WeMos D1 Mini Pro 16MB

[deshipu]

So my board arrived and it indeed is a 4-layer PCB. I will post photos and test results shortly.

[deshipu]

OK, so here are some first simple tests.

I have flashed the latest master of MicroPython and this module, and it seems to work fine (no surprises there).
As you can guess per https://github.com/micropython/micropython/issues/2335, it doesn't actually see 16MB of flash memory. It sees it as 1MB.

Info from port_diag:

Code: Select all

>>> import port_diag
FlashROM:
Flash ID: 1840ef (Vendor: ef Device: 4018)
Flash bootloader data:
Byte @2: 02
Byte @3: 20 (Flash size: 1MB Flash freq: 40MHZ)
Firmware checksum:
size: 530464
md5: 81b350413dfda43fdce2fe7dc40e727e
True

Networking:
STA ifconfig: ('0.0.0.0', '0.0.0.0', '0.0.0.0', '208.67.222.222')
AP ifconfig: ('192.168.4.1', '255.255.255.0', '192.168.4.1', '208.67.222.222')
Free WiFi driver buffers of type:
0: 8
1: 0
2: 8
3: 4
4: 7
lwIP PCBs:
Active PCB states:
Listen PCB states:
TIME-WAIT PCB states:

Some photos:

IMG_20160914_102338.jpg (181.15 KiB) Viewed 7120 times

IMG_20160914_102349.jpg (132.12 KiB) Viewed 7120 times

[photoacoustic]

Dear all,
Thanks for these post.
I am preparing a workshop in Africa (Senegal, Saint Louis). I will use the nice materials provide by deshipu! Thanks
so with the apparition of the pro version, I hesitate between WeMos D1 Mini vs WeMos D1 Mini pro.
pro version --> new serial-USB chip driver seems to be more easy to install and to find, but with 16 MB flash don't know if a good idea to move now!
Any comments are welcome.
Best regards
Arouna

[rcolistete]

I have flashed the latest master of MicroPython and this module, and it seems to work fine (no surprises there).
As you can guess per https://github.com/micropython/micropython/issues/2335, it doesn't actually see 16MB of flash memory. It sees it as 1MB.

Any more news about the 16MB of flash being visible using MicroPython on WeMos D1 Mini Pro ?

[deshipu]

I'm sure the issue I linked above will be updated as soon as this is fixed, but I wouldn't hold my breath.

[torkinp]

Hi,

Solved, finally, see: https://github.com/micropython/micropython/issues/2335