Creating a small fast robot with pluggable daughter boards.
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A fully open-hardware (OSHWA certified) robot powered by Blockly or ROS2/ MicroRos & SimpleFOC
A ‘grown-up toy’ micro-robot that can be assembled without soldering, with components available worldwide. For serious hobbyists, universities, R&D. Aiming at RVR niche
Capable of driving 2x BLDC motors per driver board ~5A @24v. Stackable for 4x4, 6x6 control.
Using M5stack profile & expansion modules as optional daughter boards.
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Portable Network Graphics (PNG) - 250.55 kB - 05/17/2022 at 11:25 |
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1.jpgOctoCore ESP32 dev boardJPEG Image - 3.63 MB - 04/29/2022 at 09:18 |
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2.jpgOctoCore ESP32 dev boardJPEG Image - 3.75 MB - 04/29/2022 at 09:18 |
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JPEG Image - 45.27 kB - 01/11/2022 at 12:30 |
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JPEG Image - 1.23 MB - 01/11/2022 at 12:30 |
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More 3D work happening.
Got a WebUI installed too, it doesn't yet do anything.
For the first time we got all the major components of Rosmo together and plugged them in.
Various packages are in transit to Italy, Austria, Japan and Brazil so our early adopters can get their hands on them.
We probably need to do some cases.. (and use shorter headers!)
More photos on Twitter
So we decided to do a re-design of the body. This time we reached out to the FreeCAD community and built it in Freecad.
It's almost there, just a few further tweaks. The files are available in our Github repo
The encoders we needed for this project weren't available, so Richard made some:
Ideal for small robots and motor control applications, this small sensor board measures the orientation of a nearby magnet (contactless measurement). It uses an SPI interface for communications, and can return angle values to 14bit precision – that’s 16384 counts per revolution, or 0.022° degrees.
Its tiny 21mm x 17mm dimensions mean it will fit any project, and can be easily mounted even to tiny motors or actuators using the 2.2mm holes.
They are now available on Tindie
Motors move for the first time
Following up on OpenCore1.0 which was just a carrier board for an ESP32-DevC-v4 board.
We've been doing a bit of work on an onboard ESP32. This includes 8x servo's to support a #ottodiy or #stackchan use case
We're calling this board Octocore & the files are here.
The board is intended to support OpenGarden sensors a 1.54" or 2" screen, an HCS404 sensor as well as the M5stack modules
If it works as expected we hope it will be useful to people making small robots
It's untested at present, but thanks to the kind sponsorship of PCBway we have 5x test boards being made soon.
If you want to check out what PCBway offers then check here
@runger111 reports:
Welcome to RosmoESC, v0.1
Startup complete.
Iteration/s: 2003
Iteration/s: 2002
Iteration/s: 2002
That’s from the serial output of a RosmoESC, via USB. So USB is working, the MCU is working, I can program it and its getting power. Was a little work to get the completely custom board up and running in platformIO - needs all kinds of setup stuff you don’t have to think about when using one of the standard pre-selectable boards.
I’ll check the other stuff (SPI sensors, motor drivers!) in the next few days.
So our first Rosmo ESCboards have been produced. Now for the testing..
Samuk
david.bershadsky2
Jaap
Leandro
Salah Missri