Part Number : YX8115
Function : To turn on the LED with a single 1.5V batteries
Image :

Description

YX8115 Datasheet PDF Download
1pico = 0.000000000001
Part Number : BA6688L
Function :BA6688L – SSIP 12Pin
Manufacturer : ROHM Semiconductor
Pinout :

The BA6688 IC provides the radio signal decoding and reads the positioning resistor (Pot) and the other is the BAL 6686 H-bridge that powers the servos motor.
Other datasheets in the file : BA6688L