It provides realistic current draw figures:
To make the ESP-01 usable, you also read: esp01 datasheet
You can find the official ESP01 datasheet on the Espressif Systems website or other online repositories. The datasheet provides detailed information on the module's electrical characteristics, pinout, and software interfaces. It provides realistic current draw figures: To make
This is where the datasheet fails many beginners and even intermediate users. | GPIO0 | GPIO2 | GPIO15 (not on ESP-01
| GPIO0 | GPIO2 | GPIO15 (not on ESP-01!) | Mode | |-------|-------|------------------------|------| | 1 | 1 | 0 | Boot from Flash (Normal run) | | 0 | 1 | 0 | UART Download (Firmware upload) | | Missing: SDIO boot modes, effect of GPIO15 (not exposed on ESP-01, but tied to GND internally)
The datasheet assumes you know how to connect an FTDI adapter. It does show: