3pcs JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna
- Description
| 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
- Reviews (28)
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- Q & A
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: Where is the origin of Elecbee products? Are they certificated?2023-03-03
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Answer:
Elecbee has long-term cooperation agreements with the OEM factories in China. So that we are able to reduce the intermediate channel cost, and help you save money. Our products are all made strictly according to the relative global standard, to ensure the products have good compatibility and excellent quality.
2023-03-03
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: What forms of payment do you accept?2023-03-03
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Answer:
Our main payment methods include Paypal, Credit Cards, Debit Cards, Bank Transfer, and more to discover. Please choose the payment methods in your favor.
2023-03-03
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: When will you arrange shipment?2023-03-03
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Answer:
After confirming receipt of your payment. We will arrange the delivery as soon as possible and upload the courier number to the website for you to track.
2023-03-03
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: How to exchange or return?2023-03-03
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Answer:
1. You can apply to return within 30 days after receipt of the goods. Please make sure the outside package is intact, and the product is in its original condition. We will arrange your refund according to the relevant provisions once the package is received.
2. Return process: You Apply for a Return - Approve the Return - Arrange a Return - Receive the Products and make Inspection - We arrange a Refund;
3. We will bear the freight charges for returns caused by us, for instance, the quality problem. As to returns caused by the buyer, the buyer should be responsible for the shipping fee.
2023-03-03
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