Coelo

Autor: Levin Schroll

  • How to: Fix BMW 2 series Bluetooth not reconnecting with the phone

    Make sure you are using Bluetooth AVRCP Version 1.5. The newer 1.6 version causes conflicts and prevents automatic reconnecting.

    Bluetooth MAP Version should be set to 1.2.

  • Comparison of Hydroponic Nutrients from various bands

    Plagron

    Hydro A

    NPK (3-0-1)

    Ca 5,9%

    MgO 0,6%

    Hydro B

    NPK (1-3-6)

    MgO 1,4%

    Canna

    Aqua Vega A

    NPK ges (4-4-8)

    Ca ?%

    MgO ?%

    Aqua Vega B

    NPK ges (4-4-8)

    MgO ?%

    Explanation

    Hydro A is focused more on providing nitrogen for vegetative growth, essential for leaf and stem development.

    Hydro B increases phosphorus and potassium for root development, flowering, and overall plant health.

  • Low budget Home Assistant Camera based on the ESP8266 D1 mini with camera board

    ESPHome camera.yaml

    esphome:
  name: camera
  friendly_name: Camera

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

esp32_camera:
  name: Camera
  external_clock:
    pin: GPIO0
    frequency: 20MHz
  i2c_pins:
    sda: GPIO26
    scl: GPIO27
  data_pins: [GPIO5, GPIO18, GPIO19, GPIO21, GPIO36, GPIO39, GPIO34, GPIO35]
  vsync_pin: GPIO25
  href_pin: GPIO23
  pixel_clock_pin: GPIO22
  power_down_pin: GPIO32
  max_framerate: 30 fps

  • Smart Solar Table Lamp

    Smart Solar Table Lamp

    This guid will show you, how you can build your own solar-powered table lamp.

    Electronics

    Here we have a complete li-ion battery charger with 450 – 500 mAh charging current, dimmable by 1-hold-touch and USB type-c.

    Design

    In this section you will learn about der Design of the Lamp.

  • Bato / Duch Bucket Drip Irrigation System

    Bato / Dutch Bucket 11 L
    30 cm x 25 cm x 25 cm (L x B x H)

  • Nautilus

    {"name":"Nautilus___Speaker","ground_dimensions":"1,1,1","controls":"orbit","light":"directional","intensity":"5","ambience":"2","ambient_color":"#ffffff","cam_pos":"1,0,0","initial_zoom":"4","light_pos":"1,1,1","zoom_speed":"20","rotate_scene":"true","rotate_speed":"5","float_height":"-100","bg_color":"linear-gradient(45deg,white,transparent)","bloom_threshold":"5","bloom_strength":"5","fog_density":"5","fog_color":"#000000","model_id":"237","model":{"ID":"237","post_author":"3","post_date":"2024-09-09 20:24:03","post_date_gmt":"2024-09-09 20:24:03","post_content":"","post_title":"Nautilus3inchAnschlussforGLTF","post_excerpt":"","post_status":"inherit","comment_status":"open","ping_status":"closed","post_password":"","post_name":"nautilus3inchanschlussforgltf-4","to_ping":"","pinged":"","post_modified":"2024-09-09 20:24:03","post_modified_gmt":"2024-09-09 20:24:03","post_content_filtered":"","post_parent":"0","guid":"https:\/\/coelo.org\/wp-content\/uploads\/2024\/09\/Nautilus3inchAnschlussforGLTF-3.glb","menu_order":"0","post_type":"attachment","post_mime_type":"application\/octet-stream","comment_count":"0"}}

    This is a 2.1 Speaker system.

  • The Kratky Method

    Overview

    The kratky method is the hydroponic growing method that is the easiest to set up. It does not require any pumps or alike, so it also doesnt produce any noise. Therefore, it is suitable even for the livingroom or bedroom. The perfect set it and forget it method.

    Plants that are good to grow with this method

    • Lettuce
    • Tomato
    • …

  • How to build an inexpensive speaker impedance messuring system

    For building proper speakers it is esssential that you are able to messure their impeadance for a given frequency.

    Required Hardware

    • Ampliefier
    • Power Supply
    • Connectors (JST)

    How to assemble

    Connect power supply to amplifier with connectors.