Author Archives: admin

dynamic irrigation control

There are no clear specifications or guidelines on how to implement dynamic weather control. In principle, that is OpenSprinkler just the tool, you have to work. That means trying until it fits. Up to now there was a good possibility to dynamically implement a weather-dependent control with the weather service and the adjustment type “carpenter” or “evapotranspiration”. Due to the […]

Example configuration Waveshare and SMT100 Modbus

The Waveshare instructions can be found here: https://www.waveshare.com/wiki/RS485_TO_ETH_(B) In principle, you just have to connect the Waveshare and install the software. Then set it up as follows: Start VirCom, “Device Management”, then the device should appear. Configure the device with “Edit Device”. You can freely choose the port, e.g. 502 or 8899 or completely different. Important: Firmware 2.3.0.(135) or [...]

Example configuration USR-W610 and Truebner SMT100 RS485 Modbus

The USR-W610 has the advantage that it also comes with the right power connection for the sensors. Up to 32 sensors can be connected to a Modbus connection of a USR-W610 (a more powerful power supply unit may be necessary at the maximum expansion level). Currently, only the Truebner SMT100, the Truebner Aquaflex and the Truebner T100 in RS485 Modbus versions supported. [...]

Activate analog sensor configuration

1. Activating the UI The prerequisite is firmware version 2.3.0(x) (or newer) with Analog Sensor API extension. So that you OpenSprinkler To use the analog sensor configuration, the UI configuration must be adjusted. Please note: There is no manufacturer support (from the USA) for the modified firmware, only via the German support page! a) OpenSprinkler [...]

OpenSprinkler Remote access with OpenThings Cloud (OTC) token

Note Supported from firmware 2.2.0 OpenSprinkler 3.x remote access via OTC tokens. Please note that this is only for OpenSprinkler-Hardware 3.x is available, it is NOT available for OpenSprinkler-Hardware 2.x or OpenSprinkler Pi (NEW with firmware 2.3.1(161+) also with OSPi) / Beagle / Demo. Therefore this article is only for OpenSprinkler 3.x relevant. For OpenSprinkler 3 [...]

Analog sensors - expansion board

Coming soon: The new OpenSprinkler Analog sensor expansion board! Features: 8 analog sensor inputs with the range 0..4V Outputs: 5V and GND for powering the sensors (7 additional 3,5V) Can also be combined with up to 4x zone expanders Maximum ONE analog sensor board per OpenSprinkler 3/3.2 16 bit digital analog to digital converter (2x ADS1115) Compatible e.g. […]

Simultaneous solenoid valves

We are asked the same question over and over again: how many solenoid valves can it handle OpenSprinkler open at the same time. But the answer is always "it depends", because the solenoid valves from different manufacturers have different performance values. I got to the bottom of the matter and did some tests as an example. a) With the OpenSprinkler AC and the […]