Adafruit FONA - Mini Cellular GSM Breakout - SMA Version - v1

EasyDriver Stepper Motor Driver V44

SparkFun RFM69 Breakout 915MHz

Big Easy Driver

Sparkfun Temperature and Humidity Sensor- SHT15

MicroSD card breakout board

Pololu RC Switch with Relay

LED Charlieplexed Matrix - 9x16 LEDs - Vermelho

Crash sensor(Left)

Teko Case for Raspberry Pi 3 - Black

Pololu Aluminum Scooter Wheel Adapter for 4mm Shaft

SparkFun RGB and Gesture Sensor - APDS-9960

Gravity: IO Expansion Shield for Arduino V7.1

LED Matrix 8x8 with I2C Backpack Red - Adafruit

Bi-directional Logic Level Converter 4-channel by I2C BSS138

SparkFun Luminosity Sensor - TSL2561

Expansion Kit for 3pi Robot.

Pololu Carrier for MQ

Pololu Wheel 80×10mm Pair - Black

LPS331AP Pressure/Altitude Sensor Carrier with Voltage Regulator

This acrylic expansion plate lets you mount a variety of components to your Rover 5 tracked chassis. The 3 mm wide slots covering the plate support many configurations of sensors and other robot components.

The Pololu USB to serial adapter is great for connecting microcontroller designs to a personal computer. The adapter uses 3.3 V signal levels so you can connect it directly to any microcontroller running at up to 5 V without the hassle of an RS-232 to TTL level converter.

This compact bracket enables convenient mounting of popular, Sanyo-style micro metal gearmotors. The black plastic bracket encloses the otherwise exposed gears, and the mounting tabs capture the nuts for easy installation. The brackets are sold in pairs, and each bracket comes with two #2 screws and two nuts.

This compact expansion board plugs directly into the GPIO header on a Raspberry Pi B+, A+, or Pi 2 and provides an easy and low-cost solution for driving a pair of small brushed DC motors. Its integrated DRV8835 dual motor driver allows it to operate from 1.5 V to 11 V, making it a great control option for low-voltage motors.

Arduino Expansion Shield for Raspberry Pi B - DFRobot

This 12-inch (30-cm) cable has 26 AWG wires and a 3-pin female JST PH-style connector that works with Sharp analog distance sensors that have mating PH connectors. The other ends of the wire are terminated with female pins for 0.1" housing. The wire color scheme matches the Sharp distance sensor pinout: red for power, black for ground, and white for signal.

DFRobot Relay Shield  V2.1 is a completely new design which is capable of controlling 4 relays at a time.