MicroPython Forum (Archive)

You need to get the board into DFU mode, and then its just a question of using dfu-util to load micropython. The tools and techniques are identical for my board versus the official pyboard.

https://github.com/micropython/micropyt ... are-Update

- Jon

Here's the parts I use on my boards: 8 MHz crystal - 887-1448-1-ND 6 pF caps (for the 8 MHz crystal) - 1276-2133-1-ND 32.768 KHz Crystal - 535-11899-1-ND 18 pF caps (for the 32 KHz crystal) - 1276-2209-1-ND Digikey and Mouser both have 0 of the 8 MHz crystals, but Newark has them in stock. Regardles...

There is no chance I can share Protel/Altium libraries, because I did the design in Kicad...

The gerber files are here: https://www.dropbox.com/s/3edliahao6nkp ... 2.zip?dl=0

No, other than what my brother mentioned (changing a couple board-level constants since I don't have servo ports, an accelerometer, a user switch, etc), I'm running the stock firmware.

The uCee board (done by my brother) is basically just a stripped down pyboard (no accelerometer or sdcard), with some custom connectors added. The firmware is the stmhal firmware with a customized board definition to only enable the peripjerals which were actually used. Actually, the uCee board doe...

If anyone is looking to buy an Adafruit Feather Huzzah board, digikey has a bunch of them (85 in stock at the time of this post).

http://www.digikey.com/product-search/e ... 28-1530-ND

- jon

It would be much simpler if you show us your code, and then we can look at it and do some form of analysis. I have inverse kinematics code running on MicroPython, and doing a full IK calculation for a 4-legged (3 DOF per leg) robot runs in 4ms. That involves a whole pile of floating point math and t...

The bare metal advantages don't stop there. Linux on a Pi Zero takes the best part of a minute to boot. The Pyboard boots in under 200mS http://forum.micropython.org/viewtopic.php?f=6&t=607 which is a big deal in some applications. Note that Dave and I have been playing with Tiny Core Linux on the ...

I've been using a Kingston 16 GB Class 10 HC U1 uSD card in Roz for quite a while now. Note that I use rshell.py to manage it, so I have USB Mass Storage disabled. Zero issues so far. This is a picture of the card I'm using: https://app.box.com/s/cu9dgw45v0l7e1ni32chpieplh6hkqit This is what I get: ...

I did a blog post yesterday showing how I'm starting to use the range finders on the head for scanning:

http://blog.huv.com/2015/12/roz-obstacle-scanning.html