The only thing in abundance right now, new pie boards are everywhere. Unfortunately, the compute models that make them go are still a bit hard to find. Keep refreshing rplocator.com to find one in stock and lets dive right in kicking things off is the raspberry pad 5.. This is a 5 inch ips touchscreen display that runs straight off a raspberry pi compute model 4 and it costs 99 bucks. There are other 5 inch and 7 inch displays for raspberry pis, but the compute module completely changes the game. Here. You dont need funky, hdmi adapters or mounting brackets and space for a giant pi 4 model b. You just pop the compute module on the back and the whole thing is only a little thicker than the ethernet jack. This device is targeted at 3d printing. You could load clipper on it and use it as a main control board. Most 3d printers, like my ender 3v2, have a decent little display, but like this one, its usually not a touch screen and its a lot smaller than 5 inches heck. Using this thing i could even run octoprint directly on it, so i wouldnt even need a separate pie, but its not only for 3d printers. You could integrate this into a custom car head unit for carplay or android auto or put it anywhere. You want a small, fast touch screen. Computer bigtreetech even provides a standalone 3d printed case design for the raspberry pad 5.

So i went ahead and printed it. One site is all screen but flipping it over. You can see all the i o on one side. The 40 gpio pins and screen orientation and brightness controls, then the micro sd and two usb ports, then theres usbc for power, input, hdmi, 2.0 and another usb and on the last side, a gigabit ethernet jack theres, also a boot mode switch and a csi camera port. Hidden on the top edge, the box also includes a usb a to usb c cable and all the screws to mount up the board in different scenarios. Im going to install this little compute module 4 light model, and i just need to line up the board to board connectors and push until it pops in since its a light module. I need a separate micro, sd card and ill stick raspberry, pi os on it. The card goes in the slot over here, but i have to leave it out for now. So i can install the board in the case and to make sure the built in clock can keep time ill. Also install a little 1220 coin cell battery here and before. I put the board in, i got ta do the peel, and now that display looks really shiny too bad itll. Never be this clean again. Now we just need to pop the whole assembly into the shell of the case, making sure the boot mode switch is the first thing i insert since it sticks out from the board a little bit once its popped in.

I can pop on the back cover. Now i could put some screws in but ill put that off for now and just look around at how the case all fits together and its pretty darn precise some 3d printed designs leave a lot more tolerance, but this one is pretty close already. I did notice. I cant press some of the buttons without a tool or a pencil. These screen, brightness controls are just too small for me to comfortably press with my finger or even a fingernail. I loaded raspberry pi os on the microsd card, stuck it in the board, then plugged in power, ethernet and hdmi and booted it up. Just like any other pi. I could see output on my monitor and i could also start using my keyboard and mouse plugged in via usb, but the internal display wasnt active. Yet for that you need to download a special dtb file to the pi from raspberry pis website. I did that using this command, then rebooted, the pi after it booted up the internal screen, was active and working without any other drivers. I unplugged the external hdmi monitor and the pi automatically switched the main screen over to the raspberry pi. The screen itself was surprisingly sharp and has great viewing angles: its not retina or high dpi resolution, but its readable and i didnt have to tweak any settings. The colors are vibrant and, unlike some cheaper pie displays, i can see everything well, even at pretty severe angles.

The touch screen controls all worked great and i didnt need to do any calibration for that. The display brightness controls also work without any extra drivers, though there was a very quiet coil line when i had the display less than full brightness and the screen orientation button. In the middle rotates, the screen 180 degrees, which is handy if you need to mount the raspberry pad in a different orientation due to the port layout, or something like that so yeah better than expected at 99 bucks, plus the cost of a compute nodule its. Not the cheapest touch screen available, but its the best five inch touchscreen ive tested on a raspberry pi speaking of touch screen controllers using the compute module 4. The re terminal is like a more refined version of the raspberry pad 5., its double the price at 195. Bucks, but it also has about double the functionality crammed into a nice molded enclosure. I talked about it a bit last year, but its meant to be an hmi or human machine interface. The idea is, you build a custom interface for it and it can integrate with a process or machine in a factory or display important information that might need to be monitored and acted on. Seeds been selling it for a while now, but its just another example of the tiny but powerful touchscreen computers. You can build with the cm4. The compute module 4 can also make a powerful little network router these days, assuming you dont need more than a gigabit of bandwidth.

