Raspberry Pi Category - Page 23 of 25 - CNX Software

June 1, 2021June 1, 2021 by Jean-Luc Aufranc (CNXSoft) - 23 Comments

You can now buy Raspberry Pi RP2040 MCU for one dollar

Raspberry Pi RP2040 microcontroller is not exactly new, as it was introduced with Raspberry Pi Pico board last January. But until now, you had to get samples from the Raspberry Pi Foundation due to limited supplies. What has changed today is that you can more easily buy Raspberry Pi RP2040 MCU for one dollar either in single quantity or reels with the following pricing: Reel/Tape with 3400 pcs for $3400 US Reel/Tape with 500 pcs for $500.00 US Raspberry Pi RP2040 cut tape (single unit): $1.00 US The math geniuses among us will have quickly figured out there isn’t any volume discount, so it’s one dollar per chip whether you buy one or thousands. [Update: See comment from Raspberry Pi Foundation below explaining pricing for reels is still to be determined] That’s about all there’s new. If you have not quite followed recent Pico news, here’s a summary of Raspberry […]

May 26, 2021 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

CANPico open-source board adds CAN Bus to Raspberry Pi Pico

Canis Labs’ CANPico board adds a CAN bus to the Raspberry Pi Pico. The open-source hardware board can then be used as a CAN adapter connected to a host computer The company also provides an open-source MicroPython SDK, as well as a pre-built firmware image to quickly make it started, making it possible to easily control or monitor the CAN bus using Python. CANPico specifications: MCU – Raspberry Pi Pico with RP2040 dual-core Cortex-M0+ microcontroller CAN interface through 3-pin terminal block implemented via: Microchip MCP2517/18FD (SPI) CAN controller with 2Kbyte buffer space Microchip MCP2562FD CAN transceiver. Misc Jumpers to connect a standard 120Ω CAN bus termination resistor and for disabling transmit access to the CAN bus 6-pin header for a logic analyzer or oscilloscope to see what’s happening on the bus Dimensions – Approx. 75 x 24mm The MicroPython SDK for CANPico contains two major APIs with CAN and CANHack. […]

May 25, 2021May 25, 2021 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

PICOmputer connects Raspberry Pi Pico to QWERTY keyboard, display, and optional LoRa module

Peter Misenko (aka Bobricius) has found an interesting use case for the Raspberry Pi Pico board with its PICOmputer, a compact terminal with a QWERTY keyboard, a small IPS display, and even footprint for an RFM95 LoRa module that would allow messaging/texting over LoRaWAN. Note the open-source hardware project is only offered as a kit with either the main board only, or the main board plus a gold or silver front panel, all without components, but fully assembled units are out of stock at this time. So read on, if you’re ready for some soldering and even some rework of the PCB, more on that latter. PICOmputer key features and specifications: Compatible with Raspberry Pi Pico board Storage – MicroSD card slot Display – Three types supported: 1.3-inch ST7789 IPS 240×240 display via 12-pin flex cable 1.54-inch ST7789 IPS 240×240 display via 12-pin flex cable ST7789 IPS 240×240 display via […]

May 21, 2021 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

A compact Raspberry Pi RP2040 WiFi board – Meet $12.95 Wio RP2040 mini

Seeed Studio has launched another Raspberry Pi RP2040 WiFi board with the compact Wio RP2040 mini development board that provides a cheaper and more compact alternative to ESP32 based Pico Wireless carrier board and Arduino Nano RP2040 Connect, albeit at the cost of providing fewer I/O pins, and lacking Bluetooth LE. Wio RP2040 mini dev board specifications: MCU – Raspberry Pi RP2040 dual-core Cortex M0+ microcontroller up to 133 MHz with 264 kB of embedded SRAM Storage – 2MB QSPI Flash Memory WiFi – 2.4 GHz 802.11b/g/n WiFi 4 supporting AP & station modes USB – USB 1.1 Type-C host/device port for programming Expansion – 2x 14-pin headers with 20x multifunctional GPIO pins supporting PIO and PWM, 2x UART, 4x ADC, 2x SPI, 2x I2C. Misc – Boot & Reset(RUN) buttons, Power and user (GP13) LEDs Power Supply 5V via USB-C port(default) 3.6-5V via Vin header pin Dimensions – 45.5 […]

