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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 ...
Note, ESP8266-12F is an enhanced version of ESP8266-12E ... However, note that, since the ESP-12E chip has a single analog input, only A0 is available on the D1 boards, and all other analog pins are ...
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.
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 ...