Make a circuit using ch340c for esp32 writing (success). Ch340 usb to ttl serial cable Usb serial ch340 ttl adapter 3v communication converter 5v programming driver interface lna modem 4ghz 1100 wireless pa data
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Make a circuit using CH340C for ESP32 writing (success). | kohacraft's blog
CH340 USB to TTL Serial Cable
USB - TTL Serial Communication and Programming Adapter CH340 3.3V / 5V