MicroPython on ESP32 with SPIRAM support

[cartere]

loboris, status of the driver?
Any chance of a 'hello world' quick example, recently backed Gameduino 3 kickstarter would love to put Micropython on it.

Status of which driver exactly ?

Gameduino 3 is based on esp8266, isn't it ?

Gameduino 3 is based on esp8266 but would happily replace with an esp32 with psram. Let me clarify I am talking about the eve module. Included it last night in menuconfig but did not see anything in help('modules'). Looking forward to a python library that supports the FT810.

[loboris]

... Let me clarify I am talking about the eve module. Included it last night in menuconfig but did not see anything in help('modules'). Looking forward to a python library that supports the FT810.

EVE module is still in development, I expect to have fully working module in the next couple of weeks...

[OutoftheBOTS_]

@laboris

The link to the wiki on SD card module is now broken and I can't find it in your wiki at all.

[slzatz]

Appears to be there: https://github.com/loboris/MicroPython_ ... ilesystems

[OutoftheBOTS_]

@slzatz thansk

[rdagger]

I have had my robot up and driving around today and now need to start to hook all the peripherals up. I need to workout what pins I will ise for what( I am likely to use them all).

I want to make sure that I am not connecting something to a pin that shouldn't be used.

Can someone confirm that these pins are ok to use.

I assume that I can use pin 0 as a digital IO providing it isn't pulled low during boot???

I assume that I need to leave pin 2, 4, 12, 13, 14, 15 for the SD card in 4 pin mode and not connect anything else to them unless using SD card in SPI mode then fine to use???

Pin 5 is listed as VSPI in ESP32 datsheet but on Wrover scehmatic it isn't shown in blue as 1.8v, I am unsure if it is ok to use???

18, 19, 21, 22, 23, 25, 26, 27 are fine as digital IO pins

32, 33, 34, 35 can be used as analog input pins or digital IO pins.

I am unsure about 36, 39????

I very much assume that I shouldn'y ever connect anything to : SD0, SD1, SD2, SD3, CMD, CLK, 16, 17 as these are all listed in blue as 1.8v for the SPI RAM

Thanks for anyone that can help

It looks like 34 and 35 can only be used as inputs (at least with the standard build).

Pin34&35.PNG (6.24 KiB) Viewed 18056 times

[Roberthh]

GPIO34-39 of a ESP32 device can be used only as input.

[cartere]

After the recent ftp upgrade in place editing from the Atom text editor seems to be working! Thanks loboris!

[ttmetro]

I got a few Lolin32 Pro boards from Wemos.

Some (not all) overheat when plugged into a USB charger. Did others also observe this problem?
Does anyone know the reason of the problem - e.g. is it just the Wemos board or the SPIRAM? Could be those fuses shorting out?

[cartere]

I have five of the Lolin boards that intermittently show the over heat problem. The problem occurs much more frequently with short high quality cables, I have a long cable connected to an extension cable that seems to be immune to causing the problem. This makes me suspicious of either a critical voltage being reached or something breaking down from a high inrush current. It would be interesting if others could confirm.