The summarized features of POP-168 module is as follows :

1. ATmega168 on board with 10-bit ADC converter, 16KB flash program memory, 512-byte EEPROM, 1KB RAM, 16MHz clock
2. Built-in RS-232 interface for Communication
3. Immediate code upload with the built-in Bootloader
4. Reset Button for reset capability
5. Small Form Factor for compact size development
6. ISP port for programming with the PX-400/PX-4000 device
7. SMD Leds for indications
8. Fully compatible with the Ardruino Project
9. 16 I/O pin assignment compatible i-Stamp/i-Stamp2P24 module
10. Supply voltage range +3.3 to +5V 50mA

RBX-168 Power Module
The RBX-168Robot controller board is a complete, low-cost development platform designed for those interested in learning and using Arduino POP-168 module in robotic applications. Its compact size, convenient features, and low price make it an ideal tool for the student and educator.

Features of the RBX-168 Power Module board

1. Screw terminal block for battery connections. It supports +4.8 to +12Vdc and has an on-board power switch.
2. +5Vdc switching regulator power supply circuit. It regulated the supply voltage for POP-168 module and all sensor ports.
3. 2-push button switch are connected with the digital port 2 (Di2) and 4 (Di4). Also connnedt with LED for indicator the operation.
4. 5-Universal port support Analog input function and Digital input/output function; An1 (Di15) to An5 (Di19)
5. 2-Analog input port ; An6 and An7. Both port pin are analog input only.
6. I2C bus port; An4 (SDA) and An5 (SCL)
7. RS-232 serial port interfacing.
8. 2-ch. DC motor driver with indicators. Support motor voltage 2.5 to 13.5Vdc.
9. 2-Servo motor output; connect with the digital port 7 (Di7) and 8 (Di8).
10. Piezo speaker connections (do not show in the figure 1-2; it is fixed at bottom circuit board of RBX-1689 board. It is connected with POP-168 An0/Di14 pin.

POP-BOT Package Items :

1. POP-168 The Arduino-mini compatible microcontroller module
2. RBX-168 Robot controller board with 4-AA battery holder
3. Switch input board with JST cable (2 sets)
4. Infrared Reflector board with JST cable (2 sets)
5. GP2D120 Infrared distance sensor with JST cable
6. Serial LCD 16 characters 2 lines module with LED backlight with Cable
7. 48:1 ratio 4.5V DC motor gearbox with IDC cable (2 sets)
8. Standard servo motor (Operating voltage is 4.8 to 7.2Vdc)
9. Circle wheel and Tread rubber wheel set with 2mm. tapped-screw. (2 sets)
10. 80x60 cm. and 80x80 cm. Plastic Grid plate set (2 sets)
11. Circle base with free ball wheel
12. Plastic joiner and Strip joiner set (60 pieces of 3-type mix colored plastic joiner, 4 pieces of each 3/5/12 holes of Strip joiner)
13. Right-angled metal shaft set (4 pieces of each 1x2, 2x2, 2x5 Right-angled metal shaft)
14. Nuts and Screws set
15. Line tracking demo paper sheet
16. UCON-4 USB to serial converter cable for downloading and communication
17. CD-ROM contains software tools, source code and documentation