LED matrix panels and cables are sold separately, check out the extras tab for some options!
Software
Because it’s a RP2040 board, Interstate 75 is firmware agnostic! You can program it with C/C++, MicroPython or CircuitPython.
Our?C++/MicroPython?libraries contain some spiffy HUB75 drivers that use RP2040’s PIO state machines and DMA to minimise CPU usage and maximise luscious, 10-bit gamma corrected colour depth.
You’ll get best performance using C++, but if you’re a beginner we’d recommend using our batteries included MicroPython build for ease of getting started.
You can also use?CircuitPython?on your Interstate 75! Because CircuitPython drivers are designed to work on a bunch of different microcontrollers you won’t get the fancy RP2040-architecture specific tweaks that you’ll find in our library, but you will get access to Adafruit’s mighty DisplayIO library which makes it super easy to display all sorts of different kinds of text, draw shapes and display images.
Please note that some less-common varieties of 64×64 panels, like ones that use the FM6126A chip, are not currently supported in CircuitPython.
Connecting Breakouts
If your breakout has a QW/ST connector on board, you can plug it straight in with a?JST-SH to JST-SH cable, or you can easily connect any of our I2C Breakout Garden breakouts with a?JST-SH to JST-SH cable?coupled with a?Qw/ST to Breakout Garden adaptor.
You can find a list of which breakouts are currently compatible with our C++/MicroPython build in the most recent?release notes.
We’ve also broken out a bunch of useful I2C pins, analog pins and debug pins along the side of the board so you can solder things like breakouts or analog potentiometers directly to them.
About RP2040
Raspberry Pi’s RP2040 microcontroller is a dual core ARM Cortex M0+ running at up to 133Mhz. It bundles in 264kB of SRAM, 30 multifunction GPIO pins (including a four channel 12-bit ADC), a heap of standard peripherals (I2C, SPI, UART, PWM, clocks, etc), and USB support.
One very exciting feature of RP2040 is the programmable IOs which allow you to execute custom programs that can manipulate GPIO pins and transfer data between peripherals – they can offload tasks that require high data transfer rates or precise timing that traditionally would have required a lot of heavy lifting from the CPU.