$5 Add-on Board for Raspberry Pi Supports Arduino Shields and Grove Modules (with Caveats)

If you have several Arduino shields, you can use them on your Raspberry Pi B+/ Pi 2 board with Cooking Hacks’ Raspberry Pi to Arduino shields connection bridge supported by arduPi library to control I2C, SPI, GPIO, analog inputs, etc.., and sells for $65 on Amazon. Seeed Studio Grove modules have also become more popular, with several new boards integrating 4-pin Grove connectors such as Beaglebone Green. Raspberry Pi boards also support Grove modules, up to 15 of these!, using Grove Pi+ add-on board which the company sells for around $30. But I’ve just discovered a Raspberry Pi to Arduino Expansion Board V2.0 on DealExtreme, selling for $7.97 that’s allows the latest Raspberry Pi boards with a 40-pin headers to take both Arduino shields and 2 Grove modules. After some investigations, I found out it was made by ITead Studio, where they sell it for $5 + shipping. The Wiki […]

How to Use Nextion Serial Touchscreen Displays – Part 1: Standalone Mode

Itead Studio launched an Indiegogo campaign earlier this year for their Nextion TFT displays that can be connected to external board such as Arduino or Raspberry Pi via the serial interface, or even a standard computer provided you have a USB to TTL debug board. The campaign was successful with over 1,700 backers, and the company recently sent me two samples for review: a 2.4″ display and a 5″ display. In this post, I’ll look at the boards, and make a small standalone demo with Nextion Editor in Windows. Nextion NX3224T024 2.4″ Display The first item is a 2.4″ TFT display called NX3224T024_011N (non-touch) or NX3224T024_011R (Resistive touch) with 65536 color, 320×240 pixel resolution, LED backlight and up to 200nit brightness. It ships with a cable for the serial connection (5V, Tx, Rx, and GND). The back of the display features the serial connector, a micro SD used to load the […]

Nextion 2.4″ and 4.3″ UART TFT Displays Come with a Drag and Drop UI Editor (Crowdfunding)

You may want or need to add a small TFT display to control your devices, and it may not always be easy to interface with the hardware, and desiging the user interface may be time consuming. ITEAD Studio latest project, Nextion TFT HMI touchscreen displays, aims to simplify connection with a simple UART interface, and make UI design easier with their Nextion Editor that allows developers to create a user interface without coding. Two models are available: Nextion-2.4″ 2.4″ display with 320×240 resolution Refresh rate: 80 ms 4MB flash 4-pin UART interface Micro-SD card slot, GPU, resistive touch sensor. Dimensions – Board: 74.43 x 42.85 x 3.32 mm; display: 60.78 x 42.62 mm Power Consumption – Sleep: 20 mA; active: 90 mA Nextion-4.3″ 4.3″ display with 480×272 resolution Refresh rate: 20 ms 16MB flash 6-pin UART interface Micro SD card slot, GPU, RGB driver, RGB buffer, resistive touch sensor Dimensions […]

ITEAD Core AW204X AllWinner A20 SoM and Core EVB Baseboard

ITEAD Studio has been making systems-on-module based on Allwinner processors for a little while which are found in the company’s IBOX mini PC, MOD Duo guitar pedal, and more. They’ve now launched a new system-on-module with a 204-pin SO-DIMM connector instead of the headers used in the earlier modules. ITEAD Core AW2041 / AW2042  SoM specifications: SoC- AllWinner A20 dual core ARM Cortex-A7 @ 1 GHz + ARM Mali 400 MP2 System Memory – 1 or 2 GB DDR3 RAM (AW2014: 1GB, AW2042: 2GB). Storage – 4GB NAND Flash, micro SD card slot (on the back), SATA connector. Connector – 204-pin SO-DIMM edge connector with UART, I2C, SPI, LCD, I2S, LVDS, GPIO, etc.. signals Misc – Built-in RTC, reset, FEL and power buttons. Power – 5V supply, 3.3V I/Os. AXP209 PMIC. Dimensions – 67.60 x 48.25 x 1.6 mm Weight – 35 grams Temperature Range – Commercial To facilitate development, the […]

