Raspberry Pi Category - Page 15 of 27 - CNX Software

April 6, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

$15 Adafruit Feather RP2040 with DVI Output Port connects to your HDMI TV or monitor

“Adafruit Feather RP2040 with DVI Output Port” is another Raspberry Pi RP2040 board with an HDMI port that can output DVI video signal (no audio) to most TVs or monitors with an HDMI input port thanks to the PicoDVI project. The board builds upon the company’s Adafruit Feather RP2040 with the HDMI port adding just a few dollars. Adafruit Feather RP2040 with DVI Output Port specifications: MCU – Raspberry Pi RP2040 dual-core Arm Cortex M0+ microcontroller ~125 MHz (but it should be overclocked for DVI output) with 264 KB RAM Storage – 8MB SPI flash Video Output – 1x HDMI port for DVI output up to 320×240 or 400×240 resolution with 16-bit pixels, I2C signals to read EDID data, plus CEC and Utility pads broken out USB – 1x USB Type-C port I/Os Adafruit Feather compatible headers Up to 21x GPIOs 2x I2C, 2x SPI, 2x UART 4x 12-bit ADC […]

April 4, 2023April 9, 2023 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

Raspberry Pi RP2040 pHAT board comes with a 40-pin GPIO header

0xC0FFEE’s RP2040 PHAT is both a Raspberry Pi RP2040 development board and a pHAT for Raspberry Pi and Pi Zero Linux SBCs that exposes the I/Os through the 40-pin GPIO header traditionally found in Raspberry Pi single board computers. The board comes with all features of the Raspberry Pi Pico board including a USB port for power and programming, an SPI flash, and a BOOT button, but also adds a Reset button. That means it’s software compatible, except for the user LED connected to GPIO 26, and works with the MicroPython and C SDKs, as well as the Arduino IDE, Zephyr RTOS, and more. RP2040 pHAT specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ 133 MHz with 264KB SRAM Storage – 128Mbit SPI flash (based on the chip in the photo above) USB – 1x USB 1.1 Type-C port used for power and programming Expansion – 40-pin Raspberry […]

March 29, 2023March 29, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

XIAO ESP32S3 board gets some senses with a camera and microphone module, plus a round touchscreen display

Last week, we wrote about the new XIAO ESP32S3, a tiny ESP32-S3 board from Seeed Studio. The company has now launched the XIAO ESP32S3 Sense adding a camera and microphone module connected through a board-to-board connector, as well as the Round Display for XIAO that can help people easily create wearable devices with a touchscreen based on any board from the XIAO family. XIAO ESP32S3 Sense XIAO ESP32S2 Sense specifications: Wireless MCU – Espressif Systems ESP32-S3R8 dual-core Tensilica LX7 microcontroller @ 240 MHz with 512KB SRAM, 8MB PSRAM, Wi-Fi 4 & Bluetooth 5.0 dual-mode (Classic + BLE) connectivity Storage – 8MB SPI flash, microSD card slot Antenna – External u.FL antenna USB – USB Type-C port for power and programming Camera – OV2640 camera sensor up to 1600×1200 resolution Audio – Built-in digital microphone Expansion I/Os 2x 7-pin headers with 1x UART, 1x I2C, 1x SPI, 11x GPIO (PWM), 9x […]

March 28, 2023 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Convert your 3D printer into a metal cutting machine with an Electrical Discharge Machining kit (Crowdfunding)

Rack Robotics’ Powercore is an Electrical Discharge Machining (EDM) kit that converts your existing 3D printer (or CNC router) into a machine capable of cutting high-precision and detailed metal parts. We’ve already seen 2-in-1 3D printers and laser engravers such as the Creality Ender 3 S1 Pro, but while this type of machine can usually cut plywood or engrave stainless steel, the laser is not powerful enough to cut through aluminum. The Powercore EDM kit changes that by enabling the cutting of aluminum parts up to 4mm thick, although aluminum sheets that are 1mm or thinner are recommended. But before we get into Powercore details, what is Electrical Discharge Machining exactly? Engineers Edge explains: Electrical Discharge Machining, EDM is one of the most accurate manufacturing processes available for creating complex or simple shapes and geometries within parts and assemblies. EDM works by eroding material in the path of electrical discharges […]

