Arduino HM-11 User Manual

ElectricalCharacteristics
Specification Min Typ Max Unit
MaxInputVoltage -0.3 3.6 V
WorkingInputVoltage 2.0 3.3 3.6 V
TransmitCurrent 15 mA
ReceiveCurrent 8.5 mA
DeepSleepCurrent 600 uA
OperatingTemperature -40 +65 °C
Pindefinition
Pin Name Description
1 UART_RTS UART
2 UART_TX UART
3 UART_CTS UART
4 UART_RX UART
5 NC
6 NC
7 NV
8 NV
9 VCC Powersupply3.3V
10 NC
11 RESETB Reset,activelowatleastin5ms
12 GND GND
13 PIO3 IOport,usedforconnecttoDHT11/DS18B20
14 PIO2 Digitalinput,output
15 PIO1 LEDindicator
16 PIO0 Buttonpin
ATcommands&Configuration
1）QuerythenativeMACaddress
Send:AT+ADDR?
Sendafterasuccessfulreturn:OK+LADD:MACaddress(addressfor12string)

Arduino HM-11 Specifications

General

Brand	Arduino
Model	HM-11
Category	Control Unit
Language	English