I am text block. Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
HLK-RM04 UART to Serial Wifi Ethernet Wifi Module
₹890.00 Original price was: ₹890.00.₹750.00Current price is: ₹750.00. inc. GST
- 2.4GHz 802.11b/g/compatible
- Support IEEE 802.3、IEEE 802.3u
- Wi-Fi Client/AP/Router Mode
- Support WPS/wds
- Baud rate range: 1200~500000bps
- Support transparent transmission mode
- Support multiple security authentication mechanisms: WEP64/WEP128/ TKIP/ AES & WEP/WPA-PSK/WPA2-PSK
- Support multiple network protocol: PPPOE/TCP/UDP/DDDNS & /DHCP/DNS/HTTP/Firewre
- Support AT+ instruction set
- Support two configuration methods: Serial/WEB
- Serial speed ratio adjustable up to 320400
- Transparent dual-way data transmission
- Integrated 10/100M Ethernet port, Max. baud ratio up to 230.4kbps
- Adopts Ralink program, high-quality material
- Built-in 360M MIPS CUP, 16M RAM, 4M FLASH, wireless baseband, RF front-end, and multi-peripheral bus
- Support IEEE 802.11 b/g/n, transparent protocol data transmission mode
- TCP server/TCP Client/UDP work mode, support network protocol: TCP / UDP / ARP / ICMP / HTTP / DNS / DHCP
- Support DHCP auto gain IP, support IP distribution at AP Mode
- Built-in antenna or external antenna
- Dimensions: 29mm*40mm* 8.8mm
This is HLK-RM04 UART to Serial Wifi Ethernet Wifi Module. HLK-RM04 was designed based on a low-cost UART-ETH-WIFI module (serial port – Ethernet -Wireless network). Thus this embedded module is designed based on the universal serial interface network standard, with a built-in TCP / IP protocol stack. As a result, enabling the user serial port, Ethernet, wireless network (wifi) interface between the on versions. This module provides a quick and ideal solution for the user’s serial devices to transfer data via Ethernet. HLK-RM04 through the module, there is no need for any traditional serial devices to change any configuration. Hence the data can be transmitted through the Internet network.
The HLK-RM04 module designed with a completely developed component provides a fully integrated solution for applications. It supports the IEEE802.11 standard in the 2.4-2.5GHz ISM frequency band, including802.11b/g/n. And also supports IEEE802.3 designs. Meanwhile, the modules integrate all of the RF components required, eliminating the need to perform expensive RF design and test. Therefore, Simply connecting sensors and switches to the module IO pins or UART interface can design products. Moreover, the modules make use of Ralink’s chip Wireless Microcontroller, allowing designers to make use of the serial interface to connect with their device.
Hence, this module allows designers to use a wide range of applications in minimum time with significantly reduced development effort and cost.
Applications:
- WiFi Led Control
- WiFi Power Switch
- Home and Commercial building automation
- OBDII WiFi Diagnose
- RFID Data Transfer
- Toys and gaming peripherals
- Industrial systems
- Telemetry
- Remote Control

Related products
1 CHANNEL 12V RELAY
- 1-Channel relay interface board
- Operating voltage: 12V DC
- Provide high current relay of 15A
- For quick and easy connection high-quality screw terminals provided
- Can control both AC & DC appliances
- LED status indicates relay ON/OFF state.
- High current relay of 10A @250 V AC/10A@ 30V DC
- Standard interface that can be controlled by a microcontroller (Arduino, 8051, PIC, AVR, DSP, ARM)
- For easy accessibility input signal pin connected to burg sticks
- Dimension: 43*17*17mm
- Weight: 150gm
1 CHANNEL 5V RELAY
- 1 channel relay board
- Operating voltage: 5V
- Maximum current: 2 A
- Relay contact current capacity of 10A @250 V AC/10A@ 30V AC
- configured as SINGLE POLE DOUBLE THROW( SPDT)
- LED status indicates relay ON/OFF state.
- Standard TTL level logic controlled
- One normally closed and one normally opened contact
- Compatible with any 5V microcontroller
- Dimension: 43*17*17mm
- Weight: 150gm
16 CHANNEL 5V RELAY
- 16 channel 5V relay board
- Operating voltage: 5V
- Supply current: 500mA
- Relay contact current capacity of 10A @250 V AC/10A@ 30V AC
- Optocoupler protection
- Low state voltage: 0V to 0.5V (relay is ON)
- High state voltage: 3.7V to 5V(relay is OFF)
- Single-chip design with reliable performance
- Strong anti-interferences
- Strong anti-jamming ability and stable performance
- The on-board power supply module doesn’t need any external power
- Common terminal(com) in each rely is user friendly and can be accessed by different signal
- Dimension: 180*90*20mm
- Weight: 100gm
4*3 MATRIX KEYPAD
- Operating voltage: 12V DC
- The maximum voltage across each button: 24v
- The maximum current across each button: 3mA
- Ultra-thin design
- Adhesive backing provides easy integration
- Easy communication with any microcontroller
- Flexible
- Only 7 microcontroller pins required to access 12 keys
- High price-performance ratio
- Allows microcontroller to scan 8 output pins to check which 16 button
- Long life
- Maximum operating temperature: 0 degrees to 50 degrees Celsius
- Dimension: 70*77*1mm
- Weight: 7.5gm
CURRENT SENSOR ACS712 30AMPS
- Current sensor chip: ACS712ELC-30A
- Supply voltage: 4.5V to 5.5V DC
- Current range: -30A to 30A
- Sensitivity: 66 millivolt/ampere
- Low noise analogue signal path
- Output rise time: 5 micro sec
- Extremely stable output offset voltage
- Zero magnetic hysteresis
- Factory trimmed for accuracy
- Easy to interface with a microcontroller, since it outputs an analogue voltage
- Onboard power indicator
- Dimension: 7*5*5cm
- Weight: 400gm
DC-DC BOOST MODULE 0.9V-5V/5V 600MA USB MOBILE Power Supply Module
- Ultra-compact PFM chip
- Module properties: nonisolated step-up module
- Input voltage: 1v-5v
- Output voltage: 5.1v-5.2V
- Output current: rated 1A-1.5A
- Efficiency: 96%
- Output ripple: 30mv for 20M bandwidth
- Switching frequency: 500khz
- Voltage indication for led lights with load( for less than 2.7v led indicator off)
- Operating temperature:-40 degrees to 85 degrees Celsius
- Full load temperature rise: 30 degrees Celsius
- Quiescent current: 130ua
- Load regulation: +/-1%
- Voltage regulation: +/-0.5%
- Dynamic response speed: 5% 200Us
- Short circuit protection
- Reverse polarity protection
- Dimension: 2.5*1.8*1.8gm
- Weight: 400gm
JOYSTICK MODULE
Prototype Shield V3.0 For Arduino Mega with breadboard
- The shield can support being fully assembled with Arduino MEGA
- Support soldering components directly on this shield
- Support sticking the mini breadboards on this shield
- Reset button up top
- Mainboard aureate quadrate
- With SOP28 SMT components encapsulation
- With PWR & STAT indicator
- Breadboard Points : 170
- Shield Size (mm) : 102×56
- Breadboard Size (mm) : 48×34
- Weight (gm) :35

Reviews
There are no reviews yet.