{"id":2,"date":"2024-12-28T16:03:35","date_gmt":"2024-12-28T16:03:35","guid":{"rendered":"http:\/\/opencistern.com\/?page_id=2"},"modified":"2025-01-02T14:54:12","modified_gmt":"2025-01-02T14:54:12","slug":"home","status":"publish","type":"page","link":"https:\/\/opencistern.com\/en\/","title":{"rendered":"Monitor the water level in your cistern"},"content":{"rendered":"\n<p class=\"is-style-default\" style=\"margin-top:0;margin-right:0;margin-bottom:0;margin-left:0\">Do you have a water cistern that is connected to your domestic water supply or is only used for watering the garden? Then you are probably interested in the water level without having to lift the heavy lid of the cistern every time.<br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Here is the solution<\/h2>\n\n\n\n<p class=\"is-style-default\">OpenCistern checks the level of your cistern using an ESP8266 compatible microcontroller like NodeMCU or Wemos D1 with various possible distance sensors (Ultrasound, ToF). <\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"525\" src=\"http:\/\/opencistern.com\/wp-content\/uploads\/2025\/01\/nodemcu-1.png\" alt=\"\" class=\"wp-image-151\" srcset=\"https:\/\/opencistern.com\/wp-content\/uploads\/2025\/01\/nodemcu-1.png 700w, https:\/\/opencistern.com\/wp-content\/uploads\/2025\/01\/nodemcu-1-300x225.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-medium is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"207\" src=\"http:\/\/opencistern.com\/wp-content\/uploads\/2025\/01\/hcsr04-300x207.png\" alt=\"\" class=\"wp-image-152\" style=\"width:200px\" srcset=\"https:\/\/opencistern.com\/wp-content\/uploads\/2025\/01\/hcsr04-300x207.png 300w, https:\/\/opencistern.com\/wp-content\/uploads\/2025\/01\/hcsr04-768x529.png 768w, https:\/\/opencistern.com\/wp-content\/uploads\/2025\/01\/hcsr04.png 998w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"is-style-default\">There is a selection of different cistern shapes (cylinder, square, horizontal, standing) with calculation of the volume. The measured values are output on a separate website (no Homeautomation central needed), data can be send via MQTT to your own MQTT broker, via HTTP to an own interface or retrieved by JSON. In addition, it is possible to let prepare the data on www.bubux.de<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Supported microcontrollers (at least)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>NodeMCU<\/li>\n\n\n\n<li>Wemos D1 Mini<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Supported distance sensors<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HC-SR04<\/li>\n\n\n\n<li>VL53L0X<\/li>\n\n\n\n<li>VL53L1X<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Supported temperature (humidity) sensors<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DHT22-Sensor<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Supported displays<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>LCD &#8216;1602&#8217;<\/li>\n\n\n\n<li>LCD &#8216;1604, 2004&#8217;<\/li>\n\n\n\n<li>OLED &#8216;SSD 1106, 1306&#8217;<\/li>\n<\/ul>\n\n\n\n<div style=\"height:71px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"is-style-text-annotation has-base-color has-accent-3-background-color has-text-color has-background has-link-color has-xx-large-font-size wp-elements-2e32441c6e7108564535b9e03b8f3948 is-style-text-annotation--1\"><a href=\"http:\/\/opencistern.com\/get_started\/\" data-type=\"page\" data-id=\"62\">Let\u00b4s get started<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Do you have a water cistern that is connected to your domestic water supply or is only used for watering the garden? Then you are probably interested in the water level without having to lift the heavy lid of the cistern every time. Here is the solution OpenCistern checks the level of your cistern using [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/opencistern.com\/en\/wp-json\/wp\/v2\/pages\/2","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opencistern.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/opencistern.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/opencistern.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/opencistern.com\/en\/wp-json\/wp\/v2\/comments?post=2"}],"version-history":[{"count":15,"href":"https:\/\/opencistern.com\/en\/wp-json\/wp\/v2\/pages\/2\/revisions"}],"predecessor-version":[{"id":159,"href":"https:\/\/opencistern.com\/en\/wp-json\/wp\/v2\/pages\/2\/revisions\/159"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/opencistern.com\/en\/wp-json\/wp\/v2\/media\/9"}],"wp:attachment":[{"href":"https:\/\/opencistern.com\/en\/wp-json\/wp\/v2\/media?parent=2"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}