new to esp32
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- Posts: 4
- Joined: Tue Aug 20, 2024 9:57 pm
new to esp32
Hi, I'm new to esp32, I got the esp32 s-3 devout c-1 board and the esp32-c3 devout m1, but I can't identify which are the i2c pins in the s-3, in the c3 are clearly identified in the documentation, all help will be appreciated.
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- Joined: Thu Nov 26, 2015 4:08 am
Re: new to esp32
ESP32 chips don't have dedicated pins for that; you can select any of them to be used for I2C. (Note that some SDKs, like Arduino, do use default pins if you don't specify any, but that's an SDK thing, not something that is enforced in hardware.)
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Re: new to esp32
thank you, I didn't know that, any instruction on how to do that?
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- Joined: Thu Nov 26, 2015 4:08 am
Re: new to esp32
Depends on the SDK. Which one are you using?
Re: new to esp32
hii i am getting this error while compiling can anyone can help me...
Error:
...8_LCD_Menu:377:1: error: insn does not satisfy its constraints:
377 | }
| ^
(insn 11 2651 1185 127 (set (reg:SF 19 f0 [orig:127 _95 ] [127])
(mem/u/c:SF (symbol_ref/u:SI ("*.LC357") [flags 0x2]) [0 S4 A32])) "C:\Users\chara\Downloads\CODE_MPPT_ESP32_V1.2.1-20240819T055256Z-001\CODE_MPPT_ESP32_V1.2.1\8_LCD_Menu.ino":205:33 49 {movsf_internal}
(expr_list:REG_EQUAL (const_double:SF 0.0 [0x0.0p+0])
(nil)))
during RTL pass: postreload
C:\Users\chara\Downloads\CODE_MPPT_ESP32_V1.2.1-20240819T055256Z-001\CODE_MPPT_ESP32_V1.2.1\8_LCD_Menu.ino:377:1: internal compiler error: in extract_constrain_insn, at recog.cc:2692
Please submit a full bug report, with preprocessed source (by using -freport-bug).
See <https://gcc.gnu.org/bugs/> for instructions.
exit status 1
insn does not satisfy its constraints: ...'''
Code: Select all
else if(subMenuPage==2){
lcd.setCursor(0,0);lcd.print("CHARGING CURRENT");
if(setMenuPage==1){lcd.setCursor(0,1);lcd.print(" >");}
else{lcd.setCursor(0,1);lcd.print("= ");}
lcd.setCursor(2,1);lcd.print(currentCharging,2);lcd.print("A");
lcd.print(" ");
//SET MENU - FLOATTYPE
if(setMenuPage==0){floatTemp = currentCharging;}
else{
if(digitalRead(buttonBack)==1){while(digitalRead(buttonBack)==1){}currentCharging = floatTemp;setMenuPage=0;}
if(digitalRead(buttonSelect)==1){while(digitalRead(buttonSelect)==1){}saveSettings();setMenuPage=0;}
currentMenuSetMillis = millis();
if(digitalRead(buttonRight)==1){ //Right button press (increments setting values)
while(digitalRead(buttonRight)==1){
if(millis()-currentMenuSetMillis>longPressTime){ //Long Press
currentCharging += 1.00; //Increment by 1
currentCharging = constrain(currentCharging,0.0,cOutSystemMax); //Limit settings values to a range
lcd.setCursor(2,1);lcd.print(currentCharging,2);delay(longPressInterval); //Display settings data
}
else{ //Short Press
currentCharging += 0.01; //Increment by 0.01
currentCharging = constrain(currentCharging,0.0,cOutSystemMax); //Limit settings values to a range
lcd.setCursor(2,1);lcd.print(currentCharging,2);delay(shortPressInterval); //Display settings data
}
lcd.print("A "); //Display unit
}
}
else if(digitalRead(buttonLeft)==1){ //Left button press (decrements setting values)
while(digitalRead(buttonLeft)==1){
if(millis()-currentMenuSetMillis>longPressTime){ //Long Press
currentCharging -= 1.00; //Increment by 1
currentCharging = constrain(currentCharging,0.0,cOutSystemMax); //Limit settings values to a range
lcd.setCursor(2,1);lcd.print(currentCharging,2);delay(longPressInterval); //Display settings data
}
else{ //Short Press
currentCharging -= 0.01; //Increment by 0.01
currentCharging = constrain(currentCharging,0.0,cOutSystemMax); //Limit settings values to a range
lcd.setCursor(2,1);lcd.print(currentCharging,2);delay(shortPressInterval); //Display settings data
}
lcd.print("A "); //Display unit
}
}
}
}
377 | }
| ^
(insn 11 2651 1185 127 (set (reg:SF 19 f0 [orig:127 _95 ] [127])
(mem/u/c:SF (symbol_ref/u:SI ("*.LC357") [flags 0x2]) [0 S4 A32])) "C:\Users\chara\Downloads\CODE_MPPT_ESP32_V1.2.1-20240819T055256Z-001\CODE_MPPT_ESP32_V1.2.1\8_LCD_Menu.ino":205:33 49 {movsf_internal}
(expr_list:REG_EQUAL (const_double:SF 0.0 [0x0.0p+0])
(nil)))
during RTL pass: postreload
C:\Users\chara\Downloads\CODE_MPPT_ESP32_V1.2.1-20240819T055256Z-001\CODE_MPPT_ESP32_V1.2.1\8_LCD_Menu.ino:377:1: internal compiler error: in extract_constrain_insn, at recog.cc:2692
Please submit a full bug report, with preprocessed source (by using -freport-bug).
See <https://gcc.gnu.org/bugs/> for instructions.
exit status 1
insn does not satisfy its constraints: ...'''
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- Posts: 4
- Joined: Tue Aug 20, 2024 9:57 pm
Re: new to esp32
im using the Arduino ide to program the boards
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- Posts: 9582
- Joined: Thu Nov 26, 2015 4:08 am
Re: new to esp32
Please post that in a separate topic.
You can set the GPIOs when initializing the TwoWire object. For e.g.GPIO 12 and 13, you would do something likedonreypirata wrote:im using the Arduino ide to program the boards
Code: Select all
TwoWire I2Cbus = TwoWire(0);
I2Cbus.begin(12, 13, 100000);
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- Posts: 4
- Joined: Tue Aug 20, 2024 9:57 pm
Re: new to esp32
great, thank you very much, I will try it this weekend, really appreciate your help
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