OctoPrint for the Seeed Studio reTerminal – Live Blog – Day 0

Hey Folks….

This will be my first live blog, where I’ll be looking at modifying the awesome OctoPrint to integrate with the Seeed Studio reTerminal.

I’ll be trying to keep this post updated live as I work my way through the work, so there’ll more than likely be some dead ends and mistakes as I go… But that’s half the fun right!

Note – 15-09-22:

This post is getting a bit too big for its britches! So, I’ve split this post up into Days. You can click through to each day’s development by clicking the day link in the table of contents below;


How it started

A couple of weeks back I got a message from a friend over at Microsoft UK, Chris Jeffrey, who had been contacted by the folks at Seeed Studio about getting OctoPrint up and running on their reTerminal device;

Chris Jeffrey – Senior Cloud Solution Architect at Microsoft

As you can see, Chris didn’t have time to get involved, but very kindly recommended me to the folks at Seeed… Thanks Chris!

Not long after this, Serena Liang over at Seeed contacted me;

Serena Liang Marketing Manager at Seeed Studio

True to Chris’s word, Serena very kindly offerred to send me a to device to get going with.

So thanks very much indeed to Serena and the folks over at Seeed for the device and for involving me in this project!

The Seeed Studio reTerminal

Seeed Studio reTerminal

Before all of this, I hadn’t actually looked at the reTerminal (as evidenced by my comments in the tweet to Chris above), so it was a nice surprise to learn that it’s based on the Raspberry Pi CM4, which is a Compute Module with what boils down to the bare bones of a Raspberry Pi 4.

Raspberry Pi CM4

The official page for the Seeed Studio reTerminal is here.

The specifications for the reTerminal are;

reTerminal Features

  • Integrated modular design with high stability and expandability
  • Powered by Raspberry Pi Compute Module 4 (CM4) with 4GB RAM & 32GB eMMC
  • 5-Inch IPS capacitive multi-touch screen at 1280 x 720 and 293 PPI
  • Wireless connectivity with dual-band 2.4GHz/5GHz Wi-Fi and Bluetooth 5.0 BLE
  • High-speed expansion interface and rich I/O for more expandability
  • Cryptographic co-processor with secure hardware-based key storage
  • Built-in modules such as accelerometer, light sensor, and RTC
  • Gigabit Ethernet Port and Dual USB 2.0 Type-A ports
  • Pre-installed heatsink for higher performance
  • 40-Pin Raspberry Pi compatible header for IoT applications
  • reTerminal is Microsoft Azure Certified
  • Remote management support from partner Mender.io (OTA software updates, configure, troubleshoot, remote terminal access)
  • The best Raspberry Pi device with a 5-Inch multi-touch screen
  • High-performance Raspberry Pi CM4 tablet

Unboxing and first look

My reTerminal arrived a week or so after speaking with Serena, so I of course got it out of the box and had a brief look;

Seeed Studio reTerminal

At this point I set up a special IoTeaLive show with the awesome Cliff Agius and Maria-Anastasia Moustaka to have a look at it live!

You can watch the show back on YouTube right here;

IoTeaLive – Seeed Studio reTerminal

OctoPrint and OctoPi

For this work, I’ll be looking at open source projects. I’ll of course be looking at OctoPrint, which is where the bulk of the work will be happenning I guess.

OctoPrint is an open source project which allows for the remote control and monitoring of 3d Printers such as the Ender or the Prusa line of printers.

I’ll also be looking at the excellent OctoPi project, which is an image / set of scripts, which target OctoPrint specifically.

Among other things, OctoPi makes use of the Raspberry Pi Camera Module to enable a remote view of the 3d Printing Process

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