Challenger RP2040 LTE

by Invector Labs

Image of Board

The Challenger RP2040 LTE is an Arduino/CircuitPython compatible Adafruit Feather format micro controller board based on the Raspberry Pico chip.

This board has been designed with portable applications in mind. By using the powerful dual core RP2040 combined with 8Mbyte of flash memory you get a device that can handle pretty much anything you can trow at it. For instance if you let one core handle the LTE modem and the second core do all the UI stuff you get an extremely responsive system. Not to mention that the 8MByte of FLASH memory will let you install any (or all) circuitpython support libraries that you will every need.

Technical details

  • Raspberry Pi Pico Dual Core Cortex-M0 @ 133MHz
  • 8 MByte FLASH Memory.
  • 264 KByte SRAM Memory.
  • 1 Hardware I2C channel.
  • 1 Hardware SPI channel.
  • 1 Hardware UART for the user (Serial1).
  • 1 Hardware UART connected to the network processor (Serial2 @ 1Mbit/s)
  • 12 Bit ADC.
  • SARA-R410M-02B
  • LTE Category M1/NB1
  • Multiregion
  • Data rate M1: up to 375 kb/s UL, 300 kb/s DL
  • Data rate NB1: up to 62.5 kb/s UL, 27.2 kb/s DL
  • LiPo charger circuit with 250mA charging current
  • Standard LiPo battery connector
  • USB Type C connector
  • Bi2C



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CircuitPython 7.1.0-beta.1

This is the latest unstable release of CircuitPython that will work with the Challenger RP2040 LTE.

Unstable builds have the latest features but are more likely to have critical bugs.

Release Notes for 7.1.0-beta.1

Built-in modules available: _bleio, adafruit_bus_device, adafruit_pixelbuf, aesio, alarm, analogio, atexit, audiobusio, audiocore, audiomixer, audiomp3, audiopwmio, binascii, bitbangio, bitmaptools, bitops, board, busio, countio, digitalio, displayio, errno, fontio, framebufferio, getpass, gifio, imagecapture, json, keypad, math, microcontroller, msgpack, neopixel_write, nvm, onewireio, os, paralleldisplay, pulseio, pwmio, qrio, rainbowio, random, re, rgbmatrix, rotaryio, rtc, sdcardio, sharpdisplay, storage, struct, supervisor, synthio, terminalio, time, touchio, traceback, ulab, usb_cdc, usb_hid, usb_midi, vectorio, watchdog

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.