ESP-01S 1MB WiFi ESP8266 - Serial Transceiver mq135 USB and DC input: Simple

USB and DC input: Simple power and programming options

6V Operating Current ~80 mA average Dimensions 14

This is an unassembled kit which means that soldering is required - but it’s very easy and a great introduction to soldering in general

which can tell you which direction is down towards the Earth (by measuring gravity) or how fast the board is accelerating in 3D space

Onboard 68K load resistor: Onboard 68K load resistor for max 3V analog output

ESP-01S 1MB WiFi ESP8266 - Serial Transceiver mq135 USB and DC input: SimpleAdd WiFi to Any Microcontroller via Serial Tiny, Low Cost, Proven The ESP 01S 1MB WiFi Serial Transceiver Module is the simplest way to add WiFi connectivity to an Arduino, STM32, PIC, or any microcontroller with a UART port. Send AT commands over serial and the ESP 01S handles all WiFi networking TCP connections, HTTP requests, UDP, and more without consuming your main MCU's resources. The "S" variant upgrades the original ESP 01 with 1 MB of flash