Bluetooth SPP-C serial module- Hack to 5 - 16V VCC

[JRD McLAREN]

If anybody need to use BT Serial module in your car, without "base board"
here is a short guide

Ebay gives this modules based on BK3231S chip
(with 5 pins)

http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5426.JPG

DSCN5426.JPG (302.94 KiB) Viewed 2444 times

We need to remove one R0 rezistor

http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5445.JPG

DSCN5445.JPG (278.28 KiB) Viewed 2444 times

http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5434.JPG

DSCN5434.JPG (321.73 KiB) Viewed 2444 times

Solder 1uF cap SMD 0402

http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5436.JPG

DSCN5436.JPG (293.55 KiB) Viewed 2444 times

Then solder any kind of LDO stabilizer in SOT23. (AP2210N-3.3TRG1 or MCP1754ST-3302E/CB or XC6206 3.3V)

http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5439.JPG

DSCN5439.JPG (303.17 KiB) Viewed 2444 times

...repeat it ...

http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5441.JPG

DSCN5441.JPG (291.01 KiB) Viewed 2444 times

...and that's all FOLKS ......

Stabilizer MCP1754ST-3302E can handle 16V input ... ideal for automotive use ...

[AndreyB]

Forum posts hosting images external hosting especially just an IP address are not reliable

Please edit

image.png (117.05 KiB) Viewed 2446 times

[JRD McLAREN]

it is Google Chorme or Chromium browser problem ...
(so .. wait for edit)

EDETED: .. edited ..

[AndreyB]

Please attach images to your post.

I am not willing to take a risk of the magic IP address going down.

[Lambo97]

Hey JRD would you be interested in building me a few of these. I can desolder but would have trouble soldering the cap.

[JRD McLAREN]

you have PM ..