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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.
Tags: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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