Bluetooth SPP-C serial module- Hack to 5 - 16V VCC
Posted: Tue Apr 27, 2021 10:25 pm
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)
We need to remove one R0 rezistor
Solder 1uF cap SMD 0402
Then solder any kind of LDO stabilizer in SOT23. (AP2210N-3.3TRG1 or MCP1754ST-3302E/CB or XC6206 3.3V)
...repeat it
...
...and that's all FOLKS ......
Stabilizer MCP1754ST-3302E can handle 16V input ... ideal for automotive use ...
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 5210 times
- http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5445.JPG
- DSCN5445.JPG (278.28 KiB) Viewed 5210 times
- http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5434.JPG
- DSCN5434.JPG (321.73 KiB) Viewed 5210 times
- http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5436.JPG
- DSCN5436.JPG (293.55 KiB) Viewed 5210 times
- http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5439.JPG
- DSCN5439.JPG (303.17 KiB) Viewed 5210 times
...repeat it
...
- http://195.28.90.62/dohc/ostatne/SPP-C_BK3231_12V-HACK/DSCN5441.JPG
- DSCN5441.JPG (291.01 KiB) Viewed 5210 times
Stabilizer MCP1754ST-3302E can handle 16V input ... ideal for automotive use ...