ESP8266 Community Forum

- Tue Nov 04, 2014 4:09 pm #2243 What did you actually flash to... if you flashed to 902 (latest?)... doesn't that set the default baud to 9600?
Of course you could be talking about some other hex file, in which case, just ignore...

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- Wed Nov 05, 2014 2:09 am #2255 ok, ignore my stupidity....

it was a power supply problem (not enough juice i guess...)
I hooked up more powerful power supply, and now works!
Before i try to power it through usb/ftdi adapter. and attach additional adapter in parallel, just to add power, but i guess it still was not enough. Or perhaps a capacitor was needed for spikes.

@Michaelo: it is 902 version, but since IoT firmware is there, i guess the baud rate is now 115200.

- Wed Nov 05, 2014 6:37 am #2261 if you use arduino as usb-ttl you must remove atmega328 on arduino duemilove.
1-) remove atmega328 on arduino
2-) connect tx-rx and vcc to 3.3v pin gnd to gnd.
3-) connect usb to pc
4-) open putty or same serial monitor program and connect arduino port with correct boudrate.
5-) connect ch_pd to 3.3v and look at the monitor.

if you see arduino disconnect from computer it mean its not enaugh your arduinos powersupply. you must use other power supply.
if you dont lose connection wait a couple second and if you see unreadable character on serial monitor, disconnect and change boudrate.

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- Wed Nov 05, 2014 9:44 pm #2274 Received some more chips from electrodragon and didn't know what baud rate to use so I added code to loop through different baud rates and run a quick connect test, it's as well I added it, the new 8266's connected at 9600 as opposed to the earlier versions at 115200...

Also received some level shifter boards but they are so tiny I can't make out the connections without a second pair of glasses... I'm sticking to the resistor diode combo for now, at least I can see those... Now if only the ESP8266 had one AD channel...
Mike

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