Raspberry Pi Category - Page 18 of 27 - CNX Software

November 9, 2022November 11, 2022 by Jean-Luc Aufranc (CNXSoft) - 148 Comments

Giveaway Week 2022 – Pico:ed Smart Cutebot Kit

The third prize of this year’s giveaway week comes courtesy of ELECFREAKS which offers a Cutebot Pico:ed kit based on the Pico:ed board with a Raspberry Pi RP2040 microcontroller and following BBC Micro:bit form factor. The kit also includes two high-speed motors to drive two wheels, ultrasonic & distance sensors, two RGB LED lights and clearance lamps on the bottom, two line-tracking probes, and an active buzzer used as a horn. It is powered by three AAA batteries. The company initially me asked me if I wanted to review the board/robot, but since I may not have the time to do so, I asked whether they wanted to be included in our yearly giveaway week which they accepted. The company provides instructions to program the robot with “Micro block” visual programming IDE, C++, and CircuitPython. You’ll find resources to get started and eight projects for the robot in the Wiki. […]

November 7, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

RP2040 firmware converts Raspberry Pi Pico into a an I2C to USB bridge

Nicolai Electronics’ rp2040-ic2-interface open-source firmware for the Raspberry Pi Pico (or other Raspberry Pi RP2040 boards) converts the board into an I2C to USB bridge to connect any I2C sensor or module to a PC or other hardware without GPIOs. The firmware implements the USB protocol expected by the I2C-Tiny-USB kernel driver used by the original I2C-Tiny-USB project for Microchip ATMega 8-bit AVR microcontrollers. The RP2040 is however not a fork of the original project, but instead a complete re-implementation of the firmware. You’ll need to connect your I2C sensor, display, or another module to the SDA (GPIO 2) and SCL (GPIO 3) pins of the Raspberry Pi RP2040 microcontroller and flash the “pre-release” firmware to the board. You’ll find it together with the source code written in C language on GitHub. Note the project has a “proof of concept status” and more testing is needed to make sure that […]

October 24, 2022February 21, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Automation 2040 W board supports 6V to 40V I/Os, ships with Raspberry Pi Pico W

Pimoroni Automation 2040 W is an industrial/automation controller based on the Raspberry Pi Pico W board that supports I/Os from 6V up to 40V and offers 2.4GHz WiFi 4 connectivity. The board offers plenty of interfaces including the ADC inputs, four digital inputs, three digital outputs, and three relays whose signals are all available through screw terminals, as well as two Qwiic/STEMMA QT connectors for further expansion. Automation 2040 W specifications: Controller – Raspberry Pi Pico W with Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ 133 MHz with 264KB SRAM, 2MB flash, 802.11b/g/n WiFi 4 module I/Os 3x 12-bit ADC inputs up to 40V 4x digital inputs up to 40V 3x digital sourcing outputs at V+ (supply voltage) with 4A max continuous current 2A max current at 500Hz PWM 3x relays (NC and NO terminals) supporting 2A up to 24V, 1A up to 40V 3.5mm screw terminals for inputs and […]

October 21, 2022February 21, 2023 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Ubuntu 22.10 released with MicroPython and improved Raspberry Pi display support

Canonical has just released Ubuntu 22.10 “Kinetic Kudu” with improved desktop usability and performance, upgrade enterprise management tooling, and tools to optimize developer workflows, but highlights most relevant to CNX Software readers are the inclusion of MicroPython and improved embedded display support for Raspberry Pi. It feels like Ubuntu 22.04 LTS was just recently outed, but six months have already passed and Ubuntu 22.10 interim release is out. Some of the generic changes include: Toolchain updates to Ruby, Go, GCC and Rust OpenSSH server (sshd) is only activated when an incoming connection request is received to lower the memory footprint on resource-constrained devices A new debuginfod service to help developers and admins debug programs shipped with Ubuntu Landscape 22.10 beta to run and manage Ubuntu server to desktop on most architectures including Arm and RISC-V GNOME 43 with GTK4 for improved performance and consistency. Pipewire audio platform with better Bluetooth […]

October 20, 2022October 24, 2022 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Making a weather station with Maker Pi Pico Mini board and SparkFun SerLCD display

