asd234:
Is can "JDY-08" module works with Bluetooth v2.0 or Bluetooth v1.2?PS: I want use this module with Bluetooth v2.0 usb dongle(based on ht6630) or Android phone with Bluetooth v4.0 pair.
Not sure which module I should choose "JDY-08 BLE Bluetooth v4.0 based on CC2541" or "SPP Bluetooth V2.1+EDR based on bk3231".
Bluetooth LE (4.0~) is not compatible Bluetooth legacy(~3.0).
But the most of Bluetooth LE Dongles (master) support Dual mode (support both 'LE' and legacy).
In this case, you can not use it with a USB dongle but android phone.
You could buy Bluetooth 2.1 module or upgrade the USB dongle.
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kutysam:
Btw, just curious, you managed to flash it to hm10 firmware right?
Shouldn't it be a hm11 instead?And in addition to this, after flashing, are you able to run AT+SLEEP ?
Because HM-11 is smaller than HM-10, has less IO ports.
In this matter, we would be better to use HM-10 firmware than HM-11.
Anyway you can use HM-10 firmware but there is no benefit.
And.. I didn't test SLEEP.
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moisesmagno:
After proceed with a firmware update on JDY-08 to the HM-10 official one (following 1saac_k guides) and a lot of time unsuccessfully spent trying to send AT commands to the module, I've figured out that the following must be done:System KEY function (PIO0):
Long press system KEY >=1000 ms.
After wake up module, you can send and receive AT commands.
hmm... strange. I'm configuring without pulling down System Key.
I'll take a look at whenever this problem reproduced. Thanks 
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Luisk87:
HI, someone has the PINMAP of the JDY-10 Bluetooth LE Module, I need to locate the PIN RESET?
JDY-'10'..? Did you mean JDY-08 with HM-10 firmware?
Refer an attachment "JDY-08 + HM-10 firmware.png" (third post)