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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 – […]

March 31, 2021April 5, 2021 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

Piunora has the guts of a Raspberry Pi 4 with Arduino form factor, M.2 PCIe socket (Crowdfunding)

The Raspberry Pi 4 is a pretty cool board, but if you wished it was just a bit smaller, and you could use the PCIe interface exposed by the Broadcom BCM2711 processor more easily, Timon has designed Piunora carrier board for the Raspberry Pi Compute Module 4. The solution provides a board with the guts of Raspberry Pi 4 SBC but using the Arduino form factor including access to the six ADC pins, and an M.2 socket with the PCIe signal from the Broadcom SoC. Piunora carrier board specifications: SoM compatibility – Raspberry Pi CM4 module with Broadcom BCM2711 quad-core Cortex-A72 processor @ 1.5 GHz, 1 to 8GB RAM, optional 4GB to 32GB eMMC flash, optional wireless module with 802.11b/g/n/ac WiFi 5 and Bluetooth 5.0 Storage – 1x MicroSD card socket (for the OS when using Raspberry Pi CM4Lite system-on-module) Video Output – 1x HDMI 2.0 port up to 4Kp60 […]

February 22, 2021January 31, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Maker Pi Pico STEM board mini review with CircuitPython

In my early list of third-party Raspberry Pi RP2040 boards, I shortly mentioned Cytron Maker Pi Pico baseboard for Raspberry Pi Pico that exposes all pins via female headers, includes LEDs for all GPIOs pin, six Grove connectors, three user push-buttons, one RGB LED, a piezo buzzer, an audio jack, a MicroSD card, and an ESP-01 socket to add WiFi connectivity. The beta version sold for $5, and at the time I missed that included Raspberry Pi Pico board as well, so basically you got a free baseboard. The Malaysian company has now sent me a review sample to play around with, so let’s have a closer at the hardware and code samples for the board. Maker Pi Pico Unboxing and Specifications I received the board in Cytron package together with a pinout diagram for Raspberry Pi Pico, and we can see the latter is already soldered to Maker Pi […]

November 26, 2020February 22, 2021 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

MorphESP 240 ESP32-S2 board integrates a 1.3-inch color display (Crowdfunding)

MorphESP 240 ESP32-S2 board with color display

We’ve already seen ESP32 platforms with a color display such as M5Stack, but MorphESP 240 is kind of cute with a 1.3-inch color display, features the more recent ESP32-S2 WiFi processor, and supports battery power & charging. MorphESP 240 specifications: Wireless Module – ESP32-S2-WROOM with Espressif Systems ESP32-S2 single-core 32-bit Xtensa LX7 microprocessor up to 240 MHz with 128 KB ROM, 320 KB SRAM, 16 KB SRAM in RTC, 4MB SPI flash, 802.11 b/g/n 2.4 GHz Wi-Fi connectivity Display – Onboard 1.3-inch ST7789 display with 240 x 240 resolution, connected over SPI USB – 1x Micro USB port for power/charging and programming Expansion – 16-pin and 24-pin headers with GPIO, I2C, UART, SPI, USB, and power signals Misc – WS2812B RGB LED connected to IO16, Reset button, boot mode switch, battery on/off switch Power Supply 5 V to 3.3 V regulator to feed additional modules JST connector for a battery […]

October 5, 2020February 22, 2021 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

FeatherS2 Board Brings ESP32-S2 to Adafruit Feather Form Factor

We’ve covered a fair number of development boards following Adafruit Feather form factor in the last year or so with products such as QuickFeather Cortex-M4 + FPGA board, OrangeCrab (Lattice FPGA), nRF9160 Feather providing LTE IoT & GPS connectivity, and other boards. But here’s yet another Adafruit Feather themed board that has just launched: FeatherS2. The tiny board is equipped with the latest Espressif Systems ESP32-S2 WiFi SoC, 16 MB SPI Flash, 8 MB PSRAM, several I/O, and a USB-C port for power and programming. FeatherS2 key features and specifications: SoC – ESP32-S2 single-core Tensilica LX7 processor @ 240 MHz, RISC-V ultra-lower power co-processor, 320 kB SRAM, 128 kB ROM Memory – 8 MB extra PSRAM Storage – 16 MB SPI Flash Connectivity – 2.4 GHz Wi-Fi – 802.11b/g/n with 3D antenna USB – 1x USB-C port for power and programming Sensor – ALS-PT19 Ambient Light Sensor Expansion 16 + […]

April 7, 2020February 22, 2021 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

CircuitBrains Deluxe is a Tiny, CircuitPython-compatible Module (Crowdfunding)

There are plenty of boards with Adafruit’s CircuitPython support, but Microchip SAMD51 powered CircuitBrains Deluxe is a little different since it’s a module with castellated holes that make it easy to solder to your own baseboard or integrate into a space-constrained product. CircuitBrains Deluxe specifications: MCU – Microchip/Atmel ATSAMD51J19 32-bit ARM Cortex M4 microcontroller @ 120 MHz with 192 KB SRAM, 512 KB Flash Storage – 8 MB Quad SPI Flash I/Os via 48x through holes and castellated holes around the module GPIO (13 Analog, 2 of which are DAC capable, and 19 Digital) SPI, I²C, UART SWD programming/debug interface USB D- & D+ Power Supply Voltage – 5V Output – Onboard 3.3 V 600 mA Linear Regulator (LDO) connected to 3V3 pin Dimensions – 29 x 29 x 3.5 mm The module comes preloaded with CircuitPython, a fork of MicroPython maintain by Adafruit. You can just connect the board […]

January 16, 2020February 22, 2021 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Snekboard Controls LEGO Power Functions with CircuitPython or Snek Programming Languages (Crowdfunding)

LEGO has provided robotics kit for years, and LEGO blocks and accessories in general are great to build all sort of projects, so it’s not surprising third-parties have come up with LEGO-compatible boards and accessories for makers which include DFRobot BOSON kits, STEMTera smart breadboard, Brixo LEGO blocks with built-in electronics, and more. Snekboard is another option with the Microchip SAMD21 board designed to work with LEGO Power Functions motors and switches are programmable with MicroPyhon based CircuitPython or Snek programming languages. Snekboard hardware specifications: Microcontroller – Microchip SAMD21G18A Arm Cortex-M0 MCU with 256 KB flash and 32 KB RAM. Storage – 2MB SPI flash USB – 1x Micro USB port for power and programming Motor Control – 4x TI DRV8800 DC motor drivers tp provide up to 2.8A for LEGO motors and servos I/O- 8x GPIOs (3.3V) Misc – 2x RGB LEDs, 1x blue LED Power Supply 5V via […]

June 21, 2019February 22, 2021 by Tiwalade Joanna Okedara - 3 Comments

LEGO Minifigure shaped Mini SAM M4 Board Supports CircuitPython and Arduino

If you are a fan of the Lego movie. Perhaps you have always wanted to use Lego bricks to make something innovative and techy. Then the Mini SAM M4 board is here for you, as it is a LEGO minifigure-sized development board. Additionally, the design and layout of the board is based around the classic 1980’s ‘spaceman’, and is made by Ben Shockley. Although the board is very small, it has a lot of wonderful features. It comes with an analog reference decoupling/filtering capacitors. Also, it has an analog to digital ferrite bead, as well as a debounce circuitry for the reset and user buttons. Furthermore, the board’s software and firmware can be developed using CircuitPython or Arduino. The development board is either based on the Microchip SAMD51G 48-Pin 32-Bit ARM – Cortex M4F MCU (Mini SAM M4), or features the Microchip SAMD21G 48-Pin 32-Bit ARM Cortex -M0+ MCU running […]