There you go, it’s verified! For those who want to see real actions, check out the Youtube video below.Ĭurrently the OpenSprinkler Pi circuit board doesn’t have screw holes that match those on the Zero. Plug it into the OpenSprinkler Pi circuit board, and insert 24VAC power supply: Voilà, it boots up in under a minute and I can start turning on and off sprinkler valves right away. I then burned a new microSD card (with the latest Raspbian image) and installed the OpenSprinkler firmware. It’s quite easy: just cut the connectors from an existing microUSB cable and USB extension cable (which has a USB A female connector), strip them, solder the four internal wires with matching colors, and use some hot glue and electric tape to fix everything in place. The OTG adapter I ordered hasn’t arrived yet, so I decided to make one myself. Here is a display of three Raspberry Pi’s: version 2 model B, A+, and Zero. ![]() If you are not willing to go through the hassle, you’d be better off staying with Raspberry Pi A+, which is only $20. This means in order to use it with OpenSprinkler Pi, you need to hand solder the pin headers and in order to connect it to a USB WiFi dongle, you need a microUSB to USB adapter, which is commonly known as the OTG (USB On-the-Go) adapter. First, to reduce cost the Zero does not have the 2×20 pin headers pre-soldered, and it doesn’t have a standard size USB connector. But before you decide to dive in, you should be aware of the hidden costs, which can quickly add up. The answer is yes, as the video demo below shows. The main reason for me to get one is to verify if it works well with OpenSprinkler Pi, as several customers have asked me. It’s such an anomaly, because normally things in high demand and so difficult to get would be very pricey, but this is only $5! It took me a while to find it in a locked cabinet, and apparently it’s limited to one board per customer. So I went and purchased one in their Westbury store. A few days ago I was visiting friends in Long Island, New York and discovered that surprisingly I can get the Zero from Micro Center retail stores. I’ve been waiting to get my hands on one for a while. Five dollars for a tiny computer that runs a full Linux system, how amazing is that! Well, since announced, it’s in such high demand that it went out of stock at most online stores. I am sure many of you have heard of it, which is the latest new comer in the Raspberry Pi family, and it has a jaw-dropping price of $5. The first order of business today is Raspberry Pi Zero. So I’ve decided that before the year ends, I have to remedy this by writing a couple of new posts. ![]() ![]() One of the things I haven’t done well recently is regular posting on this blog. My fortune cookie last night said I have recently left many things undone, and at this rate I may never get them done.
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