March 28, 2023March 29, 2023 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Servo and motor control with Raspberry Pi Pico, CircuitPython, and Wukong 2040 breakout board

Raspberry Pi Pico Wukong 2040 Motor Control CircuitPython

ELECFREAKS Wukong 2040 is a multifunctional breakout board designed for Raspberry Pi Pico. It is equipped with interfaces for four DC motors, up to twelve servos, a buzzer, A\B buttons, RGB “rainbow” lights, a Reset button, etc… The board can be powered by a single 18650 3.7V LiPo battery and integrates a power management IC that monitors the battery level and can also charge the battery via a USB charger. Battery life is typically 60 minutes per charge but can last over 120 minutes depending on the load. Wukong 2040 key features and specifications Description of the Wukong 2040 interfaces Specifications and dimensions of the Wukong 2040 Expansion Board for Raspberry Pi Pico The Wukong 2040 breakout board for the Raspberry Pi Pico can control up to four DC motors and up to 12 servo motors as shown in the diagram below. Pinout diagram of the Wukong 2040 board […]

March 24, 2023 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Plasma Stick 2040 W adds RGB LED strip controller to Raspberry Pi Pico W board

Pimoroni Plasma Stick 2040 W is a “Pico W Aboard” kit that adds a 5V RGB LED strip controller to the Raspberry Pi Pico W board, as well as a Reset button, and a Qwiic/STEMMA QT connector for expansion. Plasma Stick 2040 W specifications: Raspberry Pi Pico W MCU – Dual Arm Cortex M0+ running at up to 133Mhz with 264kB of SRAM Storage – 2MB of QSPI flash supporting XiP Connectivity – 2.4GHz wireless module with WiFi 4 and Bluetooth Classic + LE USB – 1x micro USB port for power and programming LED strip connector – 3-pin screw terminal block compatible with 5V WS2812/Neopixel/SK6812 LEDs Expansion – Qw/ST (Qwiic/STEMMA QT) I2C connector Misc – Reset button Power Supply – 5V via micro USB port Dimensions – 67 × 22 × 12 mm Since it’s based on the Raspberry Pi Pico board it’s programmable with the official C/C++ and MicroPython […]

March 6, 2023March 7, 2023 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Riotee batteryless stackable IoT board embeds an nRF52833 module (Crowdfunding)

Nessie Circuits’ Riotee board features a Riotee module based on Nordic nRF52833 WiSoC with a 2.4 GHz radio that targets batteryless IoT applications thanks to a stackable design taking a capacitors add-on board and a solar panel. Batteries introduce maintenance costs and environmental issues with millions of batteries disposed of every day. That’s why companies are trying to provide solutions for batteryless IoT designs such as the Everactive batteryless IoT devkit or Telink energy harvesting wireless module for remote controls. The Riotee module, board, and ecosystem also aim to play their part in reducing the use of batteries in wireless IoT devices. Riotee board specifications: Riotee module Wireless MCU – Nordic nRF52833 Arm Cortex-M4F microcontroller @ 64 MHz with 512 kB flash, 128 kB RAM, 2.4 GHz radio Memory – 128 kB of non-volatile memory (MSP430FR5962 FRAM) for “automatic checkpointing of application state” Castellated holes with 11x GPIOs including two […]

February 23, 2023 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

2-channel DSO-500K WiFi oscilloscope is based on Raspberry Pi Pico W board

FHDM TECH DSO-500K is a 2-channel 500kS/s WiFi oscilloscope based on Raspberry Pi Pico W board that can also work over USB, and offers an analog bandwidth of up to 150kHz. We previously had seen the Raspberry Pi Pico board used as a logic analyzer, so it should come as no surprise that somebody has also come up with a Raspberry Pi Pico W-based oscilloscope that enabled visualization on Android over WiFi or USB. DSO-500K specifications and features (through the Scoppy app): MCU board – Raspberry Pi Pico W board with RP2040 dual-core Cortex-M0+ microcontroller, 2MB SPI flash, WiFi 4 and Bluetooth connectivity Sample rate – Up to 500kS/s sample rate (250kS/s with both channels enabled) Analog bandwidth – 150kHz Record length – 2048 samples per channel in RUN mode, 100kS total for single shot captures Inputs – BNC connectors or 0.1-inch headers Input Impedance – 1MΩ / 22pF Input […]