There are several types of Crickets, and two versions of the Cricket Logo software. This page presents the collection of Cricket hardware. See here for an explanation of Cricket Logo.

• Sensor/Motor Cricket
• Display Cricket
• Tag Cricket
• The Bit Ball
• Interface Cricket, Macintosh version
• Interface Cricket, PC version

The Sensor/Motor Cricket, also known as the ``Classic Cricket,'' is ideal for projects that have both motors and sensors. The Cricket includes inputs for two sensors and outputs for two motors. It also has a beeper, a pushbutton switch for starting and stopping programs, and the Cricket-standard infrared communications system.

The Classic Cricket comes in both Green Dot and Red Dot versions. The Red Dot version includes the 'F84 microprocessor and improved current-handling on the motor drivers.

Technical specifications (both versions):

• Two sensor inputs for resistive devices.
• Piezo beeper.
• On/off slide switch and user pushbutton switch.
• Three status LEDs indicate power-on, program running, and infrared transmission in progress.
• 9v battery power source.

Additional features (Green Dot):

• Surface-mount PIC 16C84 microprocessor with 4 MHz ceramic resonator.
• 256 byte user program memory and 1792 byte user data storage memory in single 24LC16B serial EEPROM.
• Two motor outputs, each capable of 150mA at 9 volts. Bi-color LED indicates state for each motor output.

Additional features (Red Dot):

• Surface-mount PIC 16F84 microprocessor with 4 MHz ceramic resonator.
• 1792 byte user program memory and 256 byte user data storage memory in single 24LC16B serial EEPROM.
• Two motor outputs, each capable of 1000mA at 9 volts. Bi-color LED indicates state for each motor output.

The Display Cricket features a row of 8 bi-color LEDs for visualization of dynamic data. User programs may treat this display as a 24-state bargraph, or have individual control over the red/green/orange/off state of each LED. The Display Cricket also includes three sensor inputs, a pushbutton, a beeper, and the Cricket-standard infrared communications system.

The Display Cricket has to date only been made in the Green Dot version, though any subsequent production would use the 'F84 chip and the Red Dot Logo.

Technical specifications:

• Surface-mount PIC 16C84 microprocessor with 4 MHz ceramic resonator.
• 256 byte user program memory and 1792 byte user data storage memory in single 24LC16B serial EEPROM.
• Row of 8 red/green LEDs which may be individually set to red, green, orange or off, or be treated as a bargraph capable of displaying 24 discrete states.
• Three sensor inputs for resistive devices.
• Piezo beeper.
• On/off slide switch and user pushbutton switch.
• Three status LEDs indicate power-on, program running, and infrared transmission in progress.
• 9v battery power source.

The Tag Cricket is based on the Thinking Tag project created for the Media Lab's Things That Think consortium. The Thinking Tag is worn like a name badge and helps its wearer learn common interests with others at a gathering.

The Tag Cricket includes the features of the Thinking Tag in a wearable package: a row of 5 bi-color LEDs for display, a beeper, and a pushbutton. The Tag Cricket includes the Cricket-standard infrared communications system.

The Tag Cricket comes in both Green Dot and Red Dot versions.

Technical specifications:

• Surface-mount PIC 16C84 (Green Dot) or 16F84 (Red Dot) microprocessor with 4 MHz ceramic resonator.
• 256/1792 (Green Dot/Red Dot) byte user program memory and 1792/256 (Green Dot/Red Dot) byte user data storage memory in single 24LC16B serial EEPROM.
• Row of 5 red/green LEDs which may be individually set to red, green, orange or off, or be treated as a bargraph capable of displaying 15 discrete states.
• Piezo beeper.
• On/off slide switch and user pushbutton switch.
• Two N-cell battery power source.
• Form-factor designed for wearing like a name tag.

The Bit Ball is a Cricket with an Analog Devices accelerometer embedded in a rubber ball. It addition to being able to capture and act on acceleration data in real time, the ball includes six LEDs (two red, two green, and two yellow) for user interaction, and the Cricket-standard infrared communications system. The Bit Ball runs on rechargable batteries that are permanently encased into the clear rubber substrate. A charging jack allows the Ball to be plugged in and recharged.

The Bit Ball runs the Red Dot version of Cricket Logo.

Interface Cricket, Macintosh version

The current generation of Interface Cricket also includes two pushbuttons so that it may be used as a remote control for interacting with Crickets.

Technical specifications:

• Surface-mount PIC 16C84 microprocessor with 4 MHz ceramic resonator.
• Macintosh DIN-8 serial connector.
• 9600 baud, half-duplex DCE rate (actual throughput when communicating with Crickets is approximately 600 baud).
• On/off slide switch and two pushbutton switches.
• 9v battery.

Technical specifications:

• Surface-mount PIC 16C84 microprocessor with 4 MHz ceramic resonator.
• DB-9 female serial connector, wired like a modem.
• 9600 baud, half-duplex DCE rate (actual throughput when communicating with Crickets is approximately 600 baud).
• On/off slide switch and two pushbutton switches.
• 9v battery.