Flash only with ESP32-C3 tasmota32c3... binaries.

This module is pin compatible with ESP-01(S) modules.

Onboard LED is on GPIO03.

Flashing

To put the module in flash mode pull GPIO9 low before powering on. GPIO8 is already pulled high.

Flash using Tasmota Web Installer using Tasmota32c3 4M Flash option.

If using esptool.py download required files and tasmota32c3.bin and put them in the same folder.

esptool.py --chip esp32c3 --baud 460800 --before default_reset --after hard_reset write_flash -z --flash_mode dout --flash_freq 40m --flash_size detect 0x0000 bootloader_dout_40m.bin 0x8000 partitions.bin 0xe000 boot_app0.bin 0x10000 tasmota32c3.bin

You can purchase (AliExpress, Amazon, Banggood) a test board for effortless flashing. Just drop the module in, plug in the USB cable and flash!