NextThing

IOT Projects

NextThing CHIP and Raspberry Pi Zero

Ramen Junkie 0Comment

Raspberry Pi Zero and Next Thing's CHIPI’ve already briefly discussed my NextThing CHIP computers before. A few weeks ago I was purchasing a Raspberry Pi 3 and found that the store had Pi Zeros in stock as well, so I tossed one on because, hey, $5, and they are apparently hard to find.

These two little devices are pretty similar, but at the same time so different.

Both are small computers, not just microcontrollers like an Arduino, but little Linux machines. Both have GPIO pins, both can be used as a regular “desktop” if you wanted, both cost less than $10… Mostly…

Raspberry Pi ZeroThe cost is where things get tricky, especially for the Raspberry Pi Zero. Upfront, the Pi Zero is only $5, which looks great on paper, and it’s still pretty cheap. That five dollars gets you a small flat circuit board with a few low profile ports on it. Chances are you’ll need a power supply, if you want to be able to configure it at all you’ll also need a way to plug a standard USB hub for keyboard and mouse into a micro USB port. The display out is a mini HDMI port, which you’ll likely also need an adaptor for. The Pi Zero also doesn’t have any sort of case on it. All of this is stuff that you may or may not need, you might have on hand, or, if you’re programming many Zeros, you can reuse the adapters and parts on all of the Pi Zeros you want, once configured.

The point is, after picking up even some cheap accessories, you’re probably looking at closer to $15 for a Pi Zero. Still cheap, just not quite AS cheap.

Next Thing CHIPThe CHIP on the other hand, is $9. It has built in WiFi and Bluetooth, it comes with a little plastic case for the underside of the board, and it comes with an RCA adapter. The RCA isn’t ideal and an HDMI or VGA attachment are both coming (for $10-$15) but the RCA is usable for setting up WiFi easily for SSH or VNC access. It even has built in storage. For $9, you’re pretty much up and running right out of the box. The Pi Zero is actually kind of useless all on it’s lonesome.

That doesn’t necessarily mean the CHIP is better.

Both The Raspberry Pi Zero and Next Thing’s CHIP run an arm based version of Debian (by default, but this could be changed), thus both have a lot of common in terms of what sorts of software can be used. The CHIP however seriously lacks the Raspberry Pi’s strong community. I’ve not been able to find any decent resources for how to even use the GPIO pins, for example. I had hoped to use one of my CHIPs for a project in the garage but I’ve hit some roadblocks.

chipdesktopI’ve actually had lots of roadblocks with the CHIP. Initially they were unstable, requiring a firmware update. I’ve had many strange problems getting software packages to work properly, even when following tutorials put out by others. The closest I’ve come to finishing a project is making a homemade Alexa clone. Even after buying identical parts (Mic and Button really), after trying many fixes and even wiping the thing out and starting from scratch, I still get errors with the Audio about “Period too large”.

Everything being built in is really convenient though. I honestly haven’t come up with any ideas yet for what to do with my Pi Zero. It ends up with some goofy dongles all over it to make it functional and I have 4 full sized Raspberry Pis at my disposal for other projects. I’ve seen an interesting Game Boy emulator build using the Zero I will probably try but so far, it’s pretty much just been running quietly on my workspace counter.

Personally, I think that ultimately it comes down to there is a point where these things become too cheap or small to be useful, at least for my needs. The sorts of projects a smaller board like this may be useful for feel like they would be better suited for an Arduino. Most of the projects I use my Pis for amount to “Hardware VMs”. Single task servers that can easily be repurposed or swapped out (using SD cards).

 

IOT Projects

Fixing my CHIP

Ramen Junkie 0Comment

chiplogoI mentioned getting my CHIPs from NextThing aq bit ago, but I have not really done much with them. I noticed a bit of an issue keeping them powered when I set them up and assumed I had been using a power supply that wasn’t ideal. I believe it was the one off of the Chromecast on the TV, just because it was handy. It turns out, this is not the case, there is actually an issue with the software of the CHIPs that have shipped so far. I don’t beleive it affects all of them but it’s probably a good idea to update anyway.

It’s a pretty simple process, you can review the boot repair process here. The main issue you may have is that it requires you be running Ubuntu (or really just Linux). You can get a live image and load it using a USB drive though, and being familiar with Linux is useful for working with the CHIP itself since, it runs Linux.

I’m already running Ubuntu on my Laptop, so no issues for me there, my issue was actually getting something to short the pins for FEL mode. I didn’t have any breadboard wires handy at the time. I tried a paperclip as suggested but it was too large to stick in the pin holes. Instead I found a piece of wire to strip off. The point is, almost any melat strip would work to conduct between the pins.

You may also want to try flashing the whole image. Details on this process can be found on the NextThing’s website. It’s the same basic process of fixing the boot but you need to do more work yourself instead of just running a pre made fix app.

I’ve been trying to find some good plans and ideas for my CHIPs. There are some good ideas listed here.

I wanted to try turn a USB camera into a Streaming camera, but I can’t locate any of the USB cameras I used to have.

This Web and Bluetooth Sniffing device seemed neat, though once I started looking at it it looks more like it just tracks Wireless APs in the area, I’m more interested in building a network monitor.

This homemade Amazon Echo clone is pretty neat, and seems like an interesting project to work on that involves some hardware set up as well as software.