Raspberry Pi Category - Page 16 of 25 - CNX Software

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 […]

September 16, 2022September 17, 2022 by Jean-Luc Aufranc (CNXSoft) - No Comments

Beetle RP2040 is a tiny Raspberry Pi RP2040 board with easily solderable pads

DFRobot Beetle RP2040 joins other miniature Raspberry Pi RP2040 developments boards such as Pimoroni Tiny 2040 & Adafruit QT Py RP2040, but with only eight GPIOs accessible through larger pads that are easier to solder. The tiny 27 x 20 mm board comes with a USB Type-C port, BOOT and reset buttons, and twelves pads with a through hole each comprised of eight GPIOs, plus VCC, 3.3V, and GNS pads. The Beetle RP2040 is designed to be embedded into small devices or projects, and the company selected I/Os that can be configured as I2C, UART, SPI, GPIOs, analog input, etc… Beetle RP2040 specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller@ up to 133Mhz with 264kB of SRAM Storage – 2MB QSPI flash USB – USB 1.1 Type-C port for power, data, and programming I/Os 12x golden pads with through hole for 8x I/Os pins enabling up to 2x I2C, […]

August 22, 2022August 29, 2022 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Femto is a tiny 12x12mm Raspberry Pi RP2040 module

Mirek Folejewski has designed the ridiculously tiny Femto module based on the Raspberry Pi RP2040 microcontroller with a size of just 12x12mm, and still including an SPI flash, a crystal, and a few passive components. We’ve previously covered some really tiny RP2040 boards with the Pimoroni Tiny 2040 and Adafruit QT Py RP2040 boards, as well as the RP2040 Stamp module, but the 12x12mm Femto module is about a quarter of the size of 25x25mm RP2040 Stamp. Femto specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ up to 133Mhz with 264kB of SRAM Storage – 4 to 64Mbit QSPI flash I/O – 30 GPIO pins, Reset and BOOTSEL signals, etc… exposed through a frame (See below) Misc – Status LED, 12MHz crystal oscillator, decoupling capacitors Dimensions – 12 x 12mm The board is comprised of two parts: the module itself (aka mainboard) with the Raspberry Pi RP2040 microcontroller […]

August 17, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Elecrow’s Raspberry Pi Pico Advanced Kit ships with 32 electronics modules, 32 project tutorials

We’ve just reviewed the Raspberry Pi 4-powered CrowPi L laptop and Crowtail Starter kit used to teach programming and electronics, but Elecrow has now launched the “Raspberry Pi Pico Advanced Kit” with 32 electronics modules, a smart kit car, and 32 tutorials that should be a more affordable way of teaching electronics and programming. However, it does so in a different way, as instead of using visual programming and Python, the Raspberry Pi Pico Advanced Kit’s lessons rely on MicroPython, and the projects are different with for example parts to build an obstacle avoidance, line tracking, or remote controlled car. Package content: Optional Raspberry Pi Pico board with Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller Breadboards 2x 400 holes solderless breadboards 1x 170 holes solderless breadboard Display modules 1602 LCD display module (Blue) OLED module 4-bit digital LED display module Lights 10x 5mm LEDs in green, red, blue, yellow, and […]

August 3, 2022January 24, 2023 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

EncroPi – A Raspberry Pi RP2040 USB key to read, encrypt & store data (Crowdfunding)

SB Components’ EncroPi is a USB key based on the Raspberry Pi RP2040 microcontroller that can be used to log data, encrypt data, or as a secure key, and it also features a DS3231 real-time clock with a backup battery to store the data and time. The USB key also comes with a small 1.14-inch color display to display information such as time and date, and should be programmable like the Raspberry Pi Pico with MicroPython or C/C++. All photo shows a USB Type-A port, but based on user feedback the company will also make a USB Type-C version. EncroPi specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ 133 MHz with 264KB SRAM Storage – QSPI flash, MicroSD card slot Display – 1.14-inch color LCD with 240 x 135 resolution USB – 1x USB 2.0 Type-A or Type-C port (should it be USB 1.1 instead?) Misc – Boot […]