Circuit Playground Express + Crickit
by Adafruit
Crickit is a Creative Robotics & Interactive Construction Kit. It’s an add-on for the popular Circuit Playground Express that lets you #MakeRobotFriend using CircuitPython (and more).
Bolt on a Circuit Playground using the included stand-off bolts and start controlling motors, servos, solenoids. With CRICKIT you also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends the Circuit Playground so you can still use all the goodies on the CPX, but now you have a robotics playground as well.
The Crickit is powered by seesaw, a I2C-to-whatever bridge firmware. So you only need to use two data pins to control the huge number of inputs and outputs on the Crickit. All those timers, PWMs, sensors are offloaded to the co-processor.
Technical details
- 4x Analog or Digital Servo control, with precision 16-bit timers
- 2x Bi-directional brushed DC motor control, 1 A current limited each, with 8-bit PWM speed control (or one stepper)
- 4x High current “Darlington” 500mA drive outputs with kick-back diode protection. For solenoids, relays, large LEDs, or one uni-polar stepper
- 4x Capacitive touch sensors with alligator-pads
- 8x Signal pins, digital in/out or analog inputs
- 1x NeoPixel driver with 5 V level shifter
- 1x Class D, 4-8 ohm speaker, 3 W-max audio amplifier
All are powered via 5 V DC, so you can use any 5V-powered servos, DC motors, steppers, solenoids, relays etc. To keep things simple and safe, CRIKIT does not support mixing voltages, use only 5 V - not for use with 9 V or 12 V robotic components.
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CircuitPython 7.3.3
This is the latest stable release of CircuitPython that will work with the Circuit Playground Express + Crickit.
Start here if you are new to CircuitPython.
Built-in modules available: adafruit_bus_device, adafruit_pixelbuf, analogio, audiobusio, audiocore, audioio, board, busio, digitalio, errno, math, microcontroller, neopixel_write, nvm, os, pulseio, pwmio, rainbowio, random, rotaryio, rtc, storage, struct, supervisor, time, touchio, traceback, usb_cdc, usb_hid, usb_midi
Included frozen(?) modules: adafruit_circuitplayground, adafruit_crickit, adafruit_lis3dh, adafruit_motor, adafruit_seesaw, adafruit_thermistor, neopixel
CircuitPython 8.0.0-beta.1
This is the latest unstable release of CircuitPython that will work with the Circuit Playground Express + Crickit.
Unstable builds have the latest features but are more likely to have critical bugs.
Release Notes for 8.0.0-beta.1
Built-in modules available: adafruit_bus_device, adafruit_pixelbuf, analogio, audiobusio, audiocore, audioio, board, busio, digitalio, dotenv, errno, math, microcontroller, neopixel_write, nvm, onewireio, os, pulseio, pwmio, rainbowio, random, rotaryio, rtc, storage, struct, supervisor, time, touchio, usb_cdc, usb_hid, usb_midi
Included frozen(?) modules: adafruit_circuitplayground, adafruit_crickit, adafruit_lis3dh, adafruit_motor, adafruit_seesaw, adafruit_thermistor, neopixel
Absolute Newest
Every time we commit new code to CircuitPython we automatically build binaries for each board and language. The binaries are stored on Amazon S3, organized by board, and then by language. Try them if you want the absolute latest and are feeling daring or want to see if a problem has been fixed.
Past Releases
All previous releases are listed on GitHub, with release notes, and are available for download from Amazon S3. They are handy for testing, but otherwise we recommend using the latest stable release. Some older GitHub release pages include the same binaries for downloading. But we have discontinued including binaries as assets on newer release pages because of the large number of files for each release.
Update UF2 Bootloader
Latest version: v3.14.0
The bootloader allows you to load CircuitPython, MakeCode, and Arduino programs. The bootloader is not CircuitPython. You can check the current version of your bootloader by looking in the INFO_UF2.TXT file when the BOOT drive is visible (FEATHERBOOT, CPLAYBOOT, etc.).
It is not necessary to update your bootloader if it is working fine. Read the release notes on GitHub to see what has been changed. In general, we recommend you not update the bootloader unless you know there is a problem with it or a support person has asked you to try updating it.
To update, first save the contents of CIRCUITPY, just in case. Then double-click the reset button to show the BOOT drive. Drag the update-bootloader .uf2 file to the BOOT drive. Wait a few tens of seconds for the bootloader to update; the BOOT drive will reappear. After you update, check INFO_UF2.TXT to verify that the bootloader version has been updated. Then you will need to reload CircuitPython.