2020. 2. 19. 08:10ㆍ카테고리 없음
Hey Ray,My Arduino Code is already compiling without any errors.So the ESP8266 board Support for Arduino IDE is running.And the folder 'espsoftwareserial-master' is located under 'C:UsersDanielDesktoparduino-1.6.5-r5libraries'.I´m already able to Switch LED´s over Wifi.Just the SoftwareSerial is not yet running as wanted.Can i use every pin on the ESP8266 for SoftwareSerial?Or does it need Interrupt capability?I´m also not sure if 'SoftwareSerial readerSerial(16, SWSERIALUNUSEDPIN);' takes pin GPIO16?RegardsDaniel. I encounter similar issues.Depending on what kind of ESP8266 board you are using (mine is HUZZAH), note that all most all the pin( GPIO, TX, RX, etc) are 3.3V voltage. They are not 5V compatible. So if you are trying to use 3.3V serial to communicate with a 5V serial (e.g.
Esp8266 Sdk Uart
Arduino), it's not gonna work.I tested using a level shifter in RX of ESP8266 to communicate with the Arduino and it works (I did not visually send the data transmission tho, I use LED to check. Received data or not will trigger different LED blinking pattern). This may be one way to go.
I am doing a task that send sensor data Through WIFI from esp to PC application to visualize it. All parts of this project done except the one that send the sensor data from UNO to ESP on software serial.Wiring:.connect Rx (0) of UNO to pin (12) in ESP. As Tx.connect Tx (1) of UNO to voltage divider to take 3.3 v to ESP. Pin (14) as Rx. ground of ESP. To Ground of UNO.
V+ of ESP. To 3v3 of UNO.Code:two codes to test this process if it is working or not. One on ESP and another on arduinoAfter building I found according to the screenshow below, there is something being send because of the condition of while loop and the delay I set but the output is converted to numbers not string, random numbers!
To 3v3 of UNO.The 3v3 pin on a standard Uno will not supply enough current for an ESP8266 to work reliably.Serial on the Uno is connected to Arduino pins 0 and 1, which you're using for output to the Serial Monitor on your computer(as well as uploading sketches). You're also using pins 0 and 1 to communicate with the ESP8266 using software serial. You can't use the same pins for both these purposes at the same time.