Usb to TTL converter

Bridges a computer's USB port to TTL-level serial, which is how you programme boards with no USB connector — bare ATmega chips, ESP-01 modules, LilyPad boards, ESP32-CAM — and how you read serial output from a running device. A small tool that quietly enables a large amount of work. Check that yours can supply 3.3V as well as 5V if you work with ESP modules, since most 3.3V boards need it. Programmes boards that have no USB connector; Reads serial output from running devices; 5V and 3.3V output pins for both logic families; Essential for ESP-01 and ESP32-CAM work