- Fri Apr 21, 2017 11:12 am
#65118
hello everybody. recently i purchase in amazon.es two esp8266 to stand alone and send data from a pzem-004t meter.
I can connect it to my pc and using arduino ide i try the AT commands. It works well.
But now, i download the latest micropython bin file (512 and 1mb versions), flash with nodemu firmware programmer and when finish it, i turn off and on again the 3.3v power supply of the esp8266 and disconect the pin to turn esp8266 into normal mode.
When i connect again with arduino ide to the com port, always i obtain garbage.
I dont see the phyton prompt. i´ll try with differents speeds in putty but always garbage.
with esptool.py i have a backup of the original firmware before i flash micropython but when i reflash, i obtain again garbage.
This is the information i obtain with AT commands before i try to flash new firmware:
AT version:1.3.0.0(Jul 14 2016 18:54:01)
SDK version:2.0.0(656edbf)
compile time:Jul 19 2016 18:44:44
ets Jan 8 2013,rst cause:1, boot mode:(3,7)
load 0x40100000, len 2408, room 16
tail 8
chksum 0xe5
load 0x3ffe8000, len 776, room 0
tail 8
chksum 0x84
load 0x3ffe8310, len 632, room 0
tail 8
chksum 0xd8
csum 0xd8
2nd boot version : 1.6
SPI Speed : 40MHz
SPI Mode : DOUT
SPI Flash Size & Map: 8Mbit(512KB+512KB)
jump to run user1 @ 1000
what i do wrong?
Many thanks in advace
I can connect it to my pc and using arduino ide i try the AT commands. It works well.
But now, i download the latest micropython bin file (512 and 1mb versions), flash with nodemu firmware programmer and when finish it, i turn off and on again the 3.3v power supply of the esp8266 and disconect the pin to turn esp8266 into normal mode.
When i connect again with arduino ide to the com port, always i obtain garbage.
I dont see the phyton prompt. i´ll try with differents speeds in putty but always garbage.
with esptool.py i have a backup of the original firmware before i flash micropython but when i reflash, i obtain again garbage.
This is the information i obtain with AT commands before i try to flash new firmware:
AT version:1.3.0.0(Jul 14 2016 18:54:01)
SDK version:2.0.0(656edbf)
compile time:Jul 19 2016 18:44:44
ets Jan 8 2013,rst cause:1, boot mode:(3,7)
load 0x40100000, len 2408, room 16
tail 8
chksum 0xe5
load 0x3ffe8000, len 776, room 0
tail 8
chksum 0x84
load 0x3ffe8310, len 632, room 0
tail 8
chksum 0xd8
csum 0xd8
2nd boot version : 1.6
SPI Speed : 40MHz
SPI Mode : DOUT
SPI Flash Size & Map: 8Mbit(512KB+512KB)
jump to run user1 @ 1000
what i do wrong?
Many thanks in advace
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