First day with DevTerm A06 |
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First day with DevTerm A06
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I’ve received DevTerm A06 yesterday. AssemblyAssembling it was super easy and fun. It reminded me of plastic models from my childhood. The assembly guide was also helpful. It almost didn’t require any tools to assemble it (except a small Phillips screw driver). The quality of injection runners were so good so I didn’t have to trim them even when I’ve torn them off with my hand. Overall build quality was good. I’ve glued side IO panels not to lose them. This threads helped me a lot solving some mysteries and hard parts (a display assembly, a heat sink, a kapton tape, etc…) 
Devterm cm3 installation experience. including some details of the mistakes I made 中文
[installcm3]
I wrote this in Chinese, and then translated it into English with the Google Translate. If there is anything you don’t understand, please contact me. The original Chinese will be posted at the end.
Install the screen. Find the fixed board and the screen. The front of the fixed board is for the screen, and the back is for the motherboard, printer, battery compartment and other modules , etc. Therefore, after installing the screen, you will install other components on the back of…
DevTerm A06 assembly report DevTerm
I put together my DevTerm A06 last night, and I thought I’d provide a quick report on the few stumbles I had in the hope of benefiting others. Overall the experience was very smooth, though.
First let me recommend the following thread, which contains a very detailed write up on assembling a DevTerm CM3 - I found it after I reached my first point of uncertainty (the wifi antenna), and it gave me the confidence to continue.
I did also run into the first issue that thread mentions: when you go …
And then it booted successfully in the first time. I played well with it for few hours :). SuppliesI bought a pair of button-topped, protected 3500mAh cells. But I think flat-top would’ve been better. It’s a little bit hard to put them in. The estimated battery time is more than 5-6 hours. I’m very impressed. Also I bought 57mm x 40 mm (width, diameter) thermal paper. It was a hard bet. 
DevTerm A06 assembly report DevTerm
Almost everyone in this forum says only the length of the thermal paper, but I only could find vendors that specifies only the diameter in my country.
https://forum.clockworkpi.com/t/devterm-thermal-paper-size-limit/6896/5
This helped me a lot. I bought rolls of 40mm in diameter. It fits well in the tray. I haven’t tried the 45mm one, but I think that it wouldn’t have fit in there.
Some problems
It seems that the trackball misses signals when I move it fast. And also the middle mouse button doesn’t work as a mouse wheel unlike the TrackPoint. This is why I’m going to try Godzil’s keyboard firmware and even considering my own fork. 
DevTerm Keyboard firmware mods DevTerm
During the stream yesterday, I made a couple of comments on how the keyboard/trackball could be improved and I made these changes on my own copy of the DevTerm repository:
The changes are:
Fn + Trackball no longer trigger the "slow movement mote" but allow to use the mouse scroll wheel (only up/down for now, need to find how to set for left/right)
Now to set the trackball speed you use Fn + Left button for normal speed
Fn + Middle button for "slow" speed
Fn + Right button is currently an unu…
The screen doesn’t turn on after waking up from sudo systemctl suspend. SSH session works though. Speakers are great. Its quality is surprisingly good given the small and closed enclosure. However, I can hear statics with a USB-C charger (which is not well-grounded) is plugged in. I can connect a bluetooth keyboard, but it is done with bluetoothctl. Bundled GUI couldn’t handle my keyboard’s pairing process. Also it froze 4-5 times while playing around with it. I thought it was the keyboard connectivity problem since it uses POGO pin. However it wasn’t. The keyboard can actually be hot swapped, and the system actually went unresponsive. I might try to rewrite the SD card first. The thermal printer is somewhat flaky. The feed motor slips a lot. It might be due to the misaligned thermal paper, but it is very sensitive to it. Also it is somewhat weak than I’ve expected, and prints a lot of streaks. I might have a faulty module. 
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The clip at the top doesn’t close well when the extension port cover is opened. edit: My batteries seem to be slightly oversized.
First day with DevTerm A06 DevTerm
I found that it won’t bend without batteries. They might be slightly oversized so it bends the cover. I wish that there were a little bit more clearance on the battery diameters (~1mm?)
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Although these problems, I love this machine. I’m going to have a good end of the year with this. Thanks. |
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