MAX7219 4 in 1 Dot Matrix Display Module 6dBi 2.4GHz 5GHz Dual Band WiFi SMA Antenna +165mm U.fl-IPEX Cable and industrial applications where connection

and industrial applications where connection reliability is non-negotiable

GPIO multiplexing

creating clean connections that make circuit tracing and debugging dramatically easier

Onboard SIM Card Holder: Integrated SIM slot for quick insertion of a Nano/Micro SIM card - no external adapter required

Specification Details Product Type 16 Channel WiFi Controlled Relay Module Brand HLK (Hualing) Origin Original/Authentic Warranty 7 days on manufacturing defects Shipping 1-5 days from Bengaluru Delivery 7-8 days across India Support 24/7 via Email and WhatsApp Number of Channels 16 Independent Relay Channels AC Switching Capacity 250V/10A per channel DC Switching Capacity 30V/10A per channel WiFi Standard 802

MAX7219 4 in 1 Dot Matrix Display Module 6dBi 2.4GHz 5GHz Dual Band WiFi SMA Antenna +165mm U.fl-IPEX Cable and industrial applications where connectionMAX7219 4 in 1 Dot Matrix Display Module Drive stunning scrolling text, animations, and real time data displays with the MAX7219 4 in 1 Dot Matrix Module. This cascaded 32x8 LED matrix panel uses the MAX7219 driver IC for effortless SPI control with just 3 data pins from any Arduino, ESP32, or Raspberry Pi. Available at The Engineer Store, Bengaluru fast shipping, 7 day warranty on manufacturing defects, and dedicated technical support. Specifications