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 most SSD1306 Arduino libraries work (for example the Adafruit SSD1306 works after changing Wire.begin() to Wire.begin(4, 15) and setting the reset pin and the I2C address).

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 most SSD1306 Arduino libraries work (for example the Adafruit SSD1306 works after changing Wire.begin() to Wire.begin(4, 15) and setting the reset pin and the I2C address).

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 most SSD1306 Arduino libraries work (for example the Adafruit SSD1306 works after changing Wire.begin() to Wire.begin(4, 15) and setting the reset pin and the I2C address).

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.

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.

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.

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.

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.

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.

Scheda molto buona, ma ha qualche inconveniente. Non è possibile spegnere la scheda e caricare la batteria allo stesso tempo. Anche l'hardware Serial 2: GPIO 16 e 17 non funzionano durante l'utilizzo dell'OLED, per risolvere questo problema ho usato il ponticello in modo che l'OLED prima sia collegato a 3V e tagliare la traccia a GPIO 16. Oltre a questo è un ottimo consiglio per un prezzo ancora maggiore!

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!

Scheda molto buona, ma ha qualche inconveniente. Non è possibile spegnere la scheda e caricare la batteria allo stesso tempo. Anche l'hardware Serial 2: GPIO 16 e 17 non funzionano durante l'utilizzo dell'OLED, per risolvere questo problema ho usato il ponticello in modo che l'OLED prima sia collegato a 3V e tagliare la traccia a GPIO 16. Oltre a questo è un ottimo consiglio per un prezzo ancora maggiore!

Works great. here is how to get working with arduino IDE: https://github.com/espressif/arduino-esp32#installation-instructions 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.

Works great. here is how to get working with arduino IDE: https://github.com/espressif/arduino-esp32#installation-instructions 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.

Works great. here is how to get working with arduino IDE: https://github.com/espressif/arduino-esp32#installation-instructions 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.

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

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

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

BG, the pinout image above doesn't match the silkscreen numbering on my board. So I don't know how to use it. Please supply the schematic. Also, please publish the source for the program that's running on board. That would be helpful. Without the schematic and sample code, these boards are not usable.

BG, the pinout image above doesn't match the silkscreen numbering on my board. So I don't know how to use it. Please supply the schematic. Also, please publish the source for the program that's running on board. That would be helpful. Without the schematic and sample code, these boards are not usable.

BG, the pinout image above doesn't match the silkscreen numbering on my board. So I don't know how to use it. Please supply the schematic. Also, please publish the source for the program that's running on board. That would be helpful. Without the schematic and sample code, these boards are not usable.

Thanks for the product, works great, had no problem getting display to work based on other users comments, i do have an issue with the battery charging circuit - my lipo battery does not seem to be charging. Is there something specific that needs to be done in order to have charging circuit working when connected using usb cable?

Thanks for the product, works great, had no problem getting display to work based on other users comments, i do have an issue with the battery charging circuit - my lipo battery does not seem to be charging. Is there something specific that needs to be done in order to have charging circuit working when connected using usb cable?

Thanks for the product, works great, had no problem getting display to work based on other users comments, i do have an issue with the battery charging circuit - my lipo battery does not seem to be charging. Is there something specific that needs to be done in order to have charging circuit working when connected using usb cable?

Very good price and quality

Very good price and quality

Very good price and quality

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....:):):)

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....:):):)

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....:):):)