I’d like to share some stuff about JDY-08 BLE module.
I made Fritzing part and translate datasheet using google translation and refine format.
- fritzing part → refer attachment
- datasheet → https://docs.google.com/document/d/14mHWT3GhELCj-6yxsam0k5bjzazq8nnPoz4B_gYh04k
If you ever heard about JDY-08, let me a summary about Bluetooth modules for Arduino.
I think HC-05 and HC-06 are the most popular Bluetooth module.
But these are Bluetooth 2.0 + EDR.
In BLE (Bluetooth Low Energy) domain, HM-10 is popular. And there are many clone models like AT-09.
These modules can be found at Aliexpress or any Chinese market.
These module using same Bluetooth LE chipset that is Ti CC2541.
And circuit is very similar. But, be careful about the difference of firmware. AT command also different.
(Some alternatives of CC2541 are Nordic nRf51822, Dialog DA14580)
Another BLE module, HM-11 has small form factor. And maybe JDY-08 is clone of it.
So, the main pros of JDY-08 are the price. It’s just $1.64 and really works.
When Aug. 13, the lowest price of JDY-08 was about $2.1 and after a month it dropped to $1.73 and now $1.64. And maybe will…?
The cons are,
- has no baseboard that logic level converter (3.3v<->5v)
- the pitch is smaller than 2.54 but can be soldering
- document hardly found
JDY-08 Bluetooth LE Module_fzpz.zip (11.6 KB)