![]() Now we have to connect the module to the FT232 USB adapter. For this, it is important that we know the pin assignment of our ESP module.įor the two ESP-01 and ESP-12 I have inserted the pin assignment here: Top view of the ESP8266 NodeMCU ESP-01 ( source) ESP8266 NodeMCU ESP-12 PinoutĪn assignment of all models (ESP-05, ESP-07, etc.) can be found here. Without such a board we have to use the USB-TTL adapter. With the development board, it is sufficient to connect a micro USB cable. If you want to recreate the example at the end, you should also have a few LEDs there.įirst of all, we have to connect the ESP8266 to a USB port on our computer. If you don’t have an integrated board, you need the following: due to space constraints), you can also purchase this separately. ![]() If you only need the module without a development board (e.g. The NodeMCU ESP-12 module has the advantage that it can be connected via a MicroUSB cable and has a reset button.This and all upcoming tutorials will be compatible with both versions. The latter is also available as a “development board”, which makes adapters unnecessary.īefore we start, you should make sure which version is suitable for you. If more hardware pins are needed, the ESP-12 is the better choice. This should be sufficient for minimal applications. There are different models of the ESP8266, the cheapest (ESP-01) only has four GPIO pins. This tutorial is about the introduction as well as the general setup and first start with an ESP8266 NodeMCU. In upcoming tutorials, we want to use the inexpensive ESP8266 modules to send data via a Wifi connection to the Raspberry Pi, which acts as the “core”. This and the low price make it very interesting compared to Arduinos, for example. The ESP8266 NodeMCU is a small microcontroller that has GPIOs and can connect to the Internet via WLAN.
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