(\d\d)(\d\d).$")
lines = line_re.split(msg.decode())
match = flag_re.match(lines[0])
if not match:
return
led.on()
manufacturer = match.group(1)
speed = match.group(2)
meter_id = match.group(3)
print("manufacturer=", manufacturer)
print("speed=", speed)
print("id=", meter_id)
timestamp = None
for line in lines[1:]:
#print(line)
match = re.match("^([^(]+)\(([^*]+)(\*(.*))?\)$", line)
if match:
obis = match.group(1)
value = match.group(2)
unit = match.group(4)
if unit is None:
unit = ''
if obis == "0-0:1.0.0":
match = ts_re.match("20" + value)
if match:
the_time = tuple(int(el) for el in match.groups())
timestamp = 1000 * (time.mktime(the_time + (0, 0)) - config['tz_offset'])
print(timestamp / 1000)
continue
obis_spec = None
if obis in obis_map:
obis_spec = obis_map[obis]
name = obis_spec['name']
else:
name = obis
print(name + ': ' + value + unit)
values[obis] = {
"value": value,
"unit": unit
}
if obis_spec is not None and "metric" in obis_spec:
metric = obis_spec["metric"]
labels = obis_spec["labels"]
#print(labels)
metric.set_value(value, labels, timestamp)
if config['oled_enable']:
# Clear screen
oled.fill(0)
# Datum och tid
row = 0
row_inc = 8
oled.text(manufacturer + meter_id, 0, row)
row += row_inc
obis = "0-0:1.0.0"
if obis in values:
val = values[obis]
oled.text("%s" % (val["value"]), 0, row)
else:
oled.text("N/A", 0, row)
row += row_inc
# Mätarställning Aktiv/Reaktiv Energi Uttag
oled_print_obis("1-0:1.8.0", 0, True, 0, row)
row += row_inc
oled_print_obis("1-0:3.8.0", 0, True, 0, row)
row += row_inc