Cytron’s Maker Pi Pico Mini comes with a Raspberry Pi Pico or Raspberry Pi Pico W microcontroller board. It has the same features as the larger Maker Pi Pico including a GPIO LED, WS2812B Neopixel RGB LED, a passive piezo buzzer, programmable push buttons, and a reset button. I would like to thank Cytron for sending the Maker Pi Pico Mini board fitted with a Raspberry Pi Pico W as well as a character RGB LCD and a 3.7V Lithium Polymer battery. In this tutorial, we will show how to make an Internet connected weather station with the Maker Pi Pico Mini board using Arduino code and the OpenWeather API. We’ve already covered the Maker Pi Pico Mini board, so we’ll have a closer look at the accessories SparkFun SerLCD character display The SparkFun SerLCD is a 16×2 character display with a Microchip ATmega328P microcontroller that handles commands sent from […]

October 11, 2022October 20, 2022 by Jean-Luc Aufranc (CNXSoft) - No Comments

Maker Pi Pico Mini adds battery, buzzer, GPIO LEDs to Raspberry Pi Pico (W)

Cytron’s Maker Pi Pico Mini is an add-on board for the Raspberry Pi Pico and the latest Raspberry Pi Pico W with a battery port, GPIO status LEDs, a WS2812B Neopixel RGB LED, passive piezo buzzer, user and reset button, as well as “Maker” ports for expansion. It comes with most of the features found in the company’s Maker Pi Pico board, but in a much more compact form factor, since the add-on board is only slightly larger than the Raspberry Pi Pico to allow for soldering using the castellated holes. Maker Pi Pico Mini specifications: Fitted with Raspberry Pi Pico / Pico W LEDs – 6x Status indicator LEDs for GPIOs, 1x RGB LED (WS2812B Neopixel) Audio – 1x Passive piezo buzzer (to play musical tones or melody) Buttons – Reset and user buttons Expansion 3x Maker ports compatible with Qwiic and STEMMA QT, as well as Grove modules […]

October 3, 2022October 3, 2022 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

ANAVI Macro Pad 10 & Knobs input devices run KMK firmware on Raspberry Pi RP2040 (Crowdfunding)

ANAVI Macro Pad 10, Knobs 3, and Knob 1 are open-source hardware input devices based on the Raspberry Pi RP2040-powered Xiao RP2040 mini module, and equipped with mechanical keys and/or rotary encoders Leon Anavi has some experience under his belt with the earlier Macro Pad 2 and Macro Pad 8 open-source keypads with mechanical keys running QMK open-source firmware on a Microchip 8-bit microcontroller. The new models switch the MCU to the Raspberry Pi RP2040 and to KMK open-source firmware written in CircuitPython. ANAVI Macro Pad 10 specifications: MCU module – Seeed Studio XIAO RP2040 with Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ up to 133 Mhz with 264KB SRAM, 2MB SPI flash, USB Type-C port Inputs – Rotary encoder with clickable switch and nine hot-swappable Cherry MX-style switches Keys – 9x Gateron red, linear, non-clicky mechanical switches and transparent keycaps with yellow LED backlighting Host interface – USB Type-C […]

September 28, 2022 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Raspberry Pi RP2040 gets into BBC Micro:bit lookalike board

ELECFREAKS Pico:ed V2 is a Raspberry Pi RP2040 board heavily inspired by the BBC Micro:bit with an edge connector exposing rings suitable for crocodile clips, a 17×7 LED matrix display, and designed for the classroom. We’ve seen several BBC Micro:bit clones – or rather adaptations – over the years with boards such as the SiFive Learn Inventor, Elecrow Mbits, and HiHope “Big Brother” board. The Pico:ed V2 adds to the list, and the main differences are that it is based on the Raspberry Pi RP2040 microcontroller instead, and does not come with wireless connectivity relying on a USB interface only. ELECFREAKS Pico:ed V2 specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ up to 133Mhz with 264kB of SRAM Storage – 2MB QSPI flash Display – 17×7 dot-matrix display USB – 1x micro USB 1.1 port for power, data, and programming I/Os 25-pin notched “Wavy” connector with up to […]