development board

Posted on by Jean-Luc Aufranc (CNXSoft) - 12 Comments on Widora-NEO OpenWrt WiFi IoT & Audio Board is Based on Mediatek MT7688 SoC, WM8960 Audio DAC

Widora-NEO OpenWrt WiFi IoT & Audio Board is Based on Mediatek MT7688 SoC, WM8960 Audio DAC

A couple of weeks ago, I reviewed ReSpeaker board combining MediaTek MT7688 WiFi SoC with WM8960 audio DAC, running OpenWrt, and allowing you to perform tasks using text-to-speech and speech-to-text thanks to the built-in microphone (or optional microphone array), and a 3.5mm audio jack to connect speakers, as well as several I/O pins. It turns out there’s been board with similar features, minus the built-in microphone, available in China for a while. Meet Widora-NEO. Widora-NEO board specifications: SoC – Mediatek MT7688AN MIPS SoC @ 580 MHz with built-in WiFi System Memory – 128 MB RAM Storage – 16MB SPI flash, micro SD card Connectivity – 10/100M Ethernet, 802.11 b/g/n WiFi 1T1R up to 150 Mbps with PCB antenna, or IPEX connector Audio – 3.5mm jack for stereo headphone and mono microphone, WM8960G audio codec USB – 1x micro USB port for programming via CP2104 chip, 1x micro USB host (or […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 9 Comments on $20 pcDuino4 Nano is Yet Another Allwinner H3 Development Board (Sort of)

$20 pcDuino4 Nano is Yet Another Allwinner H3 Development Board (Sort of)

We already have plenty of low cost Allwinner H3 development boards thanks to several Shenzhen Xunlong Orange Pi boards and FriendlyARM NanoPi boards among a few others. Here comes another one with pcDuino4 Nano. pcDuino4 Nano (preliminary?) specifications: SoC – Allwinner H3 quad core Cortex A7 @ 1.2 GHz with an ARM Mali-400MP2 GPU up to 600 MHz System Memory – 1GB DDR3 SDRAM Storage – micro SD card slot Video & Audio Output – HDMI and 3.5mm jack for CVBS (composite + stereo audio) Connectivity – 10/100M Ethernet USB – 3x USB 2.0 host ports, 1x micro USB OTG port Camera – DVP Interface Expansions – 40-pin Raspberry Pi compatible header with UART, SPI, I2C, PWM, GPIOs, etc… Debugging – 4-pin header for serial console Misc – Power and reset buttons; 2x LEDs; IR receiver; on-board microphone. Power Supply – 5V/2A via micro USB port; 5V via VDD_5V pin […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 12 Comments on Pine64 Unveils $2 PADI IoT Stamp WiFi IoT Module with FreeRTOS SDK, Upcoming ARM mbed 5.0 Support

Pine64 Unveils $2 PADI IoT Stamp WiFi IoT Module with FreeRTOS SDK, Upcoming ARM mbed 5.0 Support

Realtek RTL8710 WiFi IoT modules came out as potential competitors to ESP8266 modules last month, with similar features. an ARM Cortex M3, and a pricing as low as $2 in quantities. However, documentation is often in Chinese only, and based on my experience with an RTL8710AF module limited to AT commands set for now. Software and documentation are likely to improve a lot however, as Pine64, the makers of Pine A64 boards, are about to launch their own “PADI IoT Stamp” RTL8710AF module for just $1.99 in any quantities. PADI IoT Stamp specifications: SoC – Realtek RTL8710AF ARM Cortex-M3 @ 83 MHz with 1MB ROM, 512KB RAM, and 1MB flash Connectivity – 802.11 b/g/n WiFi @ 2.4 GHz – 2.5 GHz (2400 MHz – 2483.5 MHz) with PCB antenna; Station / SoftAP / SoftAP + Station modes; Expansion headers – 22 half-holes with Up to 1x SPI @ 41.5 Mbps […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Explore M3 Board based on NXP LPC1768 Cortex M3 MCU Comes with Lots of Tutorials (Crowdfunding)

Explore M3 Board based on NXP LPC1768 Cortex M3 MCU Comes with Lots of Tutorials (Crowdfunding)

Explore M3 is an ARM Cortex M3 development board powered by a micro USB port, with plenty of I/Os, Arduino compatible, and the developers have also written many tutorials to help people getting started as fast and easily as possible. A starter kit with cables and sensors is also available with the board. Specifications: MCU – NXP LPC1768 ARM Cortex M3 @ up to 100MHz with 512KB flash, 64KB RAM, USB – 1x micro USB 2.0 OTG port for programming and power Expansion Headers – 2x 20-pin male headers + 8-pin unpopulated header with 38x GPIOs, 4x UARTs, 2x CAN, 2x SPI, 2x I2C, 6x PWM, 5x ADC, 1x DAC, 2x interrupt pins, I2S audio, and power signal Debugging – JTAG/SWD Debug connector Misc – USB boot and reset buttons Dimensions – 55mm x 25mm The hardware is somewhat similar to mbed LPC1768 board but with a few more I/Os. […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Rockchip RV1108 Cortex A7 + DSP SoC is Made for Audio & Video Conference and Recording Applications

