Circuit Diagram Jl Bluetooth Ic Pinout. The difference is that one is a ttl and the other is a cmos ic. Now let us proceed to the hardware.
Hey there i recently bought this bluetooth amplifier board on aliexpress and after receiving the package and inspecting the board i found solder connections for a usb cable. Look at the difference in the pinout diagrams. General purpose bluetooth low energy soc ideal for single chip solutions or as a connectivity device.
Though now it is decades old and replaced by newer analog to digital converters which provide more flexibility consumes less power provides output in multiple formats and are smaller in.
After that you can connect the components following the lines that are in the schematic diagram you have. To determine which pin is which you look down on the top of the ic for the clocking mark which is usually a small notch in the packaging but might instead be a little dimple or a white or colored stripe. Your project can only succeed if you have the right schematic diagram. Circuit connections for this project is very simple we simply have to power up the bluetooth module and connect the tx to the 26 th pin of pic and rx to the 25 th pin of pic as shown in the circuit diagram below.
