Wireless Relay Power Control PCBA

The Wireless Relay Power Control PCBA is designed for connected equipment that needs wireless communication, power switching, and device control on a single circuit board. The board holds a wireless communication section, MCU-based control circuits, relay switching, serial communication, and AC power interfaces. It fits as an internal control board for equipment that needs remote communication and electrical load management. The PCBA uses an FR-4 substrate with a yellow solder mask. The board carries components on both sides and joins compact SMD circuits with larger through-hole devices. The visible control section holds a main MCU, wireless communication module, driver ICs, voltage regulation components, resistors, capacitors, and LED indicators. The TXD and RXD markings provide clear serial communication points for signal transmission and debugging. Wireless connectivity sits directly in the control architecture. The communication module works with the MCU to receive or transmit…