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OpenScan DIY 3D scanner works with Raspberry Pi, DSLR, or smartphone cameras

OpenScan is an open-source DIY 3D scanner that relies on Photogrammetry and works with Raspberry Pi camera modules, compatible ArduCam modules, as well as DSLR cameras, or the camera from your smartphone. The open-source project was brought to my attention after I wrote about the Creality CR-Scan Lizard 3D scanner. The OpenScan kits include 3D printed parts such as gears, two stepper motors, a Raspberry Pi shield, and a Ringlight module to take photos of a particular object from different angles in an efficient manner. The OpenScan Classic kit above allows for 18x18x18cm scans and comes with the following components: 1x Nema 17 Stepper Motor (13Ncm) 1x Nema 17 Stepper Motor (40Ncm) 2x A4988 Stepper driver 1x Power Supply 12V/2A (5.5-2.5mm plug) 1x Optional Bluetooth remote shutter control for smartphones If you’re going to use the Raspberry Pi as shown on the right side of the image, you’ll also need […]

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Challenger RP2040 LoRa board combines Raspberry Pi RP2040 MCU with RFM95W LoRa module

Invector Labs is now offering a variant of the WiFi-based Challenger RP2040 board with a LoRa radio. The Challenger RP2040 LoRa board features the Hope RF RFM95W LoRa radio transceiver module instead of the ESP8285 WiFi chip found in the original board. Raspberry Pi RP2040 has already been used in combination with a LoRa module, notably in Rakwireless RAK11300 WisDuo LPWAN module and the “LoRa Expansion for Pico“, a baseboard for Raspberry Pi Pico equipped with a LoRa module, but it’s the first time I see the combination in a development board form factor, which as a potential bonus following Adafruit Feather form factor. Challenger RP2040 LoRa board preliminary specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ MCU @ 133MHz with 264KB SRAM Storage – 8MB flash Wireless module – Hope RF RFM95W connected via SPI channel and some GPIOs 168 dB maximum link budget. +20 dBm – 100 mW […]

Khadas Edge2 Arm mini PC
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Raspberry Pi RP2040 gains an extra USB port through PIO’s (programmable I/Os)

The Raspberry Pi RP2040 specifications only list one USB 1.1 Host/Device hardware interface, but developer’s Sekigon Gonnoc decided to leverage the microcontroller’s programmable I/Os (PIO) to add an extra USB port that also works in host or device mode. While the C library is still supposed to be a work in progress Sekigon implemented full-speed (12 Mbps) and slow-speed (1.5Mbps) host, full-speed device, USB hub, and multi-port support. There’s even a demo with three “Pico Pico USB” keyboards acting as USB hubs and HID plus a wireless mouse to show the results. The implementation uses one PIO for the USB transmitter using 22 instructions and one state machine and another PIO for the USB receiver using 31 instructions and two state machines, as well as one 1ms loop timer for the host, and one PIO interrupt for the receiver. You’ll find the code to implement the extra USB port on […]

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Yodeck Leverages Raspberry Pi in Mainstream Digital Signage (Sponsored)

Yodeck, the digital signage company has been utilizing Raspberry Pi 4 (2 GB RAM) as their goto computer to run their signage software. The versatile RPi 4 is a choice for many makers, inventors, schools, and hobbyists, but does not often find its way into mainstream business ventures. The Yodeck service software runs a remote digital signage system that is built on the RPi 4 SBC. Digital displays play an enormous role in business, for advertising, information sharing, instruction, and training. The RPi 4 can be situated at the forefront of those services. Finding the RPi 4 in a custom case, with inputs and connections readily accessible is sometimes startling. Many people are used to the RPi 4 with its circuits bare. The RPi 4 powers the Yodeck Player. A Play and Plug mini-computer with full 4K resolution and direct encoding. The Raspberry Pi 4 Model B is built for […]

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DIY Raspberry Pi Zero 2 W handheld PC (mostly) makes use of off-the-shelf parts

