Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)

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By rutierut
#7820 Well that didn't work either, it flashes, there's activity on RX&TX but when the flash tool says its done i cant get any response from the ESP-12 (it does work with my ESP-01)
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By ronyb29
#7885 According to this datasheet http://www.diodes.com/datasheets/AP7333.pdf,
the linear regulator accepts up to 6V input.

So, if your TTL cable has a direct 5V output from the usb port, you can put that in, instead of the batteries (if you do this, remember to TAKE OUT THE BATTERIES or your usb might explode!!)

Here's a pic of mine.
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By MaxSchulz2
#8080
rutierut wrote:
MeNoGeek wrote:
rutierut wrote:What nodemcu firmware do you flash on your esp-12's.
This one, at the moment:
viewtopic.php?f=19&t=1278
rutierut wrote:I pull GPIO 15&0 LOW
...and CH_PD high, right?


Yhea ofcourse, ill try your bin file tonight thanks for the help!


My esp12 won't work either. For flashing I'm pulling GPIO0 and GPIO15 down; CH_PD is always high as I connected it to Vcc with 10k resistor in between.
Flashing works without any problems. I'm flashing the current Lua firmware and with GPIO0&15 low, unplug the module once it's done, unplug GPIO0 and GPIO15 and restart it. Lua Uploader seems to send messages as the USB to serial converter flashes, but I don't get any response. All my esp1 work; this is the second esp12 that ain't working...

How to set GPIO0 and GPIO15 once I want to programm the module, after flashing the firmware? I have them floating.

Does anybody have the same problem? All connections seem to be soldered properly as I checked it a couple of times with the voltage meter... Thank you very much!