Last time I introduced a BLE demo between PSoC 6 kits. The Central side used the PSoC 6 kit and previous software, and replaced the Peripheral side board with the PSoC 4 kit. So, introduce Peripheral side of PSoC4 program, here.
BLE version is different between PSOC6 and 4, but the basic part is the same.
The touch button on the Central side operates the LEDs on the kit on the Peripheral side. Select the LED with the 0/1 button on the Central side, and adjust the LED brightness with the Slider. Button 0 selects green LED and Button 1 selects blue LED. The operation image is as follows.