May 17, 2021May 17, 2021 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Arduino Nano RP2040 Connect WiFi & Bluetooth board launched for $25.50

Arduino Nano RP2040 Connect without headers

The Arduino Nano RP2040 Connect board was announced the day of Raspberry Pi Pico launch as one of the third-party boards featuring Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller. At the time all we had was renders of the board, later on, the company showcased some mass product photos, and then released Arduino Core mbed 2.0 for the board last month. But it’s only today that it has become possible to purchase Arduino Nano RP2040 Connect board for $25.50 on Arduino store with headers. Nano RP2040 Connect specifications: MCU – Raspberry Pi RP2040 dual-core Cortex M0+ microcontroller @ 133 MHz with 264 kB of embedded SRAM Storage – 16MB Flash IC (AT25SF128A) Connectivity – WiFi 4 & Bluetooth LE via Nina W102 uBlox module (Yes, that’s an ESP32 module.) USB – Micro USB port I/Os via 2x 15-pin headers (through and castellated holes) 20x digital I/O pins, 20x PWM pins, 20x […]

April 26, 2021April 26, 2021 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Quad GPIO Expander for Raspberry Pi Pico adds battery, display module, sensors, etc…

Raspberry Pi Pico with OLED display, 18650 battery

People are normally using MCU boards for their low cost, low-power consumption, low price and/or real-time ability. The Raspberry Pi Pico is no exception, but if you don’t care about using a large board, Waveshare created a 177 x 62 mm “expander” board for the Raspberry Pi Pico that can take four modules. The company’s Quad GPIO Expander board includes a set of female headers for RPi Pico, and four sets of 2×20 male headers for extra modules that bring support for 14500 batteries, OLED displays, RTC, relays, and other compatible modules. The expansion board also has a Micro USB port for power, and to leave the Micro USB OTG port on the Raspberry Pi Pico for other purposes. Each header pin is clearly labeled, which could be useful if using some of the pins with jumper wires instead of modules. Waveshare has hundreds of different modules and somehow decided […]

April 15, 2021August 22, 2022 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

The Tiniest Raspberry Pi RP2040 Boards – Tiny 2040 & Adafruit QT Py RP2040

The Raspberry Pi Pico officially board for RP2040 MCU has a lot of free space on the PCB. So when third parties made their own board they either added features like camera, display, and sensors as found on like on Arducam Pico4ML board, while others “cut the fat” to the minimum. Some of the tiniest Raspberry Pi RP2040 boards are Pimoroni Tiny 2040 & Adafruit QT Py RP2040, both of which come with the dual-core Cortex-M0+ MCU, a USB-C port, two buttons, some I/O ports, and not much else. Tiny 2040 Pimoroni Tiny 2040 specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller@ up to 133Mhz with 264kB of SRAM Storage – 8MB QSPI flash USB – USB Type-C port for power, data, and programming I/Os – 2x 8-pin castellated and through holes for 12 I/Os pins including 4x analog inputs, SPI, I2C, UART, 5V, 3.3V, and GND Debugging – […]

April 13, 2021April 13, 2021 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Arducam Pico4ML Board – TinyML on Raspberry Pi RP2040 with QVGA Camera & Display

A few months ago, ArduCAM demonstrated person detection on Raspberry Pi Pico with Arducam camera using TensorFlow Lite, and later we noted more work was being performed to bring machine learning to RP2040 platforms, notably with the development of Arducam Pico4ML board with a built-in camera and display. At the time, i..e last month, all we had were some renders of the board, but now Arducam Pico4ML pre-orders have launched for $49.99 on UCTRONICS and Tindie stores. Shipping is scheduled to start at the end of the month, so let’s have a closer look. Arducam Pico4ML TinyML devkit specifications: Microcontroller – Raspberry Pi RP2040 dual-core Cortex-M0+ MCU with 264 KB of embedded SRAM Storage – 2MB SPI flash Display – 0.96-inch LCD SPI Display (ST7735) with 160 x 80 resolution Camera – HiMax HM01B0 QVGA camera (320×240 @ 60fps) Audio – Built-in microphone Sensor – IDK ICM-20948 9-axis IMU (gyroscope, […]