Raspberry Pi Category - Page 27 of 30 - CNX Software

September 14, 2021September 14, 2021 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

$10 LILYGO T-Display RP2040 board integrates a 1.14-inch color display

As its name implies, LILYGO T-Display RP2040 is a Raspberry Pi RP2040 based development board that comes with a display, and more exactly a 1.14-inch color display with 240×135 resolution and based on ST7789V SPI display driver. The T-Display RP2040 board joins other Rasberry Pi RP2040 boards with integrated displays like Arducam Pico4ML, but does so at a much lower price with LILYGO selling the board for just $9.98 on Aliexpress. LilyGO T-Display RP2040 specifications: Microcontroller – Raspberry Pi RP2040 dual-core Cortex-M0+ MCU with 264 KB of embedded SRAM Storage – 4MB SPI flash Display – 1.14-inch full-color IPS LCD Display (ST7789V SPI controller) with 240 x 135 resolution Expansion – 15-pin + 12-pin expansion headers with 14x GPIOs, 6x PWMs, up to 2x UART, up to 2x I2C, up to 2x SPI, 2x programmable high-speed I/O, 5V, 3.3V, Vbat, and GND Misc – Boot & enable buttons, 2x user […]

August 10, 2021November 4, 2022 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

Challenger RP2040 WiFi board marries ESP8285 with Raspberry Pi RP2040

We’ve already seen Raspberry Pi RP2040 getting WiFi connectivity with boards like Pico Wireless Pack, Wio RP2040 mini, and Arduino Nano RP2040 Connect in ways that do not always make technical and commercial sense as in many cases, the WiFi microcontroller (e.g. ESP32) is more powerful than the Raspberry Pi microcontroller. But Invector Labs’ Challenger RP2040 WiFi board does make more sense, as the company combines Raspberry Pi RP2040 dual-core Cortex-M0+ MCU with an entry-level ESP8285 WiFi microcontroller, and also offers LiPo battery support, all that in the Adafruit Feather form factor. Challenger RP2040 WiFi board specifications: Main microcontroller – Raspberry Pi RP2040 dual-core Cortex-M0+ MCU @ 133MHz with 264KB SRAM Storage – 8MB flash Network microcontroller – Espressif ESP8285 2.4GHz WiFi 4 SoC with 1MB on-chip flash pre-flashed with Espressif’s AT command interpreter, connected to the main MCU over UART at up to 921600 bps; I/Os via Adafruit Feather […]

July 26, 2021 by Jean-Luc Aufranc (CNXSoft) - No Comments

Pico 2G Expansion adds GSM/GPRS & GNSS to Raspberry Pi Pico (Crowdfunding)

You may have heard about the 2G/3G sunset with the older cellular networks being phased out in many countries. But it’s not always straightforward, as telecom operators may have to obtain regulators’ permission for the shutdown notably because of the eCall emergency services integrated into cars in Europe. Eventually, eCall will be migrated toward IMS Voice and 2G M2M services to 4G LTE IoT and 5G LPWA, but in the meantime, 2G networks are still operating in parts of the world, and UK-based SB Components has just introduced the Pico 2G Expansion board for Raspberry Pi Pico based on the SIM868 module. Raspberry Pi Pico 2G Expansion specifications: Compatible with Raspberry Pi Pico board Display – 1.14-inch LCD Cellular & GNSS Connectivity SIM868 module with GPRS multi-slot class 12/10, mobile station class B GSM 850/900/1800/1900 MHz GNSS – GPS/GLONASS/BDS Bluetooth 3.0 with audio support SIM card holder 2x SMA antenna […]

July 23, 2021July 23, 2021 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Tiny Seeeduino XIAO board gets Raspberry Pi RP2040 MCU

Seeeduino XIAO is a tiny Arduino Zero compatible board with battery support that was launched last year with Microchip SAMD21G18 ARM Cortex-M0+ microcontroller at up to 48MHz. Seeed Studio has now launched the XIAO RP2040 board with the same form factor but upgrading to a more powerful Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller clocked at up to 133 MHz. XIAO RP2040 specifications: MCU – Raspberry Pi RP2040 dual-core Cortex M0+ up to 133 MHz, or even 252 MHz (48MHz default) with 264 kB SRAM Storage – 2MB SPI flash USB – 1x USB type C port for power and programming Expansion I/Os 2x 7-pin headers with 11x 4x analog inputs, 11x digital I/Os / PWM, 1x DAC, SPI, UART, and I2C; 2.54mm pitch 3.3V I/O voltage (not 5V tolerant) Misc – 1x user LED, power LED, 2x LEDs for serial port downloading, Reset Button/ Boot Button, RGB LED, SWD pads […]

June 25, 2021June 25, 2021 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

Pico Wireless Pack adds ESP32 WiFi & Bluetooth module to Raspberry Pi Pico

Pico Wireless Pack for Raspberry Pi Pico

Pimoroni Pico Wireless Pack is an add-on board for Raspberry Pi Pico adding a MicroSD card socket and ESP32 WiFi & Bluetooth module to the popular MCU board. While it’s a nice idea to add wireless connectivity to Raspberry Pi Pico, ESP32 is a dual-core Xtensa LX6 processor clocked at 160 to 240 MHz with WiFi, Bluetooth, and plenty of I/Os that should be able to handle most tasks better than Raspberry Pi RP2040 dual-core Cortex-M0+ processor clocked at 48 MHz by default, although we’ve also seen it overclocked up to 252 MHz. It comes with female headers that allow it to be inserted directly to the back of Raspberry Pi Pico has shown above, or into a “GPIO expander” board like the Pico Omnibus shown below through an SPI interface. Pico Wireless Pack specifications: Wireless module – ESP32-WROOM-32E WiFi 4 & Bluetooth 4.2/5.x module with PCB antenna, 4 MB […]

June 24, 2021February 21, 2023 by Saumitra Jagdale - 1 Comment

PGA2040 is a Compact Raspberry Pi RP2040 Breakout Board by Pimoroni

Pimoroni is known for its development boards with a small form factor. PGA2040 is another compact breakout board featuring the Raspberry Pi RP2040 microcontroller. The board comes in the form of a Pin Grid Array (PGA) with RP2040 at its center. The PGA allows the accommodation of 48 pins around the perimeter of SoC on such a small footprint. After seeing some of the advanced RP2040 boards featuring wireless functionalities in the past few months, such as the Arduino Nano RP2040 Connect board, Pico Wireless Carrier board, and Wio RP2040 Mini development board, the PGA2040 is a simple board with only necessary components, thus making it suitable for compact, simple applications. However, this increases the complexity and efforts from users for interfacing additional components to implement advanced applications. Talking more about the necessary components on the board, it comes with a Crystal Oscillator, 8MB of QSPI flash, and a 3V3 […]

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. […]