Linux based MOD Duo Multi-Effects Pedal is Powered by an AllWinner A20 SoM (Crowdfunding)

If you are both a maker and a musician, MOD Duo multipurpose pedal may be a fun “toy” to play with. It’s an embedded computer comprised of a Hi-Fi soundcard (baseboard) powered by the same ITEAD Studio A20-CORE system on module found in ITEAD Studio IBOX, fitted into an enclosure with a pedalboard interface, and two graphics displays. You can create and share your own effects, or download the one made by the community using LV2 sound plugins, an open sound processing standard. A MOD Arduino Shield is also available to create new peripherals. Some technical specifications of the MOD Duo: SoC – AllWinner A20 dual core Cortex A7 processor @ 1GHz (AllWinner A23 is part of stretch goals) Two audio inputs Two audio outputs Stereo headphones output MIDI IN and MIDI OUT Cirrus Audio Codec USB – 1x USB Host for bluetooth, Wifi adapters and MIDI peripherals, 1x USB […]

ITEAD Studio IBOX AllWinner A20 mini PC Review

ITEAD Studio IBOX is an AllWinner A20 based mini PC currently running Android or Linux distributions currently featured on Indiegogo. I’ve already written about IBOX in a separate post, where you can get all the specifications, but the company has also sent me a unit (engineering sample) for review. Since the system is still in development, and it’s mostly a development platform, I won’t do a review with video testing, system performance, etc… as usual, but rather show the progress and current issues in terms of hardware and software, and I’ll also mention documentation, and shortly try Android 4.2 (pre-installed) and the Debian 7.0 image released by the company. IBOX Unboxing Pictures I’ve received the device in a cartoon box containing the device itself and a 9V/2A power supply. If you are or become a backer on Indiegogo you’ll also receive an add-on board providing access to a SATA connector,  […]

ITEAD Studio IBOX Powered by AllWinner A20 Features a 32-Pin Hacker-Friendly Connector (Crowdfunding)

ITEAD Studio IBOX is a mini computer powered by AllWinner A20 dual core Cortex A7 processor with 1GB RAM and 4GB Flash, a few USB connectors, Ethernet and video/audio connector. This mini pc can run both Android & Linux, and features a 32-pin connector that allows to connect expansion boards. Let’s have a look at the specifications: SoC- AllWinner A20 dual core ARM Cortex-A7 @ 1 GHz + ARM Mali 400 MP2 System Memory – 1GB DDR3 RAM Storage – 4GB NAND Flash + microsd slot Video Output – HDMI Audio Output – HDMI, optical S/PDIF Connectivity – 10/100M Ethernet USB – 3x USB 2.0 host port, 1x USB OTG port (full size) Expansion – 32-pin proprietary connector with TV OUT, USB, LCD, UART, IR, CSI, SPI, SATA, GPIOS and power signals. Misc – LED , IR sensor, and U-boot button (FEL mode?) Power – 5V/2A 9V/2A Dimensions – 145 x […]

Iteaduino Lite is an $8 Arduino (Mostly) Compatible Board (Crowdfunding)

A few months ago, Borderless Electronics sold a $12 Arduino Leonardo clone ($9 + $3 shipping), and a Chinese company called Itead Studio, which also makes Iteauino Plus board (AllWinner A10), has just launched an Indiegogo campaign for an $8 Arduino “nearly-fully-compatible” board, and yes, that includes shipping. The board is similar to Arduino UNO, but with a different MCU in order to reduce costs: MCU – Logic Green LGT8F88A @ 16MHz with 8KB flash (0.7KB used by bootloader), 1KB SRAM, and 504 byte EEPROM. Operating Voltage  – 5V / 3.3V Input Voltage – Recommended: 7-20V, Limits: 7-24V Digital I/O – 14 pins of which 6 provide PWM output. Analog Input – 6 pins DC Current per I/O – Pin80 mA DC Current for 3.3V – power supply 250 mA USB – microUSB for power, programming and debugging Arduino Uno is based on Atmel ATmega328, but this baord uses LFT8F88A, […]