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Description
When you need the ESP32 to make your projects you should add a battery to provide the power. This tiny board could solve such problems. it has a power bank circuitry on the board, An LG 3000mAH 18650 battery (NOT include) could make ESP32 run 17 hours or more. 18650 charging system integrated, 0.5A charging current, 1A output, The entire solution takes up the least amount of printed circuit board area. This board is used with 2.4 GHz dual-mode Wi-Fi and Bluetooth chips by TSMC 40nm low power technology,
Features:
18650 charging system integrated.
indicate LED inside(Green means full& Red means charging)
Charging and working could be at the same time.
one Switch could control the power.
1 extra LED could be programmed(Connected with GPIO16[D0])
0.5A charging current
1A output
Overcharge protection
Over-discharge protection
Full ESP32 pins break out
High performance-price ratio
Small volume, easily embedded to other products
Strong function with support LWIP protocol, Freertos
Supporting three modes: AP, STA, and AP+STA
Supporting the Lua program, easily to develop
In this tutorial with Wemos ESP8266 Wroom D1 Mini WiFi Module 18650 Battery Holder Onboard, we'll use an application from the smartphone "Blynk" to control the Arduino Wemos D1 (ESP8266) with LED Traffic Light Module.
item needed:
- Breadboard
- Wemos ESP8266 Wroom D1 Mini WiFi Module 18650 Battery Holder Onboard
- Jumper wires male to female
- LED Traffic Light Module ( you can also use base LEDs )
- micro USB
- Smartphone (You need to download "Blynk" from Play Store/iStore)
- Ultrafire 3.7V 1100mAh Li-Ion Battery (if needed
Connections of the circuit:
Follow the connection as shown above.
Board Installation
Next, open Arduino IDE and go to [File => Preferences]. A dialog box appears. In this box, an additional board manager URL text box is present.
- Copy and paste the following URL into the box and click OK to download the packages.
- http://arduino.esp8266.com/stable/package_esp8266com_index.json
Find Out in Board Manager
Next, go to [Tools => Board => Board Manager] in your Arduino IDE. The Boards Manager window appears as below. Scroll down the boards in the board manager to select ESP8266 from the list of available boards. Click on install to begin the installation.
Select Board
Next, upload your first program select the type of "LOLIN(WEMOS) D1 R2 & mini" board from the [Tools => Boards] section in your Arduino IDE.
Example Code:
To get the example code from the Blynk you need to download the library from the Blynk website.
https://www.blynk.cc/getting-started/
Follow these steps:
- Select "Download Blynk Library".
- Select "Blynk_Release_v0.5.4.zip".
- Extract the files and copy both of the files (libraries, tools).
- Open Arduino IDE go to [Files => Preferences] find the files that appear on the "Sketchbooks location".
- Open the Arduino file and paste both of the files you've copied.
- Then, open your Arduino IDE, go to [Files => Examples => Blynk => Boards Wifi =>Standalone] for the example code.
Blynk Setup
Next, you need to set up your "Blynk" from your smartphone.
Follow these steps:
- Download "Blynk" at Play Store/iStore.
- Sign up using your email.
- Go to the "New Project" Enter your project name (if needed).
- Choose the device "WeMos D1 mini".
- Connection type "Wifi" then "Create". (After create you will receive Auth Token from your email).
- Slide to the left to open "Widget Box".
- Select "Button" to add a button.
- Touch the button for "Button Settings".
- Select [Output => Digital => D2,D3,D4] to choose pin connection.Mode turns into "Switch".
Uploading
Now you need to check out your email inbox and copy the Auth token code.
Insert the Auth Token, Network name, and Password to your programming. Now upload the code to your WeMos D1 mini through micro USB. Make sure you use the right port by select at [Tools => Port].
Try Out Blynk Button
Select the play button from the upper right side and turn on the pin button.
We Hope this project with Wemos ESP8266 Wroom D1 Mini WiFi Module 18650 Battery Holder Onboard worked with you