![]() The YoctoHub-Ethernet and the Yocto-Relay are hidden in the corner of the control panel In this way, it is possible to drive the system from a smartphone on the local network, using the WiFi network. We therefore plug the Yocto-Relay on a YoctoHub-Ethernet to make it available on the local network. Of course, we don't connect a cable from the smartphone to the relay each time the pool needs to be opened. A third command, "Release", is required to enable the key switch again when needed. ![]() To close the pool, you need to set relay 1 to state B (disable key) and relay 2 to state B (close pool). To open the pool, you have to setup relay 1 to state B (disable key) and relay 2 to state A (open pool). In this state, the key switch is not connected to the system anymore. With this cabling, it is possible to disconnect the key switch by switching the relay 1 to state B, and to send 24V to the desired input of the pool cover controller using relay 2. The relay 2 outputs are connected in parallel to the key switch. This is what we will implement here.Īs shown in the schema above, the 24V source goes directly to the relay 1 and is directed either to the key switch (state A) or to the relay 2 input (state B). The first relay is used to disable the key switch, and the second one is used to send a specific command to the control electronics. The intermediate solution is to use a Yocto-Relay which includes two relays. But this requires an always-on computer to monitor the key switch position and to switch the relay accordingly. This can be solved by using a Yocto-Maxi-IO to the previous solution, to read the position of the key switch, in order to get a complete solution. This is simple and cheap, but does not allow you to open the pool without a smartphone anymore. The simplest is to replace the key switch by a Yocto-PowerRelay. There are several ways to drive this system. So the key switch really only has to switch a 24V source from the "Open" to the "Close" inputs. The electronics automatically detect the end of the operation and stops the motor when needed. When 24V is applied to the "Open" input, the cover starts to open. When 24V is applied to the "Close" input, the cover starts to close. The control electronics works with 24 Volt and has two inputs ("Close" and "Open") which are kept in default state by a pull-down resistor. The control box is installed in a small pool house which also holds the pumps and filter for the swimming pool. The pool cover of this swimming pool is driven by a key switch at the extremity of the garden. This week we will show how to control a system like this using your smartphone. One popular method is the use of an automatic pool cover, but often these systems can only be driven using a mechanical switch. The best way to nip auto cover problems in the bud is to schedule a regular tune-up with a professional.If you own a swimming pool, you have probably implemented a method to save kids from falling into the pool. This rings especially true if your cover is more than three years old. With so many moving parts, issues can arise and components could need replacing. There truly is no substitute for an auto cover! They can also slow down the evaporation process, thus conserving your pool chemicals and saving you money. Automatic pool covers save you loads of time skimming, sweeping, and scrubbing. Unlike manual pool covers, which tear easily and require a good deal of effort to operate, an auto cover gives your pool full coverage at the flip of a switch.
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