WEMOS ESP8266 Board with OLED & 18650 Battery Holder

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ESP32 Board with OLED
ESP32 Board with OLED
ESP32 Board with OLED

Features

  • One AD inputs.
  • Micro USB inputs.
  • One programmable LED (D0).
  • Integrated 18650 battery charging and discharging system.
  • One switch controls whether the 18650 battery is powered or not.
  • OLED's SDA and SCL connect to the D1 pin and the D2 pin respectively.
  • The five buttons are controlled by FLATH, RSET, D5, D6, and D7 respectively.
  • The 5 Digital pins can configure the write/read/interrupt/pwm/I2C/one-wire supported separately.
  • Operation and NodeMCU consistent, adding a programmable LED, you can use GPIO16 to control, display 8266 running status and other functions. Integrated OLED and five button, more convenient for development.
  • The design concept originates from the open source project NodeMCU, and the development board integrates 18650 charging and discharging systems with charging and discharging protection. At the same time, a OLED and five directional buttons are integrated to facilitate the development.


Specification

  • Charging Protection:Yes
  • Discharge Protection:Yes
  • Compatible With Arduino
  • Compatible With NodeMCU
  • Wide Voltage Input Range: 5V~12V
  • Charge Current:500 mA
  • Size(L*W*H):102 x 30 x 20 mm
  • Display Size: 0.96 Inch

ESP8266+18650+OLED-4.jpg

ESP8266+18650+OLED-5.jpg

Documents

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Anonymous user #4

11 months ago
Score 0++
I have also come across one of these and want to get the display working. Is there a github repo showing an example of the display code that works?

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Anonymous user #4

11 months ago
Score 0++

Ok, I figured it out.

Get library + example file

Arduino IDE >> Tools >> Library Manager >> SSD1306 >> Install

Arduino IDE >> File >> Examples >> Adafruit SSD1306 >> ssd1306_128x64_i2c

alter definitions:

// on this board the address is not 0xDC, it is 0x3C

  1. define SCREEN_ADDRESS 0x3C

alter setup function:

void setup() { // // EXISTING_CODE // Serial.begin(9600); // // NEW_CODE // // Wire.h defaults are: SDA: 4, SCL: 5 // but we must reverse it for this board: // pin 5 SDA (this board) // pin 4 SCL (this board)

Wire.begin(5, 4);
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Walker

11 months ago
Score 0++
Hello, this product has been out of stock for a long time, can you provide us with your order number?
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Anonymous user #3

14 months ago
Score 0++
Picture labels misleading, or is there a ESP32 also with identically looking picture as the ESP8266?

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Walker

14 months ago
Score 0++
Hello, we have not sold this product a long time ago, when did you buy it? Can you provide your order number?
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Anonymous user #1

32 months ago
Score 0++
It would be very helpful to know what the model of the display is. I have been trying to set up one of these in ESPHome using the ssd1306 module but it's not working. I'm not sure if that is what this is using.

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Anonymous user #2

31 months ago
Score 0++

Change pins SSD1306Wire display(0x3c, SDA, SCL); to SSD1306Wire display(0x3c, SCL, SDA); That board have some mistakes.

For example: if You move joystick Right it will Reset. 8-)
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