Weather station inside birdhouse

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Joined: Thursday 20 August 2015 22:53
Target OS: Raspberry Pi
Domoticz version: beta
Location: The Netherlands

Weather station inside birdhouse

Post by cyberclwn » Monday 12 March 2018 19:09


I think i'd better continue the post about my "bird house" here.
(From the Hardware pron pics thread.)

The base is a Wemos D1 mini (ESP8266 based) with:
  • BME280 Temp/ Hum/ Press sensor
  • BH1750 Lux sensor
  • 2x 160mW / 5V solarpanel (with a diode per panel) for charging
  • TP4056 with battery-protection (6 connections: 2x IN, 2x OUT and 2x BATT)
  • Wemos D1 mini proto board
  • 100k resistor
  • 18650 2200mAh batterycell
  • some headers
The schematics are "borrowed" from ... r-Station/
To monitor the battery power i added the 100k resistor between the +5v (connection of battery to Wemos D1) and A0. Don't know on what website i found that on.

On the Wemos D1 mini there is (a recent) ESPEasy.
It has 5 devices configured:
  • BME280 - I2C
  • BH1750 - I2C
  • Analog Input
  • Generic - Dummy 1 (%)
  • Generic - Dummy 2 (Vcc)
The two environment-sensor are send to the respective idx's on Domoticz.
For the calculations the Dummy devices are needed.

In the rules section i have these calculations:

Code: Select all

On <name_of_analog_device>#Analog do
TaskValueSet 4,1,([<name_of_analog_device>#Analog]/966)*100
TaskValueSet 5,1,([<name_of_analog_device>#Analog]*4.5)/1024
Where you should change the "<name_of_analog_device>" to, well, the name of the analog device, as on device tab.
And also check if the 4th device is the % one, and 5th is Vcc one.
Send the 4th device, the batterylevel, to a dummy device in domoticz that shows %,
And same for the 5th, the Volt one.

The 966 is what the analog-device shows as output when the fully charged battery is connected to the Wemos.
The 4.5 is when i needed to get the 966 to 4.24V, which i measured from the battery with a multi-meter.

The Wemos goes into a deep sleep after the sensors are read, for 5minutes.
(don't forget the extra connection between GPIO16 (D0) and RST)

I hope i mentionend everything here. If something is not clear, let me know :)
3xPi 2B (Domoticz "live", Domoticz "sandbox", PhotoFrame)
RFXCom433(E), KaKu, Oregon Scientific, Keyes 2-relay, Logitech Media Server, MiLight, Smartwares heating controller(2x), IR Send/Receive, Keyes PIR, XH-M131 DuskSensor, DHT22/11

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