will opensprinkler still run without internet

#Will opensprinkler still run without internet how to
#Will opensprinkler still run without internet install
#Will opensprinkler still run without internet serial
#Will opensprinkler still run without internet code
#Will opensprinkler still run without internet password

In most cases, you will probably be modifying the latter. solenoid Ethernet, LCD controls etc.), and a scheduling program, which implements a scheduling algorithm and maintains schedule data.

#Will opensprinkler still run without internet code

More circuit design notes can be found in this blog post.Ī: The OpenSprinkler code consists of two components: an OpenSprinkler library, which provides functions to interface with the hardware (e.g. This makes a lot of sense because WiFi repeaters are inexpensive (the cheapest options are $20-$30), and it significantly reduces the code on the controller side, thus improving it robustness.

#Will opensprinkler still run without internet password

This way, the WiFi password and security options will be handled by the repeater or bridge, so the controller does not have to deal with them at all. However, you can provide the controller with wireless connectivity by using WiFi repeater or bridge. Q: Why is there not a built-in WiFi chip on the controller?Ī: As I explained in this page, this is mainly due to the cost of adding a WiFi chip and the lack of robust open-source WiFi solutions currently. It is also available at Adafruit and Sparkfun. The external DS1307 RTC module is available from Rayshobby Shop.

On v1.2u, the VIN pin is located on the upper-left corner of the PCB, next to the indicator LED.

Instead, use the pins in the main pinout area. Do not use this pin header because there is an error in its design.

On v1.1, there is an RTC breakout pin header.

Please check the schematic to identify pads that are connected to the VIN line. Note that you must use the VIN(+5V) line on the controller: the VCC line on the controller is +3.3V and will not work for the DS1307 RTC. For previous versions of OpenSprinkler hardware, you can add an external RTC module by connecting the following pins (from RTC module to controller): SDA->SDA, SCL->SCL, VCC->VIN(+5V), GND->GND. OpenSprinkler hardware 1.4 or above has built-in RTC and backup battery, and the RTC option is turned on by default. RTC allows time keeping even when the controller is offline.

#Will opensprinkler still run without internet how to

Q: How to add an external Real-Time Clock (RTC) module?Ī: RTC (DS1307) support has been added in code since firmware 1.7. The positive lead of the diode should go to the common wire, and the negative lead should go to each individual station wire. However, note that if the DC devices you are driving are inductive load (such as DC valves), you need to solder additional protecting (flyback) diodes, one per station. We recommend MPSA14, a common NPN Darlington transistor. This can be done by replacing the traics (i.e. See the blog post here for an example.Ī potentially simpler and cheaper option is to use OpenSprinkler to directly drive DC devices. The basic idea is that OpenSprinkler will control the relays, which in turn control DC devices. The simplest is probably to use a relay board, which you can get from Amazon, eBay and a variety of places. Q: How to use OpenSprinkler to interface with DC devices?Ī: There are two solutions. The stock MOVs that we offer are of type 07D560K.

You can solder MOVs by following the picture below: each MOV (blue colored) should be inserted across the top and bottom holes next to every triac. The surface mount versions (including 1.4s, 2.0s, and zone expansion boards) currently have PCB holes designed to fit one MOV per station. MOVs are useful for protecting the controller from impulse high voltages such as lightning.

#Will opensprinkler still run without internet install

There is no need to install MOVs for fully assembled OpenSprinkler (2.1 or above). For earlier hardware versions, please check this blog post.Ī: From OpenSprinkler 2.1, the fully assembled OpenSprinkler has built-in bidirectional transient voltage suppressor (TVS). Q: Can I power a USB WiFi adapter (or other USB devices) through OpenSprinkler?Ī: This is supported by default from hardware versions 1.42u and 2.0s. Also, if not using the RFM12B transceiver, digital pins D2 and D10 are free in all hardware versions. Note that Arduino analog pins can also be used as digital pins.

#Will opensprinkler still run without internet serial

Hardware v2.0s: (I2C) SDA, SCL, analog A5, A6, A7, serial TXD, RXD, interrupts INT0, INT2, digital D14, D15.

Hardware v1.3u: (I2C) SDA, SCL, analog A1, A2, A3.

Hardware v1.2u: (I2C) SDA, SCL, digital D2, D3, analog A1.

Hardware v1.1: TXD, RXD, (SPI) SCK, MOSI, MISO, (I2C) SDA, SCL, digital D3 and D9.

Hardware v1.0: TXD, RXD, (SPI) SCK, MOSI, MISO, (I2C) SDA, SCL, digital D3.

Please check the PCB image of each version, and the available pins are all marked in the pinout area. Q: What pins are available for connecting to external sensors and/or circuits?Ī: The available pins depend on the particular hardware version.