2 Channel 5V Relay Module ESP32 4M Flash Large Capacity Programmable Relay Board for Study and Development DC5-60V

2 Channel 5V Relay Module ESP32 4M Flash Large Capacity Programmable Relay Board for Study and Development DC5-60V leírása

Mature and stable 2 channel 5V relay module based ESP32 with 4M byte flash, designed for users who need reliable secondary development and learning. All I/O and the UART program download port are led out, making it easy to connect sensors, actuators and external circuits in home and automation projects.
Equipped with integrated WiFi and BLE wireless communication modules, this relay board allows you to build IoT applications such as remote control, mobile phone app control and cloud linkage. The onboard wireless functions support flexible networking and firmware updates, ideal for DIY home systems and teaching experiments.
Features two 5V relays with isolated output switching, suitable for controlling loads with operating voltage to AC 250V or 30V or less. The relay outputs provide safe and reliable switching for lamps, motors, pumps and other electrical equipment, helping you easily create practical control circuits and automation solutions.
Built‑in 4M large‑capacity flash memory offers ample space for firmware, programs and user data, so you can flexibly expand functions according to the actual application. Whether you are developing complex logic control or multiple communication protocols, the generous storage ensures stable operation and convenient upgrades.
Ideal for secondary development learning, home control, IoT experiments and engineering verification. With programmable keys and reset keys, it is convenient for debugging and testing. Suitable for makers, students, engineers and DIY enthusiasts who need a versatile, programmable relay module for practical projects.

Color: As Shown
Material: plastic

Package Contents:
1*Relay module