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 introduction |
| Model |
JDY-18 |
| Working frequency band |
2.4G |
| Emissive power |
Odb (maximum) |
| Communication interface |
UART or IIC |
| Working level |
1.8V-3.3V |
| Working temperature |
-40℃-80℃ |
| Antenna |
built-in PCB antenna |
| Broadcast instruction |
Board broadcast indicator LED lamp |
| Reception sensitivity |
-97dbm |
| Transmission distance |
60m |
| Bluetooth version |
BLE4.2(compatibleBLE4.0,BLE4.1) |
| Transmission rate |
115200 bps/s |
| Wake-up state current |
4.9mA (broadcast) |
| Shallow sleep state current |
<300uA (broadcast) |
| Deep sleep current |
0.8uA (broadcast) |
| Instruction parameter preservation |
Parameter RTD set off electrical data to save |
| STM welding temperature |
<300℃ |
Working current:
| Working mode |
Broadcast state |
Current |
Remark |
| Wake up |
broadcast |
4. 9mA |
Generally 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 sleep |
No broadcast |
1.38uA |
| Shallow sleep has radio sleep |
100ms Broadcast interval |
280uA |
| Average power consumption |
200ms Broadcast interval |
llOuA |
| 300ms Broadcast interval |
30uA |
| 400ms Broadcast interval |
The following current is lower |
| 500ms Broadcast interval |
| 600ms Broadcast interval |
| 700ms Broadcast interval |
| 800ms Broadcast interval |
| 900ms Broadcast interval |
| 1000ms Broadcast interval |
| internal state of arousal |
Self connection |
4. 93mA |
You can check the AT+STARTEN instructions by connecting the PWRC pins with the AT pins or setting the M mode directly. |
| Sleep state |
Self connection |
50uA |
Pin definition:
| Pin |
function |
description |
| 1 |
TXD_DC |
SELECT boot for high power, this pin function is string n TXD SELECT boot for low power, this pin function is IIC DD |
| 2 |
RXD_DD |
SELECT boot for high power, this pin function is string n RXD SELECT boot for low power, this pin function is IIC DC |
| 3 |
CTS |
The effectiveness of serial flow control |
| 4 |
RTS |
The effectiveness of serial flow control |
| 5 |
NULL |
|
| 6 |
NULL |
|
| 7 |
roil |
PWM supports UART, IIC, and APP control |
| 8 |
PWM2 |
PWM supports UART, IIC, and APP control |
| 9 |
PWM3 |
PWM supports UART, IIC, and APP control |
| 10 |
PWM4 |
PWM supports UART, IIC, and APP control |
| 11 |
RESET |
Hardware reset pin |
| 12 |
VCC |
Power supply (1.8-3. 3V) |
| 13 |
GND |
Power supply |
| 14 |
PWRC |
Down 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. |
| 15 |
ALED |
Broadcast scintillation, frequent connection after connection (master and slave effectiveness) |
| 16 |
STAT |
UAKT 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 200ms |
| 17 |
SELECT |
UART 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. |
| 18 |
103 |
High and low levels can be controlled by APP |
| 19 |
102 |
High and low levels can be controlled by APP |
| 20 |
101 |
High and low levels can be controlled by APP |
| 21 |
NULL |
|
| 22 |
NULL |
|
| 23 |
NULL |
|
| 24 |
NULL |
|
| 25 |
NULL |
|
Package included:
10 x JDY-18 Bluetooth Module
Availability: 
Shipping: Free Airmail 
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