You MUST make sure the data (RX and TX) and VCC pins are set for 3.3V. Some adapters can be switched between 3.3V and 5V for the data pins, but still provide 5V on the power pin which will irreparably destroy your device.

RaspberryPi - only for advanced users.

NodeMCU You can also use a NodeMCU (or similar) as a reliable serial-to-USB adapter if you disable the onboard ESP by bridging GND to the RST or EN pin, and connect TX and RX straight to another ESP82xx instead of crossed.

CP2102 or PL2303 - works with certain devices, but using an external 3.3V supply might be necessary.

Buy only the variant with a separate 3.3V regulator on PCB!

FTDI FT232 - these adapters have a lot of fakes in the market so buy only from reliable sources ( example).

RECOMMENDED CH340G is the most reliable and the cheapest one to boot ( 1, 2).

You must ensure that the device receives sufficient power (current AND appropriate voltage level) to properly flash the firmware on the device. The power supplied to the device is one of the most important elements for both flashing the device and for stable operation. Getting Started Prerequisites ~ Needed Hardware ~Įvery Espressif ESP8266, ESP8285, ESP32, ESP32-S or ESP32-C3 chipset based device can be flashed with Tasmota.

VL53L0X and VL53L1X laser ranging modules.

RCWL-0516 microwave radar motion sensor.

MLX90640 Far infrared thermal sensor array.

MGC3130 3D tracking and gesture controller.

Honeywell HIH temperature and humidity sensor.

BME680 temperature, humidity, pressure and gas sensor.

BME280 temperature, humidity and pressure sensor.

AHT1x/AHT2x and compatible temperature and humidity sensor.

Smart Home Integrations Smart Home Integrations.Getting Started Getting Started Table of contents.

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