Re: [SOLVED] pinMode(D8, INPUT_PULLUP) not pulling up
Posted: Sun Sep 04, 2016 8:50 amYes thanks 
but that's not what I meant. Your initial comment said "these boards usually" Blah blah "boot". So I could sense you were using some intimate knowledge about the boot process and sweeping experience with the ins-and-outs of the ESP8266 board-level idiosyncracies. In other words one who has seen the pitfalls.
Thus I figure there's probably some general guidlines here about which pins one should avoid or reserve for special uses. I'm still trying to figure out when I can use gpib0 and gpib15 and 16 safely. gpib1 is also a landmine for input because it's TX output and RX is a landmine for ouput and moreover it's pulled up externally.
thus I was hoping there was a list of GPIO lines and their frequent idiosyncracies.
Also since you seem to be knowledgable about boots and such I'll mention I'm struggling with the HUZZAH in trying to figure how to use DTR from an FTDI Usb-serial board to let me upload without the fiddly flash and reset button presses (like the nodeMCU does).
but that's not what I meant. Your initial comment said "these boards usually" Blah blah "boot". So I could sense you were using some intimate knowledge about the boot process and sweeping experience with the ins-and-outs of the ESP8266 board-level idiosyncracies. In other words one who has seen the pitfalls.Thus I figure there's probably some general guidlines here about which pins one should avoid or reserve for special uses. I'm still trying to figure out when I can use gpib0 and gpib15 and 16 safely. gpib1 is also a landmine for input because it's TX output and RX is a landmine for ouput and moreover it's pulled up externally.
thus I was hoping there was a list of GPIO lines and their frequent idiosyncracies.
Also since you seem to be knowledgable about boots and such I'll mention I'm struggling with the HUZZAH in trying to figure how to use DTR from an FTDI Usb-serial board to let me upload without the fiddly flash and reset button presses (like the nodeMCU does).