Openwrt is being used for routers like the df robot router board and seeds router board, which i covered in my two tiny routers video last year. One additional feature i was hoping for in a custom: router board was integrated, 4g or 5g and wave share delivered with this. This is the 60 dual gigabit ethernet 5g 4g baseboard, and i bought it with this metal enclosure. My plan is to build a custom router with a built in 4g lte modem for backup in case my cable internet goes down once i pop the board out, you can see on the back. It has a coin battery holder for the real time, clock, plus microsd and nano sim card trays flipping it over reveals a ton of functionality. Besides the compute module 4, you can install an m.2 card for 4g or 5g internet. The port side has 2 gigabit ethernet ports, 2 hdmi ports, 2, usb 3 ports and usbc power input back on the top theres, also 2 csi camera connectors and a dsi display, connector 40 pin gpio a boot select switch and some status leds for power activity and Cellular activity lets assemble the router and see what we can do with it first ill pop a compute module 4 on top easy enough, just like all the other boards then ill grab this sierra wireless air prime 4g modem. I havent used this one, yet the other 4g modems ive used are quicktel modems that use mini pci express this modem uses an m.

2b key connector and supposedly delivers cat 12 speeds up to 600 megabits down and 150 up its on the pricier end of 4g modems And i got mine used for about 110 bucks on ebay. The case kit comes with a little 12 volt pwm fan, so i installed that into the outer shell and plugged it into the board, since the 4g card needs a wireless signal and the metal case is really good at blocking wireless signals. I also needed to buy a couple antennas. They thread onto the case here and the tiny little mhf4 connector plugs into the card i just plugged in the main and aux antenna, but theres also an extra port for gps. If i want to use that the case has four antenna holes, so you could add on a gps antenna and even a wi fi antenna if your compute module has wi fi built in but ill leave those other two holes closed for now. Next up, i loaded raspberry pi os onto a micro sd card popped that into the board and booted it up its nice having an hdmi port on the router, and it makes debugging a lot simpler since you can see a display output, even if you cant connect Over the network for some reason and first things: first, the 12 volt pdm fan doesnt actually work as a pdm fan out of the box. It just stays on full blast and at that speed its a little bit loud and annoying.

So i followed the advice on the wave share, wiki and installed the cm4 io fan software and that controls pdm using linuxs hardware sensor controls, which is really nice. I cover how that works more in a blog post on my website, and it works with the fan controller on most compute module 4 boards with peterbium. The fan is almost silent at idle and it just makes a tiny wine, when ramped up during a stress, ng run im going to try to build a custom, open, wrt image for this board, one that can use the 4g modem and both ethernet interfaces, but thatll Be for a future video for now i wanted to see if i could get the 4g modem working at all and also test the ethernet ports to see if running over usb bottlenecks that second port. So i checked the website for the 4g card and after some research it looks like ill actually have to compile the driver for the modem before i can use it so ill. Leave that for the future, video for the ethernet ports i plugged into each one separately and ran an iperf 3 test for the built in port. I was able to get about 140 000 packets per second. I got over 900 megabits per second up and 800 down when testing the full duplex gigabit connection on the second port, the one that uses a usb realtek rtl8153. I could only get about a hundred thousand packets per second with 940 megabits up, but only 200 down when measuring the full duplex performance, so theres.

Definitely a bottleneck on the ethernet port that goes over usb. How much that affects your use of the board will depend on what you want to use it for, just like the seed studios, router board i tested last year, its still fast, but its not going to be able to route at a full gigabit like you could, With the df robot board, if you want to see how i get along with openwrt and the 4g modem on this thing subscribe now, this next device is made by the home automation, startup, a b log in russia, its the rp4 rtc poe, and it has the Most functionality ive ever seen, crammed into a compact din rail computer. This thing has a lot inside it and well get to that in a minute, but from the outside, you can see a bunch of activity leds right on the front, along with a reset button. On the bottom, there are breakouts for power, the dahle, 2 lighting control interface and rs485, just above that is an antenna connector for the wireless zigbee radio, thats built in looking at the top theres, an ethernet port under two usb 2 ports, and that ethernet port also Accepts power and its actually the only way to plug in and power this unit now over on the back theres a din rail mount. So you can install this thing in any standard din rail now getting inside is a little tricky. Everything is friction fit together with snaps, but its a really solid enclosure popping off the front panel theres.

