HLK-RM04 Uart Serial Port to Ethernet Wi-Fi Wireless Network Module - South Africa Arduino, Robotics & Electronics Supplier South Africa: R240.80
Leobot Electronics South Africa (Pretoria)
Waverley, Pretoria, South Africa
Nationwide delivery · Orders ready in 15 min · Stock shown is up-to-date · Collect or Deliver · 48h Delivery Time, · Free delivery for orders over R1000
Leobot Product Banner

Trusted Electronics Supplier in South Africa

Leobot Electronics is your trusted supplier for Arduino, robotics, IoT components, and electronic modules in South Africa. We stock a wide range of high-quality sensors, microcontrollers, modules, cables, and prototyping tools—ready for fast, nationwide delivery. Whether you're a hobbyist, student, or engineer, we provide the essential electronics you need to build, learn, and innovate. In addition to product sales, we offer custom development services including embedded systems, IoT design, CAD modelling, and smart device integration.

    • Leobot Electronics Online Shop

Leobot Arduino Nano Special Offer
HLK-RM04 Uart Serial Port to Ethernet Wi-Fi Wireless Network Module
  • HLK-RM04 Uart Serial Port to Ethernet Wi-Fi Wireless Network Module
  • HLK-RM04 Uart Serial Port to Ethernet Wi-Fi Wireless Network Module
  • HLK-RM04 Uart Serial Port to Ethernet Wi-Fi Wireless Network Module

#4403: HLK-RM04 Uart Serial Port to Ethernet Wi-Fi Wireless Network Module

R240.80


Serial to WIFI module, serial to Ethernet module, Ethernet to WIFI multi-function WIFI module, serial server module.

Integrated 10 / 100M adaptive Ethernet interface, serial communication maximum baud rate up to 230.4Kbps

Built-in 360M MIPS CPU, 16M RAM and 4M FLASH and wireless baseband and RF front end and a variety of peripheral bus

 

Supports IEEE 802.11 b / g / n via CE and FCC, supports transparent protocol data transfer mode

Support the vast majority of WIFI encryption and algorithms, WEP / WAP-PSK / WAP2-PSK / WAPI, encryption type WEP64 / WEP128 / TKIP / AES

AT + instruction set

Optional built-in onboard or external antenna

Support wireless work in AP mode and node (station) mode

Support network protocol: TCP / UDP / ARP / ICMP / HTTP / DNS / DHCP

Support DHCP automatically obtain IP

Product Details

Pinout

No.  Function   Direction   Explanation
1      VDD5V            A            5 Power input
2      GND           GND             Power ground
3      GND           G                 Serial sending
4      3.3V            I                 3.3V power output
5      LINK1        I/O               Net gape 1 LED indicte
6      USB_P                           USB signal
7     USB_M                           USB signal
8     I2S_SD                          I2C DATA/GPIO
9     I2S_CLK                        I2C CLK/GPIO
10   GIOP0        I/O               Universal GPIO
11   TXOP1        I/O               Net 1 TX-P
12   TXON1       I/O                Net 1 TX-N
13    RXIP2       I/O                Net 2 RX-P
14    RXIN2       I/O                Net 2 RX-N
15    RXIN1       I/O                Net 1 RX-P
16    RXIP1       I/O                Net 1 RX-P
17    TXON2      I/O                Net gape 2 TX-N
18    TXOP2      I/O                Net gape 2 TX-P
19    RTS_N       I                All function serial RTS
20    UART_RX   I                Simple serial RX
21    UART_TX   O               Simple serial TX
22    RXD           I                All function serial RX
 


Product Details

Est. Packaging Size Specifications

N/A

Tutorials

Arduino Automated Plant Water Project
A simple but practical Arduino project to automatically water your plants, showing the usage of a 7-Segment Display, a Soild Moisture Sensor, a Temperature Sensor and a Relay.

Arduino Introduction
Introducing you to the awesome Arduino!

Simple Arduino RC Car/Robot
A guide to construct your own Arduino-based 2 Wheel-Drive Robot

Arduino F.A.Q
Arduino Frequently Asked Questions & Answers

BUY

HLK-RM04 Uart Serial Port to Ethernet Wi-Fi Wireless Network Module

Regular price: R240.80
Qty To Purchase:
In Stock: 2





GET NOTIFIED!

Get notified when new stock arrives! Simply provide your email address:


Email Address:



Bulk/Direct Imports!

Want more stock than we have on-hand? Let us import this product in bulk for you! Bulk Direct Import




Categories