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  • January-15 2020 07:52:00

    Very good board, but has a few downfalls. You can’t turn off the board and charge the battery at the same time. Also hardware Serial 2: GPIO 16 and 17 don’t work while using the OLED, to solve this problem I used jumper wire so the OLED rst is connected to 3V, and cut the trace to GPIO 16. Other than that it’s a very good board for an even greater price!

  • March-01 2018 18:47:44

    This board works great, I was able to get both the WiFi and the OLED up and running. The OLED is a bit tricky, it's not connected to the standard I2C pins, its SDA pin is 4 and SCL pin is 15. You can set this up by adding Wire.begin(4, 15) to your setup code. The display's I2C address is 0x3C. You will also need to use the OLED_RST pin to enable the display: pinMode(16,OUTPUT); digitalWrite(16, LOW); delay(50); digitalWrite(16, HIGH); After applying these settings I2CScan can find the display and

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  • May-15 2019 14:39:11

    Works. I've read some overcomplicated about the display. I got it to work with U8g2lib. I used the following constructor line: U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE, /* clock=*/ 16, /* data=*/ 17); this has to be changed to the right pins so it becomes: U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ 16, /* clock=*/ 15, /* data=*/ 4); This got it working for me with the usual U8g2lib functions.

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  • March-09 2018 11:57:43

    Works great. here is how to get working with arduino IDE: Also, LCD might be a bit tricky install library: "ESP8266 and ESP32 Oled driver for SSD1306 display" Look at my attached pictures for minimum demo.

  • April-26 2019 04:22:08

    Очень быстро доставили(СDEK прямо к дверям квартиры).Очень шикарно упаковано(хоть с десятого этажа бросай).Проверил сразу---все работает.Огромное спасибо продавцу!!!!Все отрицательные отзывы для меня ---бред!Работают круче чем Аli.Наверное спасибо конкурентной борьбе....:):):)

  • February-16 2018 01:13:37

    Very nice little ESP32 board with OLED display, when it came i plugged it to usb and demo program was running but I am not able to get it working now, i tried to do it with information from comments but did not worked for me, also tried to check IC2 address with ic2 scanner but without success, but board works well.

  • December-29 2017 05:24:03

    It looks good at first glance The screw is very close to the antenna, I hope that is not a problem

  • April-23 2018 13:46:54

    Module works good so far. Next is to exercise the complete flash. Thanks to eagle for the message below how to get the OLED operating.

  • February-22 2019 00:09:50

    Happy with this module. Working as it should. Easy to programming with the tips on this site

  • JayVIP4
    May-10 2018 07:19:01

    Very good price and quality


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