HLK-RM08K is an embedded WiFi module conforming to network standards based on a universal serial interface, with a built-in TCP/IP protocol stack, which can realize the mutual conversion between serial port, Ethernet, and wireless network (WIFI) interfaces.
User Can quickly solve the user's serial device network transmission data problem, the traditional serial device does not need to change the configuration directly to the network.
Features：
| Network Parameters |
| Network Standard |
Wireless Standard：IEEE 802.11n、IEEE 802.11g、IEEE 802.11b |
| Wired Standard：IEEE 802.3、IEEE 802.3u |
| Wireless Transmission Rate |
11n:Up to 150Mbps
11g:Up to 54Mbps
11b:Up to 11Mbps |
| Channel Number |
1～11 |
| Frequency Range |
2.4～2.4835G |
| Transmit Power |
15～20dBm |
| Interface |
5 Ethernet ports, 2 serial ports, 1 USB port (host/slave), GPIO |
| Antenna |
| Antenna Type |
External Antenna |
| Functional parameter |
| WIFI Work Mode |
Wireless network card / wireless access point / wireless router |
| WDS Function |
Supports WDS wireless bridging |
| Wireless Security |
Wireless MAC address filtering |
| Wireless security function switch |
| 64/128/152-bit WEP encryption |
| WPA-PSK/WPA2-PSK, WPA/WPA2 security mechanism |
| Network Management |
Remote Web Management |
| Configuration file import and export |
| WEB software upgrade |
| Serial Port to Network |
| TCP Connection |
Maximum number of connections >20 |
| Serial port baud rate |
1200~2000000bps |
| Other Parameters |
| Status Indicators |
Status indication |
| Environmental Standard |
Operating Temperature： -20～70℃ |
| Operating Humidity: 10%~90%RH (non-condensing) |
| Storage Temperature: -40~80℃ |
| Storage Humidity: 5%~90%RH (non-condensing) |
| Other Performance |
Bandwidth optional: 20MHz, 40MHz, automatic |
Pin Definition
| Pin Num |
Function |
Pin Type |
Description |
| 1 |
CTS1/G0 |
I/O |
CTS1 or GPIO0 |
| 2 |
WDG |
O |
Watchdog |
| 3 |
CTSO/G1 |
I/O |
CTS0 or GPIO1 |
| 4 |
RTSO/G2 |
I/O |
RTS0 or GPIO2 |
| 5 |
RESO |
一 |
Reserve |
| 6 |
RES1 |
一 |
Reserve |
| 7 |
RES2 |
一 |
Reserve |
| 8 |
GND |
Power |
GND |
| 9 |
WLED_N |
O |
WiFiLED(Low Voltage Effective) |
| 10 |
VDD O |
Power Out |
3.3v |
| 11 |
EL4/G3 |
I/O |
ETH 4 LED or GPIO3 |
| 12 |
RES3 |
|
Reserve |
| 13 |
RES4 |
一 |
Reserve |
| 14 |
RES5 |
一 |
Reserve |
| 15 |
RES6 |
一 |
Reserve |
| 16 |
ES0 |
I |
ES0 |
| 17 |
TXN4/G4 |
A |
TX N4 or GPIO4 |
| 18 |
TXP4/G5 |
A |
TXP4 or GPIO5 |
| 19 |
RXPO |
A |
RXPO |
| 20 |
RXNO |
A |
RXNO |
| 21 |
TXP1/G6 |
A |
TXP1 or GPIO6 |
| 22 |
TXN1/G7 |
A |
TX N1 or GPIO7 |
| 23 |
RXP1/G8 |
A |
RXP1 or GPIO8 |
| 24 |
RXN1/G9 |
A |
RXN1 or GPIO9 |
| 25 |
RXP2/G10 |
A |
RXP2 or GPIO10 |
| 26 |
RXN2/G11 |
A |
RXN2 or GPIO11 |
| 27 |
TXP2/G12 |
A |
TXP2 or GPIO12 |
| 28 |
TXN2/G13 |
A |
TX N2 or GPIO13 |
| 29 |
TXP3/G14 |
A |
TXP3 or GPIO14 |
| 30 |
TXN3/G15 |
A |
TX N3 or GPIO15 |
| 31 |
RXP3/G16 |
A |
R XP3 or GPIO16 |
| 32 |
RXN3/G17 |
A |
R XN3 or GPIO17 |
| 33 |
RXP4/G18 |
A |
R XP4 or GPIO18 |
| 34 |
RXN4/G19 |
A |
R XN4 or GPIO19 |
| 35 |
TXNO |
A |
TXNO |
| 36 |
TXPO |
A |
TXP0 |
| 37 |
INT |
O |
Interrupt |
| 38 |
RX0 |
|
RX0,not left floating |
| 39 |
TXO |
O |
TXO |
| 40 |
RX1/PWM0 |
I/O |
RX1(not left floating) or PWM0 |
| 41 |
ELEDO |
O |
ETHO LED (Low Voltage Effective) |
| 42 |
RST |
I |
Reset |
| 43 |
ES1 |
I |
ES1 |
| 44 |
TX1/PWM1 |
I/O |
T X 1 or PWM 1 |
| 45 |
G20 |
I/O |
GPIO20 |
| 46 |
VCC |
POWER |
5V |
| 47 |
EL3/G21 |
I/O |
ETH 3 LED or GPIO21 |
| 48 |
EL2/G22 |
I/O |
ETH 2 LED or GPIO22 |
| 49 |
EL1/G23 |
I/O |
ETH 1LED or GPIO23 |
| 50 |
GND |
Power |
GND |
| 51 |
RES7 |
= |
Reserve |
| 52 |
RTS1/G24 |
I/O |
RTS1 or GPIO24 |
Package Include
Module: 1pcs HLK-RM08K, 2pcs Pin header
EVB Kit: 1pcs HLK-RM08K kit Board, 1pcs 12V power adaptor, 1pcs 2.4GHz Antenna
