Showing entries with tag "ESP8266".

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Comparison table for ESP boards

Simplified table of ESP boards with components I care about.

ESP8266 ESP32 ESP32-S2 ESP32-S3 ESP32-C3
GPIO 17 34 43 45 22
CPU 1x @ 160Mhz 2x @ 240Mhz 1x @ 240Mhz 2x @ 240Mhz 1x @ 160Mhz
Architecture Tensilica Tensilica Tensilica Tensilica RISC-V
RAM 160K 520K 320K 512K 400K
Touch Pins 0 10 14 14 0
Bluetooth No 4.2 No 5.0 5.0
USB OTG No No Yes Yes No

More details and Espressif product comparison

Note: Assume about eight pins are used internally to connect flash and other peripherals.

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Wemos D1 mini Pin mapping

I've been using the Wemos D1 mini for several home automation projects. Unforunately the pin designations on the board don't match what Tasmota uses. I was able to track down the Wemos D1 mini pin mappings to create a cheat sheet.

Label GPIO
D0 16
D1 5
D2 4
D3 0
D4 2
D5 14
D6 12
D7 13
D8 15
RX 3
TX 1
A0 ADC0

Bolded pins can be used for any project without limitation, other pins can be used but may have some limitations.

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