Current Lua downloadable firmware will be posted here

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By senderj
#64897 I am trying to connect my new NodeMCU Lua board with Windows using Putty and USB. It has "NodeMcu v3" at its back. If I use Arduino IDE, I am able to download sketch examples, like Blink, NTPClient, TestEspApi and WiFiScan. They all run very well. Output of them can be seen in the IDE's serial monitor if the baud rate matches the coding. Except that every time I compile, two warning messages appear:
Code: Select allBoard arduino:avr:ATmega328p-16 doesn't define a 'build.board' preference. Auto-set to: AVR_ATMEGA328P-16
Board breadboard:avr:atmega328bb doesn't define a 'build.board' preference. Auto-set to: AVR_ATMEGA328BB

But if I use Putty with baud rate 9600 or 115200, garbage characters appears. Only 74880 gives a close to meaningful output (no mis-typing below):
Code: Select all ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v09f0c112
~ld

which is not what I saw in others tutorials I've followed. Besides, it refused to react to any keyboard input from Putty or Arduino serial monitor. I would appreciate if anyone can point my the direction to fix it?