B4R Question ESP-01 pinout

[GiG]

Hi All,

I'm using ESP01 board, please can some one tell me the number of PIN that I have to use for GPIO_0 and GPIO_2 of this board?

Thank you
GiG

 

[woniol]

Hi,
please try this:
- add rESP8266 library to your project
- add D1Pins to Process_Globals

Private dp As D1Pins

- use dp in your code like this:

ledPin.Initialize(dp.D0, ledPin.MODE_OUTPUT)

 

[GiG]

Hi,
so could be like this?

In global:

Private dp As D1Pins
Private bt as D1Pins

In code:

ledPin.Initialize(dp.D0, ledPin.MODE_OUTPUT) ' --> this for GPIO_0
buttonPin.Initialize(bt.D2, buttonPin.MODE_INPUT) ' --> this for GPIO_2

But I have a dubt:
I have to declare buttonPin and ledPin, how?

Thank you

 

[woniol]

Hi,
You can declare it once:

Private dp As D1Pins

and use it for all pins initialization:

ledPin.Initialize(dp.D0, ledPin.MODE_OUTPUT) ' --> this for GPIO_0
buttonPin.Initialize(dp.D2, buttonPin.MODE_INPUT) ' --> this for GPIO_2

Just give it a try if it works with your board.

 

[GiG]

Hi,

I need to declare buttonPin but it's non working, GPIO_0 is all time a 0 even when I connect it to VCC

#Region Project Attributes
    #AutoFlushLogs: True
    #CheckArrayBounds: True
    #StackBufferSize: 300
#End Region

Sub Process_Globals
    Public Serial1 As Serial
    Private Timer1 As Timer
    Private dp As D1Pins
    Dim buttonPin As Pin

End Sub

Private Sub AppStart
    Serial1.Initialize(115200)
    Log("AppStart")
    buttonPin.Initialize(dp.D0, buttonPin.MODE_INPUT_PULLUP) ' --> this for GPIO_0
    Timer1.Initialize("Timer1_Tick", 1000) '1000ms = 1 second
    Timer1.Enabled = True
End Sub

Private Sub Timer1_Tick
    Log("Timer1_Tick")
    Log ("buttonPin=" , buttonPin.DigitalRead)
End Sub

Any idea?

Thank you

 

[Erel]

Pins 0 and 1 are usually reserved for the hardware serial port. This is the serial port that is used for logging. Use different pins.

 

[GiG]

Hi Erel,

in the board ESP-01 GPIO0 and GPIO2 is not used for serial port, are different pins, so I'm watching log on B4R log.

I'm talking for GPIO, I'm using looging to read their status after flasing program.

This board has only 2 GPIO, 0 and 2. This is the board:

https://cdn.instructables.com/FR0/YPQQ/IJX7FOP5/FR0YPQQIJX7FOP5.LARGE.jpg
https://cdn.instructables.com/FQ3/0RFA/IJX7FOPJ/FQ30RFAIJX7FOPJ.LARGE.jpg

What could I do?

Thank you

 

[Erel]

Start with running an example program from Arduino IDE. Are you able to control the pins?

Seems like it requires a few steps: https://www.instructables.com/id/How-to-use-the-ESP8266-01-pins/

 

[GiG]

Hi All,

I founded the correct settings traying pins one by one, at the end I discovered this:

for GPIO_0 --> dp.D4
for GPIO_2 --> dp.D3

Thank you for all to help me!! Hi hope it could be helpfull also for other.

Now I will move to deepsleep and web client, my final target is a connection with IFTTT.

If needed I will ask you more in a new tread.

Thank you again for helping me!!

GiG