18650 Battery Pack Cell Insulating Pads Insulated gaskets for 18650 Li-ion batteries, designed to provide electrical insulation and protection. Suitable for battery pack assembly and safety enhancement. ESP32 Development Board with WROOM-32U or WROVER Module A versatile development board compatible with ESP32-WROOM-32U and WROVER modules. Features WiFi connectivity with optional 2.4G antenna support. Designed for IoT applications and wireless development projects. LCR-T4 Transistor Tester and Component Meter High-quality LCR meter capable of testing transistors, diodes, triodes, capacitors, inductance, and SCR components. A reliable tool for electronic component analysis and troubleshooting. D1 Mini ESP32 Development Board Compact IoT development board based on ESP8266 architecture, supporting WiFi and Bluetooth functionality. Designed for internet of things applications and prototyping. DC-ATX 120W Power Module Durable DC-ATX power conversion board designed for high-power applications. Operates with input voltage range of 16-27V and includes 24-pin output for compatibility with various systems. NodeMCU V3 Wireless Development Board Lua-based IoT development platform built around the ESP8266 ESP-12E module. Features CH340 USB-to-serial converter and supports WiFi connectivity. Optional Type-C acrylic enclosure available. ESP32 WiFi and Bluetooth Development Board Development board featuring ESP32 chip with integrated WiFi and Bluetooth capabilities. Available with Type-C interface and optional acrylic case for protection and mounting. ESP32 REV1 Development Board with Battery Interface Dual USB interface (Type-C and Micro USB) development board with lithium battery charging capability. Supports MicroPython programming and features onboard WiFi and Bluetooth modules. ESP32-WROOM-32U Module with Optional Antenna Compact WiFi module based on ESP32 chip, available with or without 2.4G antenna. Designed for integration into custom circuits and development platforms. Product Dimensions: 48.1 x 27.8mm The ESP32 DevKitC is an entry-level development board with all ESP32 pins broken out for easy access. Ideal for evaluation of ESP32 modules and chips, and suitable for breadboard use. Package Includes: 1 x WROOM-32U development board OR 1 x antenna OR 1 x WROOM-32U development board + 1 x antenna