Actually a little wi fi antenna that comes out of the box, disconnected you can connect it and switch the pis internal antenna over to it. If you want, then popping off the back cover you can see on the inside, the pcbs are actually soldered directly to each other, at a 90 degree angle, to save space and wow. There is just not much more room to spare in here theres a giant, copper heatsink on the side, with a pretty thick thermal pad, pressing against the compute modules, processor and flipping it over. You can see the internal antenna connection for the zigbee radio and then, if i jimmy it a bit, i can get the whole assembly to slide out the plastic enclosure. And here it is theres a big sheet of thin copper to dissipate heat. But since the enclosure is plastic, the pine here will probably throttle if you push it for a while, but the heatsink should at least keep the pie going during short bursts of activity. Besides the heatsink, there is a lot going on in this tiny computer on one side: theres the compute module 4 and an integrated real time clock and battery. Then, on the other side, theres an nvme ssd stacked on top of the zigbee radio chip. Next to the ports lets pop off that nvme drive to get a better look at the radio, its an rf star 2652, and it supports both zigbee and bluetooth. Interesting on the board.

Thats mounted at 90 degrees, theres all the poe circuitry for power, and when i popped off the compute model 4, i have expected to see some other feature hiding out underneath, but no just some board traces lets put this thing back together and see. If i can get the seams to be as perfect as they were, when i got it no well its pretty close, though i popped it on my din rail plugged in a cable back to my poe switch and it lit up right away and booted into pios. I logged in over ssh and sure enough its set to boot off the nvme ssd and its a fast but modestly fast, chaosia drive but heres where the story gets a little sad ive been wanting to do a full review and compare this little device in the Whole mega d ecosystem to the home assistant, yellow i tested last year, but when i started testing it, i got an alert. The product page was missing from tindy and i found out its yet another casualty of putins invasion of ukraine since tindy is owned by siemens and theyve stopped all business in russia, tindy removed all russian sellers from its site and andre who makes the a b log Home automation, products is russian, so his store was taken down too. I think this is a brilliant design and just like many other great little devices made by individuals and small startups in russia, i hope putins war doesnt set back the clock so far that we see all these great products and new ideas just completely disappear.

So right now its even harder to get one of these din rail computers than a compute model. Four and so far the home assistant yellow, seems to also be delayed but theres another new board i havent tested yet ken konis, kc, 868 home automation, server. You can go to the link in the description to read up on it, but maybe that board will be available sooner. Who knows speaking of promising projects that might or might not ever be available, ive been tracking, more and more of them. First theres the pocket. A truly modular computer based around the compute module 4.. I hope to get one to test later this year so subscribe for that, but its a really interesting blend of software and snap together, hardware that could make for a very flexible development platform, theres a really cool demo of the pocket on youtube, and i linked to It in the description check that out for more info. I also recently learned the m t reform. An open hardware, laptop funded through crowdsupply, will support the compute module 4 using their new rcm4 adapter. The adapter should also be compatible with pine64, so quartz and i always had my eyes open for cool new retro gaming builds with the cm4 and this month. The newest one is the ps pi compute, which is a special board to adapt to compute module 4 into a psp shell breathing new life into these old devices. And right now it looks like the production of that board is on hold from the chip shortage too.

But itll be great to see if it ever actually launches. If you made it this far in the video youre, probably wanting to know whats coming up next well make sure youre subscribed, because you dont want to miss a video coming up on the raspberry, shake and citizen signs with raspberry pis or my next gpu update thats Right i got this little guy working on the compute module. 4. im also experimenting with discord. Patreon supporters already have access so go check out my patreon. If you want to see more of this stuff and im hoping to get all my github sponsors in there, soon too also check out girling engineering.

https://www.youtube.com/watch?v=a9pUc3dw5wc