Building a Shelly 2.5 USB to TTL adapter cable

When you want to flash your Shelly 2.5 with anything but the original firmware for the first time, you

USB to Serial TTL V2 : 3 Steps - Instructables

My Blog Setting up the Shelly 2.5 WIFI Relay for installation

VoltLink is a Type-C USB to serial adapter & programmer for ESP32 devices with auto-reset functionality

VoltLink CP2102N USB Serial Adapter & Programmer

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RevK®'s ramblings: To USB or not to USB, that is the question!

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HOW TO MAKE USB to TTL CONVERTER (CH340) : 7 Steps - Instructables

Delock Products 84957 Delock Converter USB 2.0 male > TTL 6 Pin WR-WTB 2,2 m (3,3 V)

Micro USB Console Adapter Cable CP2102 USB TTL Serial to Micro USB for Extreme WiFi 6 Wireless Access Point - AliExpress

Building a Shelly 2.5 USB to TTL adapter cable

USB to RS485 TTL Serial Converter Adapter Module FT232 - DIYElectronics