Rockchip RV1108 Cortex A7 + DSP SoC is Made for Audio & Video Conference and Recording Applications

[Update May 2017: Rockchip has renamed RK1108 to RV1108.] Rockchip has introduced RV1108 ARM Cortex A7 SoC with a 600 MHz DSP targeting visual communication, consumer electronics, automotive DVR, and security applications thanks to its 8-channel I2S audio codec and 1440p H.264 video encoder and decoder. Detailed specifications can be found on the official Rockchip Wiki: CPU – Single-core ARM Cortex-A7 Core processor with NEON and FPU,  32KB/32KB L1 I-Cache/D-Cache, Unified 128KB L2 Cache, and Trustzone Video/Image DSP – Up to 600 MHz, 32KB I-TCM and 32KB I-cache, 128KB D-TCM Memory 12KB internal SRAM DDR3/DDR3L interface – 16 Bits data width, 1 ranks (chip selects), up to 512 MB RAM NAND Flash Interface – 8-bit async NAND flash, 16-bit hardware ECC eMMC Interface – Compatible with standard iNAND interface, eMMC 4.51 standard. SD/MMC Interface – Compatible with SD 3.0, MMC 4.41 System Component 2x 64-bit timers with interrupt-based operation 8x […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 10 Comments on MinnowBoard Turbot SBC Gets a Quad Core Atom E3845 Processor, Better Ethernet, and a Fansink

MinnowBoard Turbot SBC Gets a Quad Core Atom E3845 Processor, Better Ethernet, and a Fansink

MinnowBoard Turbot open source hardware SBC was released in 2015 with an Intel Atom E3826 dual core Bay Trail-I processor, 2GB RAM, SATA and Gigabit Ethernet support, and a new version – MinnowBoard Turbot Quad – with a more powerful quad core processor, an heatsink and fan, and better Ethernet connectivity will be launched in December. MinnowBoard Turbot Quad “MBT-4210” board specifications: SoC – Intel Atom E3845 quad core Bay Trail-I processor @ 1.92 GHz with Intel HD graphics @ 542 / 792 MHz (10W TDP) System Memory – 2GB DDR3L 1067 MT/s (Soldered) Storage – 1x SATA2 3Gbs, 1x micro SD card slot, , 8 MB SPI Flash for firmware (Tianocore UEFI, Coreboot, SeaBIOS) Video & Audio Output – 1x micro HDMI connector Connectivity – 10/100/1000M Ethernet RJ-45 connector (Intel i211 instead of Realtek NIC on first board) USB – 1x USB 3.0 host, 1x USB 2.0 host Debugging […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 15 Comments on $5 Wemos D1 mini Pro ESP8266 Board includes 16MB Flash

$5 Wemos D1 mini Pro ESP8266 Board includes 16MB Flash

Wemos D1 mini is one of my favorite ESP8266 development boards thanks to its small size, shield support, and low $4 price tag. There’s now a new version of the board – dubbed Wemos D1 mini Pro – with 16MB flash instead of 4MB for the original version, and a few other modifications. Wemos D1 mini Pro specifications: WiFi 802.11 b/g/n module based on ESP8266EX with 16 MB flash, chip antenna and external antenna connector Expansion – Through holes with 11x digital input/output pins (3.3V) supporting interrupt/PWM/I2C/one-wire (except D0 pin) 1x analog input (3.3V max input) Reset and power signals (5V, 3.3V, GND) USB – micro USB port Misc – Reset button Power – 5V via micro USB or 5V pin Dimensions – 34.2 x 25.6 mm Weight – 2.5 grams Beside the larger flash,  the main differences are listed in a Wemos forum post: External antenna connector – switch […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on OpenRex Open Source Hardware NXP i.MX6 Board Launched for 199 Euros and Up

OpenRex Open Source Hardware NXP i.MX6 Board Launched for 199 Euros and Up

OpenRex is an open source hardware board powered by NXP i.MX6 Cortex A9 processor designed by Fedevel for their hardware design course, and manufactured by Voipac, both companies based on Slovakia. The schematics, PCB layout, gerber files and other manufacturing files were released in February, but the company has only started selling the board a few days ago with OpenRex Basic SBC and OpenRex Max SBC boards. OpenRex Basic and Max boards specifications: SoC OpenRex Basic – NXP i.MX 6Solo single core Cortex A9 processor @ 1 GHz with 2D and 3D GPU OpenRex Max – NXP i.MX 6Quad quad core Cortex A9 processor @ 1 GHz with 2D and 3D GPU MCU – NXP LPC1345FHN33 ARM Cortex-M3 micro-controller @ 72 MHz System Memory Basic – 512 MB DDR3-1066 (400MHz) Max – 2GB DDR3-1066 (533 MHz) Storage Basic – micro SD slot, 1x 2Kbit I2C EEPROM, 1x 32Mbit SPI flash Max […]

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