Esp8266 Stuck

Ray0665

I think I bricked my adafruit hazzah. I uploaded a bad init.lua and now it is stuck rebooting.
I tried reflashing hoping it would reinitialize memory but no such luck.
Does anyone know how to recover from this or is it bricked?

MJB

reflashing the LUA/NodeMCU firmware will help

and then make sure your boot sequence has either a wait long enough to break, or check a pin for abort

I learned it the hard way

edit: here alink esp8266-nodemcu-interrupting-init-lua-during-boot

here's what I do on ESP12
1. check pin 14/5 for pulldown if low stop
2. wait some time to allow for console command "tmr.stop(0)"

--init.lua
-- checking pin GPIO14 = (GPIOID = 5)for GND connection
--    if GND then stop script
gpio.mode(5,gpio.INPUT,gpio.PULLUP)
if gpio.read(5) == 1 then 
    print("now is time for  tmr.stop(0) ")
    --[[
    tmr.stop(0)
    ]]
    cb = function()
        print("Setting up WIFI...")
        wifi.setmode(wifi.STATION)
        --modify according your wireless router settings
        wifi.sta.config("nwid","pw")
        wifi.sta.connect()
            tmr.alarm(1, 1000, 1, function() 
               if wifi.sta.getip()== nil then 
                print("IP unavaiable, Waiting...") 
                else 
                tmr.stop(1)
                print("Config done, IP is "..wifi.sta.getip())
                dofile("RealCode.lua")
                end 
            end)
        end
    cb()
    tmr.alarm(0,1000000,1,cb())
end

Ray0665

Thanks for the reply

I seems flashing is not the answer since I've flashed twice now with no success
I am using esp8266flasher.exe from the nodemcu team

Ive seen the various rescue methods in other posts and you can be sure Ill use something next time
around but its too late for this one. Im just happy they are so cheap.

localroger

I'd suggest flashing with a different firmware, such as the integer NodeMCU if you've been using the float one or vice-versa; this might force the flash to be reformatted.

Every time I have flashed one of my modules with NodeMCU it has reformatted the flash file system without being asked.

Ray0665

@localrodger
Flashing with the new image worked!!!
Thanks for the help

Lesson learned.. A fail safe will be included in all future init.lua experiments