MicroPython Forum (Archive)

almost ready to send for production: https://github.com/hoihu/projects/tree/master/raspi-hat it ended up with heaps of more stuff: - selectable HAT/raspberry option (you can configure your pyboard to be a HAT or to access a HAT) - RST/DFU switches - UART jumpers / I2C access - Neopixels - EEPROM for...

So this shield is to allow an RPi Hat to be used with a pyboard? Yes. I was thinking it was to allow a pyboard to be used as co-processor with the RPi. That makes sense to me - especially now where the Rpi2's DMA transfer to the SPI bus is not yet working/ported and hence the neopixel support a que...

The pyboard doesn't have any EEPROM, so are you planning on adding an EEPROM to your board? Well I was not precise - My intention is to readout the ID EEPROM of a HAT (it's part of the HAT spec) by one of the Pyboard's I2C buses. So the pyboard acts as master and the HAT's EEPROM as slave. The ID E...

I'm working on a small interface PCB that allows to connect a raspberry HAT (40pin) to be connected to the pyboard. The physical outline is such that a pyboard and a HAT can be mounted to the interface board, side by side (see Screen Shot 2015-12-30 at 00.27.07.png for the general idea. It uses more...

Just curious, what do you mean as OS on the board, which additional features would make uPy qualified as OS? I remarked this because of a presentation by David Beazley (see http://www.dabeaz.com/coroutines/ resp. http://www.dabeaz.com/coroutines/Coroutines.pdf for the slides). In part 7 (slide 110)...

I've placed another pull request that only incorporates the timer / callback and leaving out the ring buffer as it had some issues. The code change is also much less: https://github.com/micropython/micropython/pull/1713 it seems that by using SOF Irqs (start of frame) together with a txComplete call...

If I was going to create a new board, I think that having a board with a focus of low power would be good (perhaps using one of the new STM32L4 MCUs). +1 The L4 series looks promising because of the updated peripherals, opamps etc. It has better flash bank organisation (256 pages of 2 Kbyte) which ...

The movement look really realistic I'm impressed.

So I wonder because you've done the project 2 times right? Using Arduino and uPy.

Which one went smoother? Did you encounter problems in using uPy for such complex applications?

actually if all you want to do is say log a temperature every 30s and open / close a relay depending on the result and perhaps turn an LED on/off to show a status then you don't need any of that fancy stuff. But if you want to do that at 50 locations, then £3 is a lot more attractive than £30! I'm ...

I've placed a pull request:
https://github.com/micropython/micropython/pull/1652