Heltec WIFI Kit8 Board ESP8266 32MBit

This WIFI Kit 8 is an original Heltec board. It is equipped with an ESP8266 microcontroller and an OLED display. The OLED is perfect for debugging or displaying measurement values. The board also features a Lipo connection with charging controller. However, since the Deep-Sleep current is approximately 10mA, it is only suitable for limited mobile use. This board does not skimp on flash memory since it has a 32MBit memory chip installed. The ESP8266 microcontroller is very powerful and comes with a WLAN radio module. The module is compatible with the Arduino IDE and can be programmed accordingly. With the ESP8266, you can easily connect your projects to the internet. The board is often used for IoT (Internet of Things) applications. For example, you can easily connect your data logger to the internet and log data to the cloud. The WIFI Kit8 has a Micro-USB port for programming and power supply. The ESP8266 is a pure 3.3V controller, so you must only operate all inputs and outputs at 3.3V! If you need to connect or control something with 5V, you must use a Logic Level Converter, which you can also find in our shop.

This board can be plugged into a Half-Size Breadboard, and there is still enough space on both sides to plug in Dupont cables. 

Programming via the Arduino IDE

When programming with the Arduino IDE, you have to consider that you can control the pins with two different variants.

Option 1: Using the labeled name on the board:

Take output D1 as an example. Here, you can switch the output using the command digitalWrite(D1,HIGHT).

Option 2: Using the GPIO number:

Here, you control the D1 output via the GPIO number. In our example, D1 is GPIO05. So via the command digitalWrite(5,HIGHT).

If you have questions or problems with control or suggestions for the product description, just send us an email or use the review function. We are happy to help.

Link CP2104 USB-UART Driver:

https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

Links GitHub WIFI Kit8:

https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/tree/master/esp8266

Downloads Heltec WIFI Kit8:

• Heltec WIFI Kit8 Schema
  
• Heltec WIFI Kit8 PinOut:
  

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Technical Details Heltec WIFI Kit8:

• Type: HTIT-W8266
  
• Version: B
  
• Manufacturer: Heltec
  
• Controller: ESP8266
  
• OLED Controller: SSD1306
  
• OLED Resolution: 128x32Pixel
  
• USB-UART Converter: CP2104
  
• Connection: Micro-USB
  
• CPU: 80 MHz, 32Bit RISC
  
• RAM: 96kB
  
• Flash: 32MBit
  
• WiFi (Client, AccessPoint Mode)
  
• 10 digital IOPins, 1 ADC (10Bit)
  
• Integrated WLAN antenna
  
• Integrated LiPo battery charger for 3.7V Lipos
  
• Lipo battery connection: JST 1.25mm
  
• Dimensions: 51 x 18.2 x 8mm
  
• Weight: 8g
  

Package Content:

• 1x Heltec WIFI Kit8 Board ESP8266 32MBit
  
• 2x Header Strips 12x1p

Installing ESP8266 under Arduino: