ZBasic Forum

Posted: **04 May 2018, 17:40 PM**

Hi !
I'm beginning with ZBasic and I want some help for my first program.
I'm using a Wemos D1 mini (ESP8266)
I wrote this simple program to blink a led with the D4 (GPIO2) pin :

Code: Select all

Sub Main&#40;&#41;
   Dim i as Integer, j as Integer
   For j = 1 to 32000
      PinHigh&#40;2&#41;
      For i = 1 to 1000 
      Next i
      PinLow&#40;2&#41;
      For i = 1 to 1000 
      Next i
   Next j
End Sub

So, I had this error message :

led.c: In function 'zf_Main':
led.c:110:3: error: 'ESP_PIN_OUT_SET' undeclared (first use in this function)
ESP_PIN_OUT_SET = 0x0002;
^
led.c:110:3: note: each undeclared identifier is reported only once for each function it appears in
led.c:114:3: error: 'ESP_PIN_OUT_CLEAR' undeclared (first use in this function)
ESP_PIN_OUT_CLEAR = 0x0002;
^

Can you help me ?

Thank's !

Posted: **05 May 2018, 10:47 AM**

memi205 wrote:I had this error message

I'm not quite sure yet how the circumstances arose that lead to the error but I can help you work around it for now.

In the ZBasic installation directory open the directory zlib and load the file zbasic.h found there into an editor. Search for a line beginning with #define IO_MUX_GPIO10 and after it insert the following lines:

Code: Select all

#define ESP_PIN_DIR_OUTPUT              GPIO_DIR_OUT
#define ESP_PIN_DIR_INPUT               GPIO_DIR_IN
#define ESP_PIN_OUT_SET                 GPIO_OUT_SET
#define ESP_PIN_OUT_CLEAR               GPIO_OUT_CLR
#define ESP_PIN_OUT                     GPIO_OUT
#define ESP_PIN_IN                      GPIO_IN

Save the file with the changes and then try re-compiling your ZBasic project.

Posted: **06 May 2018, 5:41 AM**

Thank's for your answer.

I just found the problem, The pin 2 must be named A.2 on the ESP8266.

So, my test program (very simplified) is now like this :

Const pin2 as Byte = A.2
Sub Main()
Do
Call PutPin(pin2,0)
Call Delay(1.0)
Call PutPin(pin2,1)
Call Delay(1.0)
Loop
End Sub

Thank's !

ZBasic Forum

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Help wanted for blinking led with ESP8266

Re: Help wanted for blinking led with ESP8266