In the old days, spies eavesdropped on each other using analog radio bugs ... a WiFi bug that was small and cheap besides. Enter the ESP8266 and some programming wizardry. [Sebastian] is using ...

It is equipped with 32 Inputs (16 x digital 4-30V, 8 x analog 0-10V, 4 x analog 0-5V ... 2 x RS232 serial port for HMI or other devices, ESP8266 based Wi-Fi and I2C bus for sensors or expansions.

pins (with up to six PWM outputs and six analog inputs) plus UART (with shared USB), TWI, and SPI. The Red board adds an Esperiff ESP8266 Wi-Fi module for designing IoT projects. The self-contained ...

The self-contained ESP8266 SoC integrates a TCP/IP protocol stack for connecting ... voltage of 3.3V and offers 54 digital IO pins (with up to 12 PWM outputs and 12 analog inputs), an 84MHz clock, and ...

He needed to fit in an ESP8266 module, an accelerometer breakout ... [tinkermax] used a neat device – the FSA3157 – which allows two analog inputs to be channeled to a single output ...