Elwell

#!/usr/bin/python3

# bulk-read all attached 1-Wire temp sensors
# see https://docs.kernel.org/w1/slaves/w1_therm.html

bus_base = '/sys/devices/w1_bus_master1/'

def get_temp(addr):
    with open(f'{bus_base}/{addr}/temperature', 'r') as t:
        print (addr, int(t.read().strip())/1000)

Elwell

---
esphome:
  name: epever
  friendly_name: epever

esp8266:
  board: d1_mini
  framework:
    version: recommended

Elwell

ESPHome modbus polling of a single phase energy meter

This is my working configuration to poll a http://www.chinaenergymeter.com/1-1-15-dds238-2-zn-s-single-phase-din-rail-type-watt-hour-meter.html (I have the 65A hard wired variant - I've seen postings that the CT clamp version may not be as responsive

I'm using a wemos D1 mini (ESP8266) with a RS485 toTTL module (that's OK at 3.3v). This seems fine using software serial on D1/D2 at a polling rate of every 5s

GOTCHAS

• If the wemos stays connected to home assistant but CAN'T talk to the meter, HA will re-use the last value rather than marking it offline/NaN/unavailable

Elwell

#!/usr/bin/python3

import serial

TX = serial.Serial(port = "/dev/ttyS2", baudrate=9600, timeout=1)
RX = serial.Serial(port = "/dev/ttyS4", baudrate=9600, timeout=1)

while True:
    tx = TX.readline().hex()
    if tx != '':

Elwell

### 264902
mosquitto_pub -h broker-int -r \
-t homeassistant/sensor/ATC_264902_temp/config \
-m '{"device_class": "temperature", 
	 "state_topic": "tele/tasmota_ble/ATC264902", 
	 "name": "ATC_264902 Temperature", 
	 "uniq_id": "ATC_264902_temp", 
	 "unit_of_meas": "°C",
	 "value_template": "{{ value_json.Temperature}}", 
	 "device": { "name": "ATC_264902", "sw_version": "3.1", "identifiers": ["ATC_264902"]}

Elwell

- id: 'whatever'
  alias: Valid SMS for gate
  description: Announces sender of a valid gate trigger
  trigger:
  - platform: mqtt
    topic: twilio/sms
    payload: true
    value_template: '{{ value_json.Gate_Auth }}'
  condition: []
  action:

Elwell

root@zero-1:~# python3
Python 3.7.3 (default, Jul 25 2020, 13:03:44)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import tesserocr
!strcmp(locale, "C"):Error:Assert failed:in file baseapi.cpp, line 209
Segmentation fault

root@zero-1:~# dpkg -l | grep tess
ii  libtesseract4:armhf                    4.0.0-2                             armhf        Tesseract OCR library

Elwell

Slurm RPC version is a bitwise shift as documented at 
https://github.com/SchedMD/slurm/blob/master/src/common/slurm_protocol_common.h

This table is a cheat sheet of recent versions to RPC

Slurm   Int    RPC
--------------------------
23.11.   40.  10240 (DEVEL)
23.02.   39.   9984 (CURRENT)
22.05.   38.   9728 (SUPPORTED)

Elwell

bravo:~ # cat rbh2influx.py
#!/usr/bin/python3

# rbh-report to influx publisher
# Andrew Elwell <Andrew.Elwell@pawsey.org.au>, July 2020
import time
import subprocess
import csv
import requests

Elwell

- alias: 'Cheerlights to GlowOrb'
  trigger:
    platform: mqtt
    topic: cheerlightsRGB
  action:
    service_template: light.turn_on
    data_template:
      brightness_pct: 50
      rgb_color:
        - "{{ trigger.payload[1:3] | int(0,16) }}"