About this item

The BIGTREETECH BTT ESP-07S is a high-performance WiFi module based on the reliable ESP8266 chip, designed to add wireless connectivity to 3D printer control boards such as the SKR 2, SKR V1.4, and Octopus V1.1. It enables users to control, monitor, and manage their 3D printer remotely through web interfaces like OctoPrint, Mainsail, or Fluidd, especially in Klipper setups. Unlike the standard ESP-01S, the ESP-07S features an external antenna interface, allowing for stronger and more stable WiFi signal reception, particularly useful in environments with interference or enclosed printer setups. It communicates with the mainboard via a UART serial connection, making integration straightforward. The module supports 2.4 GHz WiFi (802.11 b/g/n) and is known for its low power consumption, small size, and high reliability. It’s a perfect solution for users looking to eliminate SD card transfers and access their printers remotely for uploading files, starting prints, and viewing real-time progress. Ideal for enthusiasts, makers, and advanced users, the BTT ESP-07S offers an affordable and powerful upgrade to modernize your 3D printing workflow.