ESP8266 Community Forum

- Thu Jun 18, 2015 7:31 pm #20869 Hi TyTower

Ive tried all of these suggestions...to no avail.

Just be clear, Im using the NodeMCU Development board, and the sketch does flash but not run

Ive pull CHPD->HIGH and GPIO15 to Low but nothing changes

http://whatimade.today/graphic-equalize ... q7-ws2812/ seams to indicate ESP12 is slightly different however when I pull GPIO2->VCC the chip doesnt start.

I think I need to wait to see if someone else has one of these nodemcu boards and can test this out for me...
I have a plain ESP12 board but Im waiting for decent 3.3v psu to arrive as it connects using a CH340 programmer. alas on that one I cant run nodeMCU or Arduino but my gut feeling there is its Power related...


edit : Done some googling and discovered microPython, who have a beta python compiler for the ESP8266, I followed these instructions https://learn.adafruit.com/building-and ... 6/overview and happily managed to flash micropython to the nodeMCU board with no problems....

- Fri Jun 19, 2015 3:23 am #20894 From following this forum it sounds like lots of people have NodeMCU boards and they work ok - I've got several working no problem, so its odd that yours isn't but does with python and LUA.
Which one do you have - the old version or the newer version?

- Fri Jun 19, 2015 3:49 am #20900 Hiya torntrousers

I was just about to send you a message..

1. ive checked the images you provided and yes its the newer one (picture of mine https://www.dropbox.com/s/zzqzq06pc81ffnm/2015-06-19%2009.31.16.jpg?dl=0 .
2. I was gonna ask if someone out there with a NodeMCU board could compile me a "hello world" which prints on the Serial some text. I could then flash tihs using esptool/nodemcu flasher, this would allow me to see if its a compile/toolchain issue or hardware/wiring...

All my tests have been using a PC (Windows8) tonight I'll try using my MAC who knows..

- Fri Jun 19, 2015 3:51 am #20901 That looks like the newer version that uses an ESP-12E, i've used an ESP-12E and it seemed to work ok with the IDE so i don't really understand why it shouldn't work but there are a couple of issues open about that NodeMCU one here and here. If that doesn't work i can send you a compiled sketch to try.