https://www.photonicsguy.ca/ 2026-04-06T20:35:02+00:00 https://www.photonicsguy.ca/ https://www.photonicsguy.ca/_media/wiki/dokuwiki.svg text/html 2023-12-20T15:30:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/esphome/watermeter?rev=1703086229&do=diff Water meter monitoring Hardware Using a ESP32 with QMC5883L compass module. TBD Accuracy Quite accurate, each interval (max to min to max) from the water meter appears to be 32.5ml, this was confirmed over the course of a few days and about 1.6 m³ of water (about 49 thousand intervals). text/html 2023-12-11T15:56:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/esphome/start?rev=1702310186&do=diff ESPHome Devices * Sensus Water meter integration * Gas meter integration * Vindriktning particulate sensor text/html 2023-12-11T15:47:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.photonicsguy.ca/esphome/vindriktning?rev=1702309669&do=diff Vindriktning Ikea air particulate sensor RX pin on ESP-01S header is pin 5 Serial testing Configure serial port: stty -F /dev/ttyUSB0 speed 9600 cs8 -parenb Value of 250µg/m³: echo -en '\x16\x11\x0b\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x00\x00\xb2' > /dev/ttyUSB0