问题描述
Arduino: 1.8.13 (Windows Store 1.8.42.0) (Windows 10),Board: "Generic ESP8266 Module,80 MHz,Flash,Legacy (new can return nullptr),All SSL ciphers (most compatible),dtr (aka nodemcu),26 MHz,40MHz,DOUT (compatible),1MB (FS:64KB OTA:~470KB),2,nonos-sdk 2.2.1+100 (190703),v2 Lower Memory,disabled,None,Only Sketch,115200"
Executable segment sizes:
IROM : 236720 - code in flash (default or ICACHE_FLASH_ATTR)
IRAM : 26892 / 32768 - code in IRAM (ICACHE_RAM_ATTR,ISRs...)
DATA : 1252 ) - initialized variables (global,static) in RAM/HEAP
RODATA : 780 ) / 81920 - constants (global,static) in RAM/HEAP
BSS : 24976 ) - zeroed variables (global,static) in RAM/HEAP
Sketch uses 265644 bytes (27%) of program storage space. Maximum is 958448 bytes.
Global variables use 27008 bytes (32%) of dynamic memory,leaving 54912 bytes for local variables. Maximum is 81920 bytes.
esptool.py v2.8
Serial port COM3
Connecting........_____....._____....._____....._____....._____....._____.....____Traceback (most recent call last):
File "C:\Users\Arsh\Documents\ArduinoData\packages\esp8266\hardware\esp8266\2.7.4/tools/upload.py",line 65,in <module>
esptool.main(cmdline)
File "C:/Users/Arsh/Documents/ArduinoData/packages/esp8266/hardware/esp8266/2.7.4/tools/esptool\esptool.py",line 2890,in main
esp.connect(args.before)
File "C:/Users/Arsh/Documents/ArduinoData/packages/esp8266/hardware/esp8266/2.7.4/tools/esptool\esptool.py",line 483,in connect
raise FatalError('Failed to connect to %s: %s' % (self.CHIP_NAME,last_error))
esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header
esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header
or it says Invalid Head of Packet(0xF0)
_
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
使用电压调节器插入 3.3v im。
RX 接RX & TX 接TX。
代码:
#include <ESP8266WiFi.h>
void setup()
{
Serial.begin(115200);
Serial.println();
WiFi.begin("username","password");
Serial.print("Connecting");
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println();
Serial.print("Connected,IP address: ");
Serial.println(WiFi.localIP());
}
void loop() {}
有人建议将GPIO0接地,没有用。
尝试安装不同版本的开发板:“通用 ESP8266 模块”仍然出现相同的错误。
该模块在没有使用 Board 的库的情况下工作正常:"arduino uno"
解决方法
GPIO-00 需要保持接地,同时 RESET 接地,然后返回高电平。这会将 ESP-01 重新启动到 FLASH 模式。
有关完成此操作的电路的完整概述,请阅读: https://www.allaboutcircuits.com/projects/flashing-the-ESP-01-firmware-to-SDK-v2.0.0-is-easier-now/
在此处阅读有关 ESP8266 启动模式的信息: https://tttapa.github.io/ESP8266/Chap04%20-%20Microcontroller.html
,您能否提供有关您使用的 3.3V 稳压器的更多详细信息? 串行信号之间有连接吗?
如果是这样,我建议改为使用此连接:
ESP TX 和 Arduino RX 可以直接连接,没有任何问题