Electronics component store in Xicheng district, Beijing?

My father is going to china tomorrow and I want to buy some electronics component form china. The components are
1.nrf24L01 module
2.Serial camera module
3. Arduino board
4.Servo motor
5. PIC18F2620 chip
6. Bluetooth module
and much more....

He is going to stay in a hotel located at
street:Chegongzhuang
District : Xicheng
Beijing - 100044

can any one tell me address of any shop or shopping mall that sells these stuffs.

Address near the hotel will be very much helpful...