[Solved} ESP32 SOLO in not working

Projects General Guidance
1

Hi Team,

I am using ESP32 SOLO-1 esp module with custom board
I selected ESP32 Dev Module ( Board ) during upload code using Arduino IDE
Following code is used to blink the LED that connected to pin number GPIO 23 and GPIO17
Code successfully uploaded but LED does not blinking
Reset pin is working


int x = 1000;
void setup() {
  pinMode(23, OUTPUT);
  pinMode(17, OUTPUT);


}

void loop() {
  digitalWrite(23, LOW);
  digitalWrite(17, HIGH);
  delay(x);
  digitalWrite(23, HIGH);
  digitalWrite(17, LOW);
  delay(x);

}

Please advise the reason not to working the led

Thanks in advanced

2

Are you use a series resistor with led?

3

Yea what he asked. About that resistor.

Also why drive the LED using 2 GPIO pins?

Also pin 17 is normally used for a secondary serial port with the ESP32's Arduino core.

Regarding GPIO_NUM_23 if you are planning on adding a SPI device this pin is used, under the Arduino Core, as SPI_MOSI.

For blinking and LED use the internal LED normally built into a ESP32 developer module on GPIO_NUM_2. GPIO_NUM_0, 4, 5, 15,14,27, 26, 25 are good general purpose GPIO pins.

Even though the max current per GPIO pin for the ESP32 is 40mA it is recommended that no more then 20mA per GPIO pin is used.

If there was no current limit resistor, I use 330 ohm or larger, then you may have destroyed 2 GPIO pins in the least.

4

@b707
Yes

5

Is there any additional library to be installed for ESP32 SOLO -1
I have connected several LED's for several pins but it does not working

I will thanks everyone who helped me in varies advised to solved my problem

6

Hi,
attention, this product has been discontinued by espressif.
"https://www.espressif.com/sites/default/files/documentation/esp32-solo-1_datasheet_en.pdf

You can post a schematic of your "project". (even if done freehand).

7

Problem is solved after replacing ESP32 WROOM 32
ESP32 SOLO HAS BIG issue as per the ruilviana point out

1 Like
8

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9

Sure

10

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