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I had lot of problems as well. In my case problems are almost solved by switching from SoftwareSerial to AltSoftSerial. It seemed that on the Uno the standard software serial library was not working for me. After switching I started to get results back for the first time. (I also used level shifting and external power supply for 3.3V)


And by almost solved I mean - I still gotget, from time to time some, gibberish on the terminal. So even AltSoftSerial isn't a perfect solution. I was using the ESP-07 with a baud rate of 115200 bps data rate.

I had lot of problems as well. In my case problems are almost solved by switching from SoftwareSerial to AltSoftSerial. It seemed that on the Uno the standard software serial library was not working for me. After switching I started to get results back for the first time. (I also used level shifting and external power supply for 3.3V)


And by almost solved I mean - I still got time to time some gibberish on the terminal. So even AltSoftSerial isn't a perfect solution. I was using the ESP-07 with a baud rate of 115200.

I had lot of problems as well. In my case problems are almost solved by switching from SoftwareSerial to AltSoftSerial. It seemed that on the Uno the standard software serial library was not working for me. After switching I started to get results back for the first time. (I also used level shifting and external power supply for 3.3V)


And by almost solved I mean - I still get, from time to time, gibberish on the terminal. So even AltSoftSerial isn't a perfect solution. I was using the ESP-07 with a 115200 bps data rate.

I had lot of problem alsoproblems as well. In my case problems are almost solved viaby switching from SoftwareSerial to AltSoftSerial ( https://www.pjrc.com/teensy/td_libs_AltSoftSerial.htmlAltSoftSerial ). It seemed that UNOon the Uno the standard software serial library was not working for me. After switching I started to get results back for the first time. (I also used level shifting and external power supply for 3.3V)


And by almost solved I mean  - I still got time to time some gibberish toon the terminal. So even this software serial seems to be not enoughAltSoftSerial isn't a perfect solution. UsedI was using the ESP-07. Baudrate used for communicating with ESP wasa baud rate of 115200.

I had lot of problem also. In my case problems almost solved via switching from SoftwareSerial to AltSoftSerial ( https://www.pjrc.com/teensy/td_libs_AltSoftSerial.html ). It seemed that UNO software serial was not working for me. After switching I started to get results back for the first time. (I also used level shifting and external power supply for 3.3V)


And by almost solved I mean- I still got time to time some gibberish to terminal. So even this software serial seems to be not enough. Used ESP-07. Baudrate used for communicating with ESP was 115200.

I had lot of problems as well. In my case problems are almost solved by switching from SoftwareSerial to AltSoftSerial. It seemed that on the Uno the standard software serial library was not working for me. After switching I started to get results back for the first time. (I also used level shifting and external power supply for 3.3V)


And by almost solved I mean  - I still got time to time some gibberish on the terminal. So even AltSoftSerial isn't a perfect solution. I was using the ESP-07 with a baud rate of 115200.

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I had lot of problem also. In my case problems almost solved via switching from SoftwareSerial to AltSoftSerial ( https://www.pjrc.com/teensy/td_libs_AltSoftSerial.html ). It seemed that UNO software serial was not working for me. After switching I started to get results back for the first time. (I also used level shifting and external power supply for 3.3V)


And by almost solved I mean- I still got time to time some gibberish to terminal. So even this software serial seems to be not enough. Used ESP-07. Baudrate used for communicating with ESP was 115200.