Description
Product introduction:The JDY -18 transmission module is based on the bluetooth 4.2 protocol standard, the working band is 2.4GHZ, the debugging mode is GFSK, the maximum transmission power is 0dB, the maximum launch distance is 60 meters. The imported original chip is designed to support the user to modify the equipment name, service UUID, transmit power, match the password and so on by AT command, convenient and quick. Use flexibly.
JDY-18 bluetooth module can realize the data transmission of module and cell phone and module, can choose UART or IIC communication mode through IO, and can use BLE bluetooth for product application quickly through simple configuration.
JDY-18 advantage:
1: JDY-18 uses BLE 4.2 protocol development compatibility BLE5.0, and mobile phone compatibility is better than CC2541 module.
2: the peak current of TX and RX is 5 to 6mA, and the peak current of CC2541 is more than ten MA. In the low power consumption, JDY-18 is more power saving and lower power consumption, such as electronic lock, or battery powered products.The JDY-18 module is generally recommended, and the average power consumption is at least half of JDY-08! It can also be used to transfer pictures on the printer!
3: The large transmission rate of the JDY-18 module is more than 8K per second. The master and slave communication supports 115200 baud rates to receive and receive continuously, and does not lose the packet. The serial test tool uses SSCOM test.
4: JDY-18 supports UART or IIC communication interface, which can be applied to lower cost MUC applications.
5: JDY-18 supports SIG standard MESH and JDY-16M supports MESH networking.
6: JDY-18 operation speed, performance, great promotion!
Module parameters:
JDY-18 Product introductionModelJDY-18Working frequency band2.4GEmissive powerOdb (maximum)Communication interfaceUART or IICWorking level1.8V-3.3VWorking temperature-40?-80?Antennabuilt-in PCB antennaBroadcast instructionBoard broadcast indicator LED lampReception sensitivity-97dbmTransmission distance60mbluetooth versionBLE4.2(compatibleBLE4.0,BLE4.1)Transmission rate115200 bps/sWake-up state current4.9mA (broadcast)Shallow sleep state current<300uA (broadcast)Deep sleep current0.8uA (broadcast)Instruction parameter preservationParameter RTD set off electrical data to saveSTM welding temperature<300?
Working current:
Working modeBroadcast stateCurrentRemarkWake upbroadcast4. 9mAGenerally speaking with APP, it is suggested that broadcasting do not set M too long and too long to affect connection time. It is generally recommended between 100 and 500mS, such as fast connection and no demand for power consumption, and the shortest broadcast interval of M to the shortest distance.Deep sleep free sleepNo broadcast1.38uAShallow sleep has radio sleep100ms Broadcast interval280uAAverage power consumption200ms Broadcast intervalllOuA300ms Broadcast interval30uA400ms Broadcast intervalThe following current is lower500ms Broadcast interval600ms Broadcast interval700ms Broadcast interval800ms Broadcast interval900ms Broadcast interval1000ms Broadcast intervalinternal state of arousalSelf connection4. 93mAYou can check the AT+STARTEN instructions by connecting the PWRC pins with the AT pins or setting the M mode directly.Sleep stateSelf connection50uA
Pin definition:
Pinfunctiondescription1TXD_DCSELECT boot for high power, this pin function is string n TXD SELECT boot for low power, this pin function is IIC DD2RXD_DDSELECT boot for high power, this pin function is string n RXD SELECT boot for low power, this pin function is IIC DC3CTSThe effectiveness of serial flow control4RTSThe effectiveness of serial flow control5NULL 6NULL 7roilPWM supports UART, IIC, and APP control8PWM2PWM supports UART, IIC, and APP control9PWM3PWM supports UART, IIC, and APP control10PWM4PWM supports UART, IIC, and APP control11RESETHardware reset pin12VCCPower supply (1.8-3. 3V)13GNDPower supply14PWRCDown wake-up, when the AT instruction is needed in the connection state, the AT instruction mode can be expressed by keeping this pin low level, and the pin is AT instruction mode at high and low levels in the rice connection state.15ALEDBroadcast scintillation, frequent connection after connection (master and slave effectiveness)16STATUAKT communication mode: unconnected low level, high level after connection.
IIC communication mode: no connection level, connect, disconnect or receive data will work in interrupt mode, interrupt down edge hold time 200ms17SELECTUART or IIC select pin boot low level: IIC communication mode boot high level: UART communication mode.
The default SELECT is suspended to high level: UART communication mode. When the user needs IIC, the SELECT pin should be grounded.18103High and low levels can be controlled by APP19102High and low levels can be controlled by APP20101High and low levels can be controlled by APP21NULL 22NULL 23NULL 24NULL 25NULL
Package included:
3 x JDY-18 bluetooth Module