The Penkesu Computer is a DIY handheld PC powered by a Raspberry Pi Zero 2 W SBC, and mostly comprised of off-the-shelf parts including a 7.9-inch display from Waveshare, replacement hinges for the Gameboy Advance SP, a 48-key mechanical keyboard fitted with Kailh low profile Choc V1 switches, and so on. Penk also happens to have designed the CutiePi tablet with Raspberry Pi CM4, and designed the Penkesu Computer (ペンケース in Japanese) as a side project without having to “worry too much about commercial viability” and as a way to remind himself why he started tinkering. Penkesu Computer handheld PC specifications: SBC – Raspberry Pi Zero 2 W with Broadcom RP3A0 SiP with Broadcom BCM2710A1 quad-core Cortex-A53 processor @ 1.0 GHz, 512MB RAM, MicroSD card slot Display – 7.9-inch IPS display with capacitive touch screen, 1280x 400 resolution, connected over HDMI via flat cable through an Adafruit adapter Keyboard – […]

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Round color LCD board comes in Raspberry Pi RP2040 or ESP8266 flavor (Crowdfunding)

Roundy is a board with a 1.28-inch round color LCD with 240 x 240 resolution that is offered with either a Raspberry Pi RP2040 MCU or an ESP-12E WiFi module, with the variants respectively called RoundyPi and RoundyFi. Both boards come with a micro USB port for power and programming, a button for flashing the firmware, and six pins with power signals and four GPIOs. One difference is that the Raspberry Pi RP2040 board includes a MicroSD card for data storage. Roundy specifications: MCU / module RoundyPi – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ up to 133 MHz with 256KB SRAM RoundyFi – ESP-12E module with ESP8266 microcontroller @ up to 160 MHz with 160KB SRAM, 4MB SPI flash External storage (RoundyPi only) – MicroSD card socket Display – 1.28-inch round LCD with 240 x 240 resolution, 65k colors; GC9A01 SPI display driver. (It appears to be that model) […]

Rockchip RK3568/RK3588 and Intel x86 SBCs
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Raspberry Pi 4 to support Network install to a blank MicroSD card

The Raspberry Pi 4 will soon be able to install Raspberry Pi OS without the need for external hardware to flash the image. Raspberry Pi Network install will allow users to install a blank MicroSD card into their board, which will trigger the launch of Raspberry Pi Imager on the Raspberry Pi, and flash the image downloaded from the Raspberry Pi website. So far in order to install Raspberry Pi OS, you had to download Raspberry Pi Imager on a computer or a working Raspberry Pi, insert the MicroSD card into the host, and flash the image, before moving the MicroSD card into the Raspberry Pi board. This works just fine for most people, but if the Raspberry Pi is your only computing device, as may be the case in developing countries, that does not work. Network Installs may also speed up the installation process in the classroom where multiple […]

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Add four PCIe x1 slots to Raspberry Pi CM4 IO with Waveshare PCIe-Packet-Switch-4P board

The 1-lane PCIe Gen 2 interface in Broadcom BCM2711 processor is exposed in Raspberry Pi CM4, and most carrier boards are exploiting the interface including the official Raspberry Pi Compute Module IO carrier board. But if you ever wanted to connect multiple PCIe cards to the CM4 IO board, Waveshare has got you covered with the PCIe-Packet-Switch-4P that provides four PCIe x1 slots through an ASMedia ASM1184e PCIe switch.   PCIe-Packet-Switch-4P expansion board specifications: Compatible with Raspberry Pi Compute module 4 IO board 4x PCIe Gen 2 x1 expansion slots, compatible with PCIe Gen 1 x1 ASM1184e PCIe switch taking 1x PCIe x1 Gen2 upstream port to 4x PCIe x1 Gen2 downstream ports; no driver required, plug and play Power Supply 12V via PCIe interface or 12V via DC jack (or even 5V see warnings below) Dimensions – 82 x 39 mm There are some interesting warnings in the Chinese […]

Khadas VIM4 SBC