JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna

JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna

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JDY-22 sleep pattern description:

Sleep patternInstructionsFunctional description
Start wake-upAT+STARTEN1Mode 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 sleepAT+STARTENOMode 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:


ProblemAnswer to the question
1: how MCU disconnects the bluetooth connection in the connection stateIn 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 upAll mode work current is not more than 1mA
3: How much data can be written to serial port onceNo 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 moduleIt is recommended to test the current of VCC and GND pins

Default parameter configuration used in factory:

SequenceFunctionFactory default parametersInstructions
1Serial port baud rate9600AT+BAUD4
2Sleep patternStart wake-upAT+STARTEN0
3Broadcast nameJDY-21AT+NAMHJDY-21
4Broadcast interval200MSAT+ADVIN1

Package included:

1 x JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna


JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna

JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna

JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna

JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna

JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna

JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna

JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna

JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna

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