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3pcs JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna
3xSKU996767
2 Reviews
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14.99
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Description
- weight: 485 g
| Sleep pattern | Instructions | Functional description |
| Start wake-up | AT+STARTEN1 | Mode 1: wake up call, users need sleep can be controlled by AT+SLEEP command, wake up can be awakened by PWRC pin low level. |
| Start sleep | AT+STARTENO | Mode 0: the power is very low under this mode. The connection calls the permeable transmission current at 900uA, disconnects the connection current below 200uA (can set the broadcast interval current to 30uA), this mode PWRC pin wake up, such as the serial port in 10 seconds without data or will not be connected to sleep automatically again into sleep |
Common problem description:
| Problem | Answer to the question |
| 1: how MCU disconnects the bluetooth connection in the connection state | In the connection state, the PWRC pin is pulled down, and the serial port sends AT+DISC to disconnect. |
| 2: how much is the current when the module wakes up | All mode work current is not more than 1mA |
| 3: How much data can be written to serial port once | No byte limit at 9600 baud rate |
| 4: After the serial port is configured, do you need to restart it to take effect? | It is recommended to restart the module when the parameters are set |
| 5: How to test the depth of sleep current in the test module | It is recommended to test the current of VCC and GND pins |
Default parameter configuration used in factory:
| Sequence | Function | Factory default parameters | Instructions |
| 1 | Serial port baud rate | 9600 | AT+BAUD4 |
| 2 | Sleep pattern | Start wake-up | AT+STARTEN0 |
| 3 | Broadcast name | JDY-21 | AT+NAMHJDY-21 |
| 4 | Broadcast interval | 200MS | AT+ADVIN1 |
Package included:
3 x JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna
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customers reviews ( 2 )
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By peath
1個が動作不良。
データシート。
https://pan.baidu.com/s/1alub7gi9Qa1BJMRDjI4DQQ
2019-04-09 00:00:00
By rogerr
I did some track tracing from some pictures of JDY-21 that apparently uses the same chip . JY01S512E ( could not find any documentation on this on google ).
Can someone please confirm the pinouts I came up with . Please dont use this till someone has confirmed the pinouts .... I havent tested yet.
2018-12-15 00:00:00
